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Organism
  Plantae
    Viridiplantae
     Streptophyta
     Embryophyta
      Tracheophyta
        Spermatophytina
            Magnoliopsida
                  Asteranae
                    Asterales
                           [Alseuosmiales]
                           [Ambrosiales]
                           [Anthemidales]
                           [Boopidales]
                           [Brunoniales]
                           [Calendulales]
                           [Calycerales]
                           [Campanulales]
                           [Carduales]
                           [Cichoriales]
                           [Cynarales]
                           [Echinopales]
                           [Goodeniales]
                           [Lobeliales]
                           [Menyanthales]
                           [Pentaphragmatales]
                           [Phellinales]
                           [Rousseales]
                           [Scaevolales]
                           [Stylidiales]
                            Asteraceae
                                   [Ambrosiaceae]
                                   [Anthemidaceae]
                                   [Aposeridaceae]
                                   [Arctotidaceae]
                                   [Artemisiaceae]
                                   [Athanasiaceae]
                                   [Calendulaceae]
                                   [Carduaceae]
                                   [Carlinaceae]
                                   [Centaureaceae]
                                   [Cichoriaceae]
                                   [Cnicaceae]
                                   [Compositae]
                                   [Cynaraceae]
                                   [Echinopaceae]
                                   [Eupatoriaceae]
                                   [Gnaphaliaceae]
                                   [Grindeliaceae]
                                   [Heleniaceae]
                                   [Helianthaceae]
                                   [Helichrysaceae]
                                   [Inulaceae]
                                   [Ivaceae]
                                   [Lactucaceae]
                                   [Lampsanaceae]
                                   [Madiaceae]
                                   [Matricariaceae]
                                   [Mutisiaceae]
                                   [Nassauviaceae]
                                   [Picridaceae]
                                   [Santolinaceae]
                                   [Senecionaceae]
                                   [Serrulataceae]
                                   [Tanacetaceae]
                                   [Tussilagaceae]
                                   [Vernoniaceae]
                                   [Xanthiaceae]
                                   [Xeranthemaceae]
                                     Acanthocephalus
                                             Acanthocephalus benthamianus
                                     Acanthospermum
                                             Acanthospermum australe
                                             Acanthospermum hispidum
                                     Achillea
                                             Achillea asiatica
                                             Achillea biebersteinii
                                             Achillea borealis
                                             Achillea borealis ssp. californica
                                             Achillea filipendulina
                                             Achillea lanulosa
                                             Achillea millefolium
                                             Achillea millefolium ssp. lanulosa
                                             Achillea millefolium var. alpicola
                                             Achillea millefolium var. lanulosa
                                             Achillea millefolium var. millefolium
                                             Achillea millefolium var. occidentalis
                                             Achillea setacea
                                             Achillea sibirica
                                     Achyrachaena
                                             Achyrachaena mollis
                                     Acmella
                                             Acmella alba
                                             Acmella oppositifolia
                                             Acmella uliginosa
                                     Acourtia
                                             Acourtia microcephala
                                             Acourtia nana
                                     Acroptilon
                                             Acroptilon australe
                                             Acroptilon repens
                                     Adenocaulon
                                             Adenocaulon bicolor
                                     Adenophyllum
                                             Adenophyllum cooperi
                                     Adenostemma
                                             Adenostemma verbesina
                                     Ageratina
                                             Ageratina adenophora
                                             Ageratina altissima
                                             Ageratina altissima var. roanensis
                                             Ageratina herbacea
                                     Ageratum
                                             Ageratum conyzoides
                                             Ageratum houstonianum
                                             Ageratum littorale
                                     Ajania
                                             Ajania fastigiata
                                             Ajania fruticulosa
                                     Alfredia
                                             Alfredia acantholepis
                                             Alfredia nivea
                                     Amberboa
                                             Amberboa turanica
                                     Amblyolepis
                                             Amblyolepis setigera
                                     Amblyopappus
                                             Amblyopappus pusillus
                  Ambrosia
                  Ambrosia pumila
                                     Ampelaster
                                             Ampelaster carolinianus
                                     Amphiachyris
                                             Amphiachyris dracunculoides
                                     Anaphalis
                                             Anaphalis margaritacea
                                             Anaphalis sinica var. densata
                                     Ancistrocarphus
                                             Ancistrocarphus filagineus
                                     Anisocoma
                                             Anisocoma acaulis
                                     Anthemis
                                             Anthemis arvensis
                                             Anthemis cotula
                                             Anthemis ruthenica
                                             Anthemis subtinctoria
                                             Anthemis tinctoria
                                     Aphanostephus
                                             Aphanostephus ramosissimus var. humilis
                                             Aphanostephus riddellii
                                             Aphanostephus skirrhobasis
                                     Arctium
                                             Arctium lappa
                                             Arctium leiospermum
                                             Arctium minus
                                             Arctium tomentosum
                  Argyroxiphium
                  Argyroxiphium kauense
                  Argyroxiphium sandwicense
                  Argyroxiphium sandwicense ssp. sandwicense
                  Argyroxiphium sandwicense ssp.macrocephalum
                                     Arnica
                                             Arnica acaulis
                                             Arnica alpina
                                             Arnica cordifolia
                                             Arnica cordifolia var. cordifolia
                                             Arnica discoidea
                                             Arnica latifolia
                                             Arnica latifolia var. gracilis
                                             Arnica lonchophylla
                                             Arnica longifolia
                                             Arnica mollis
                                             Arnica sororia
                                     Arnoglossum
                                             Arnoglossum atriplicifolium
                                             Arnoglossum muehlenbergii
                                             Arnoglossum plantagineum
                  Baccharis
                  Baccharis vanessae
                                     Baeria
                                             Baeria californica
                                             Baeria chrysostoma
                                             Baeria minor
                                     Bahia
                                             Bahia absinthifolia
                                             Bahia dissecta
                                             Bahia oppositifolia
                                     Baileya
                                             Baileya multiradiata
                                             Baileya pleniradiata
                                     Balduina
                                             Balduina angustifolia
                                     Balsamita
                                             Balsamita major
                                     Balsamorhiza
                                             Balsamorhiza careyana
                                             Balsamorhiza hookeri
                                             Balsamorhiza hookeri var. lanata
                                             Balsamorhiza incana
                                             Balsamorhiza sagittata
                                     Bebbia
                                             Bebbia juncea
                                     Bellis
                                             Bellis perennis
                                     Berlandiera
                                             Berlandiera lyrata
                                             Berlandiera pumila
                  Bidens
                  Bidens micrantha
                  Bidens micrantha ssp. kalealaha
                  Bidens wiebkei
                                     Bigelowia
                                             Bigelowia atlanticus
                                             Bigelowia nudata
                                             Bigelowia nudata ssp. australis
                                             Bigelowia nuttallii
                                     Blennosperma
                  Blennosperma bakeri
                                             Blennosperma nanum
                                     Blepharipappus
                                             Blepharipappus scaber
                                     Blumea
                                             Blumea aromatica
                                             Blumea lanceolaria
                                     Boltonia
                                             Boltonia asteroides
                                             Boltonia asteroides var. recognita
                                             Boltonia caroliniana
                  Boltonia decurrens
                                             Boltonia diffusa
                                             Boltonia diffusa var. interior
                                     Borrichia
                                             Borrichia arborescens
                                             Borrichia frutescens
                                     Brachanthemum
                                             Brachanthemum kirghisorum
                                     Brachyactis
                                             Brachyactis ciliata
                                     Bradburia
                                             Bradburia pilosa
                  Brickellia
                  Brickellia mosieri
                                     Cacalia
                                             Cacalia atriplicifolia
                                             Cacalia plantaginea
                                             Cacalia rugelia
                                     Cacaliopsis
                                             Cacaliopsis nardosmia
                                     Calendula
                                             Calendula officinalis
                                     Callistephus
                                             Callistephus chinensis
                                     Calycadenia
                                             Calycadenia mollis
                                             Calycadenia multiglandulosa
                                     Calyptocarpus
                                             Calyptocarpus vialis
                                     Carduus
                                             Carduus acanthoides
                                             Carduus nutans
                                             Carduus nutans ssp. leiophyllus
                                             Carduus nutans var. leiophyllus
                                             Carduus spinosissimus
                                     Carphephorus
                                             Carphephorus corymbosus
                                             Carphephorus odoratissimus
                                             Carphephorus paniculatus
                                     Carpochaete
                                             Carpochaete bigelovii
                                     Carthamus
                                             Carthamus oxyacanthus
                                             Carthamus tinctorius
                                             Carthamus turkestanicus
                  Cayia
                                     Centratherum
                                             Centratherum punctatum
                                     Chaenactis
                                             Chaenactis artemisiifolia
                                             Chaenactis carphoclinia
                                             Chaenactis douglasii
                                             Chaenactis douglasii var. montana
                                             Chaenactis fremontii
                                             Chaenactis glabriuscula
                                             Chaenactis glabriuscula var. curta
                                             Chaenactis glabriuscula var. glabriuscula
                                             Chaenactis glabriuscula var. lanosa
                                             Chaenactis glabriuscula var. orcuttiana
                                             Chaenactis stevioides
                                             Chaenactis xantiana
                                     Chaetopappa
                                             Chaetopappa asteroides
                                             Chaetopappa aurea
                                             Chaetopappa bellidifolia
                                     Chamaemelum
                                             Chamaemelum fuscatum
                                             Chamaemelum nobilis
                                     Chamomilla
                                             Chamomilla suaveolens
                                     Chaptalia
                                             Chaptalia nutans
                                             Chaptalia tomentosa
                                     Chondrilla
                                             Chondrilla aspera
                                             Chondrilla juncea
                                             Chondrilla laticoronata
                                             Chondrilla lejosperma
                                     Chromolaena
                  Chromolaena frustrata
                                             Chromolaena macrodon
                                             Chromolaena odorata
                                     Chrysogonum
                                             Chrysogonum virginianum
                                             Chrysogonum virginianum var. australe
                                             Chrysogonum virginianum var. virginianum
                                     Chrysoma
                                             Chrysoma pauciflosculosa
                  Chrysopsis
                  Chrysopsis floridana
                                     Chrysothamnus
                                             Chrysothamnus depressus
                                             Chrysothamnus humilis
                                             Chrysothamnus linifolius
                                             Chrysothamnus nauseosus
                                             Chrysothamnus nauseosus ssp. albicaulis
                                             Chrysothamnus nauseosus ssp. consimilis
                                             Chrysothamnus nauseosus ssp. graveolens
                                             Chrysothamnus nauseosus ssp. hololeucus
                                             Chrysothamnus nauseosus ssp. latisquameus
                                             Chrysothamnus nauseosus var. consimilis
                                             Chrysothamnus nauseosus var. graveolens
                                             Chrysothamnus nauseosus var. nauseosus
                                             Chrysothamnus nauseosus var. oreophilus
                                             Chrysothamnus paniculatus
                                             Chrysothamnus parryi
                                             Chrysothamnus parryi ssp. attenuatus
                                             Chrysothamnus parryi ssp. parryi
                                             Chrysothamnus teretifolius
                                             Chrysothamnus vaseyi
                                             Chrysothamnus viscidiflorus
                                             Chrysothamnus viscidiflorus ssp. lanceolatus
                                     Cicerbita
                                             Cicerbita azurea
                                     Cichorium
                                             Cichorium intybus
                  Cirsium
                  Cirsium fontinale
                  Cirsium fontinale var. fontinale
                  Cirsium fontinale var. obispoense
                  Cirsium pitcheri
                  Cirsium scariosum
                  Cirsium scariosum var. citrinum
                         [Cirsium loncholepis]
                  Cirsium vinaceum
                                     Clibadium
                                             Clibadium laxum
                                             Clibadium leiocarpum
                                             Clibadium parviceps
                                             Clibadium sylvestre
                                     Cnicothamnus
                                             Cnicothamnus lorentzii
                                     Cnicus
                                             Cnicus benedictus
                                     Conoclinium
                                             Conoclinium coelestinum
                                     Conyza
                                             Conyza apurensis
                                             Conyza bonariensis
                                             Conyza canadensis
                                             Conyza canadensis var. canadensis
                                             Conyza canadensis var. pusilla
                                             Conyza ramosissima
                                             Conyza schiedeana
                                     Coreocarpus
                                             Coreocarpus arizonicus
                                     Corethrogyne
                                             Corethrogyne filaginifolia
                                     Cosmos
                                             Cosmos bipinnatus
                                             Cosmos sulphureus
                                     Cotula
                                             Cotula coronopifolia
                                     Crocidium
                                             Crocidium multicaule
                                     Croptilon
                                             Croptilon divaricatum
                                     Crupina
                                             Crupina vulgaris
                  Deinandra
                  Deinandra conjugens
                  Deinandra increscens
                  Deinandra increscens ssp. villosa
                                     Dendranthema
                                             Dendranthema indicum
                                     Dichaetophora
                                             Dichaetophora campestris
                                     Dichrocephala
                                             Dichrocephala auriculata
                                     Doellingeria
                                             Doellingeria umbellata
                                     Doronicum
                                             Doronicum altaicum
                                             Doronicum oblongifolium
                  Dubautia
                  Dubautia herbstobatae
                  Dubautia imbricata
                  Dubautia kalalauensis
                  Dubautia kenwoodii
                  Dubautia latifolia
                  Dubautia pauciflorula
                  Dubautia plantaginea
                  Dubautia plantaginea ssp. humilis
                  Dubautia plantaginea ssp. magnifolia
                  Dubautia waialealae
                                     Dugaldia
                                             Dugaldia hoopesii
                                     Dyssodia
                                             Dyssodia chrysanthemoides
                                             Dyssodia papposa
                                             Dyssodia pentachaeta
                                             Dyssodia pentachaeta var. hartwegii
                                             Dyssodia thurberi
                                     Echinacea
                                             Echinacea angustifolia
                  Echinacea laevigata
                                             Echinacea pallida
                                             Echinacea purpurea
                                             Echinacea sanguinea
                                             Echinacea simulata
                                             Echinacea tennesseensis
                                     Eclipta
                                             Eclipta prostrata
                                     Emilia
                                             Emilia fosbergii
                                             Emilia sonchifolia
                                             Emilia sonchifolia var. javanica
                                     Encelia
                                             Encelia californica
                                             Encelia farinosa
                                             Encelia frutescens
                                             Encelia virginensis
                  Enceliopsis
                  Enceliopsis nudicaulis
                  Enceliopsis nudicaulis var. corrugata
                                     Engelmannia
                                             Engelmannia pinnatifida
                                     Erechtites
                                             Erechtites hieracifolia
                                             Erechtites hieraciifolius
                                             Erechtites minima
                                     Ericameria
                                             Ericameria arborescens
                                             Ericameria cooperi var. cooperi
                                             Ericameria laricifolia
                                             Ericameria linearifolia
                                             Ericameria nauseosa var. nauseosa
                                             Ericameria palmeri var. pachylepis
                                             Ericameria pinifolia
                  Erigeron
                  Erigeron decumbens
                  Erigeron parishii
                  Erigeron rhizomatus
                                     Eriophyllum
                                             Eriophyllum ambiguum
                                             Eriophyllum ambiguum var. ambiguum
                                             Eriophyllum confertiflorum
                                             Eriophyllum confertiflorum var. confertiflorum
                                             Eriophyllum lanatum
                                             Eriophyllum lanatum var. Lanceolatum
                                             Eriophyllum lanatum var. achillaeoides
                                             Eriophyllum lanatum var. arachnoideum
                                             Eriophyllum lanatum var. croceum
                                             Eriophyllum lanatum var. grandiflorum
                                             Eriophyllum lanatum var. integrifolium
                                             Eriophyllum lanatum var. lanatum
                  Eriophyllum latilobum
                                             Eriophyllum multicaule
                                             Eriophyllum pringlei
                                             Eriophyllum staechadifolium
                                             Eriophyllum wallacei
                                     Eucephalus
                                             Eucephalus engelmannii
                                             Eucephalus glaucus
                                     Eupatoriadelphus
                                             Eupatoriadelphus fistulosus
                                             Eupatoriadelphus maculatus
                                             Eupatoriadelphus purpureus
                                     Eurybia
                                             Eurybia chlorolepis
                                             Eurybia conspicua
                                             Eurybia divaricata
                  Eurybia furcata
                                             Eurybia hemispherica
                                             Eurybia merita
                                     Euthamia
                                             Euthamia Caroliniana
                                             Euthamia graminifolia
                                             Euthamia graminifolia var. graminifolia
                                             Euthamia graminifolia var. nuttallii
                                             Euthamia graminifolia var. polycephala
                                             Euthamia gymnospermoides
                                             Euthamia leptocephala
                                             Euthamia minor
                                             Euthamia occidentalis
                                             Euthamia tenuifolia
                                             Euthamia tenuifolia var. tenuifolia
                                     Eutrochium
                                             Eutrochium dubium
                                     Evax
                                             Evax candida
                                             Evax prolifera
                                     Facelis
                                             Facelis retusa
                                     Filago
                                             Filago arvensis
                                             Filago californica
                                             Filago depressa
                                             Filago gallica
                                     Flaveria
                                             Flaveria chlorifolia
                                             Flaveria floridana
                                             Flaveria linearis
                                             Flaveria trinervia
                                     Fleischmannia
                                             Fleischmannia incarnata
                                     Flourensia
                                             Flourensia cernua
                                     Franseria
                                             Franseria acanthicarpa
                                     Galatella
                                             Galatella coriacea
                                     Galinsoga
                                             Galinsoga parviflora
                                             Galinsoga quadriradiata
                                     Gamochaeta
                                             Gamochaeta americana
                                             Gamochaeta antillana
                                             Gamochaeta coarctata
                                             Gamochaeta pensylvanica
                                             Gamochaeta purpurea
                                     Garberia
                                             Garberia fruticosa
                                             Garberia heterophylla
                                     Geraea
                                             Geraea canescens
                                     Grindelia
                                             Grindelia acutifolia
                                             Grindelia arizonica var. stenophylla
                                             Grindelia camporum
                                             Grindelia ciliata
                                             Grindelia decumbens
                                             Grindelia fastigiata
                  Grindelia fraxinipratensis
                                             Grindelia humilis
                                             Grindelia lanceolata
                                             Grindelia nana var. nana
                                             Grindelia nuda var. aphanactis
                                             Grindelia nuda var. nuda
                                             Grindelia squarrosa
                                             Grindelia squarrosa var. nuda
                                             Grindelia squarrosa var. quasiperennis
                                             Grindelia squarrosa var. serrulata
                                             Grindelia squarrosa var. squarrosa
                                             Grindelia subalpina var. erecta
                                     Guardiola
                                             Guardiola platyphylla
                                     Gutierrezia
                                             Gutierrezia dracunculoides
                                             Gutierrezia microcephala
                                             Gutierrezia sarothrae
                                     Gymnolomia
                                             Gymnolomia multiflora
                                     Gymnosperma
                                             Gymnosperma glutinosum
                                     Gynura
                                             Gynura crepidioides
                                             Gynura sarmentosa
                                     Handelia
                                             Handelia trichophylla
                                     Haploesthes
                                             Haploesthes greggii
                                     Hasteola
                                             Hasteola suaveolens
                                     Hazardia
                                             Hazardia squarrosa
                                     Hedypnois
                                             Hedypnois cretica
                                     Helenium
                                             Helenium amarum
                                             Helenium autumnale
                                             Helenium autumnale var. autumnale
                                             Helenium autumnale var. montanum
                                             Helenium bigelovii
                                             Helenium flexuosum
                                             Helenium hoopesii
                                             Helenium linifolium
                                             Helenium pinnatifidum
                                             Helenium vernale
                  Helenium virginicum
                                     Helianthella
                                             Helianthella quinquenervis
                                             Helianthella uniflora var. douglasii
                  Helianthus
                  Helianthus paradoxus
                  Helianthus schweinitzii
                  Helianthus × verticillatus
                                     Helichrysum
                                             Helichrysum maracandicum
                                             Helichrysum mussae
                                             Helichrysum thianschanicum
                                     Heliomeris
                                             Heliomeris longifolia
                                             Heliomeris longifolia var. annua
                                             Heliomeris multiflora
                                             Heliomeris multiflora var. multiflora
                                     Heliopsis
                                             Heliopsis gracilis
                                             Heliopsis helianthoides
                                             Heliopsis helianthoides ssp. occidentalis
                                             Heliopsis helianthoides ssp. scabra
                                             Heliopsis helianthoides var. scabra
                                             Heliopsis scabra
                                     Hemizonella
                                             Hemizonella minima
                  Hesperomannia
                  Hesperomannia arborescens
                  Hesperomannia arbuscula
                                     Heteracia
                                             Heteracia epapposa
                                             Heteracia szovitsii
                                     Heteropappus
                                             Heteropappus altaicus
                                             Heteropappus canescens
                                     Heterotheca
                                             Heterotheca camporum
                                             Heterotheca camporum var. camporum
                                             Heterotheca grandiflora
                                             Heterotheca latifolia
                                             Heterotheca sessiliflora
                                             Heterotheca stenophylla
                                             Heterotheca stenophylla var. stenophylla
                                             Heterotheca subaxillaris
                                             Heterotheca villosa
                                             Heterotheca villosa var. foliosa
                                             Heterotheca villosa var. hispida
                                             Heterotheca villosa var. minor
                                             Heterotheca villosa var. villosa
                                     Hippolytia
                                             Hippolytia herderi
                                     Holocarpha
                                             Holocarpha heermannii
                  Holocarpha macradenia
                                     Hymenoclea
                                             Hymenoclea monogyra
                                             Hymenoclea salsola
                                             Hymenoclea salsola var. pentalepis
                                     Hymenopappus
                                             Hymenopappus artemisiifolius
                                             Hymenopappus filifolius
                                             Hymenopappus filifolius var. filifolius
                                             Hymenopappus filifolius var. lugens
                                             Hymenopappus filifolius var. pauciflorus
                                             Hymenopappus flavescens
                                             Hymenopappus flavescens var. cano-tomentosus
                                             Hymenopappus flavescens var. canotomentosus
                                             Hymenopappus pauciflorus
                  Hymenopappus scabiosaeus
                                             Hymenopappus scabiosaeus var. corymbosus
                                             Hymenopappus tenuifolius
                                     Hymenothrix
                                             Hymenothrix wrightii
                  Hymenoxys
                  Hymenoxys texana
                                     Hypochaeris
                                             Hypochaeris glabra
                                             Hypochaeris radicata
                                     Inula
                                             Inula aspera
                                             Inula britannica
                                             Inula caspica
                                             Inula grandis
                                             Inula helenium
                                             Inula japonica
                                             Inula macrophylla
                                             Inula rhizocephala
                                             Inula salicina
                                     Ionactis
                                             Ionactis linariifolia
                                             Ionactis linariifolius
                                     Isocoma
                                             Isocoma acradenia
                                             Isocoma drummondii
                                             Isocoma menziesii
                                             Isocoma pluriflora
                                             Isocoma tenuisecta
                                             Isocoma wrightii
                                     Iva
                                             Iva acerosa
                                             Iva ambrosiifolia
                                             Iva annua
                                             Iva axillaris
                                             Iva dealbata
                                             Iva frutescens
                                             Iva imbricata
                                             Iva microcephala
                                             Iva xanthifolia
                                             Iva xanthiifolia
                                     Ixeris
                                             Ixeris gracilis
                                     Jaumea
                                             Jaumea carnosa
                                     Jurinea
                                             Jurinea atropurpurea
                                             Jurinea densisquamea
                                             Jurinea kamelinii
                                             Jurinea lanipes
                                             Jurinea lipskyi
                                             Jurinea modesti
                                             Jurinea nivea
                                             Jurinea sangardensis
                                     Kalimeris
                                             Kalimeris indica
                                             Kalimeris lautureana
                                             Kalimeris shimadai
                  Keysseria
                  Keysseria erici
                  Keysseria helenae
                                     Koelpinia
                                             Koelpinia linearis
                                     Lachnophyllum
                                             Lachnophyllum gossypinum
                                     Laennecia
                                             Laennecia schiedeana
                                     Lagophylla
                                             Lagophylla ramosissima
                                     Lapsana
                                             Lapsana communis
                                     Lasthenia
                  Lasthenia burkei
                                             Lasthenia californica
                                             Lasthenia chrysantha
                  Lasthenia conjugens
                                             Lasthenia coronaria
                                             Lasthenia debilis
                                             Lasthenia fremontii
                                             Lasthenia glabrata
                                             Lasthenia glabrata ssp. glabrata
                                             Lasthenia microglossa
                                             Lasthenia minor
                                     Launaea
                                             Launaea intybacea
                                     Leibnitzia
                                             Leibnitzia anandria
                                             Leibnitzia knorringiana
                                     Leontodon
                                             Leontodon autumnalis
                                             Leontodon autumnalis var. pratensis
                                     Leontopodium
                                             Leontopodium brachyactis
                                             Leontopodium fedtschenkoanum
                                             Leontopodium japonicum
                                             Leontopodium nanum
                                             Leontopodium ochroleucum
                                     Lepidaploa
                                             Lepidaploa canescens
                  Lepidaploa proctorii
                                     Lepidolopsis
                                             Lepidolopsis turkestanica
                                     Lepidospartum
                                             Lepidospartum squamatum
                                     Lessingia
                                             Lessingia filaginifolia
                                             Lessingia filaginifolia var. filaginifolia
                                             Lessingia germanorum
                                             Lessingia glandulifera var. glandulifera
                                             Lessingia glandulifera var. pectinata
                                             Lessingia hololeuca
                                             Lessingia tenuis
                                             Lessingia virgata
                                     Leucanthemum
                                             Leucanthemum maximum
                                             Leucanthemum vulgare
                                     Leucelene
                                             Leucelene ericoides
                                             Leucelene hirtella
                                     Liabum
                                             Liabum bourgeaui
                  Liatris
                  Liatris ohlingerae
                                     Libanothamnus
                                             Libanothamnus griffinii
                                     Ligularia
                                             Ligularia alpigena
                                             Ligularia macrophylla
                                             Ligularia narynensis
                                             Ligularia thomsonii
                                     Lindheimera
                                             Lindheimera texana
                  Lipochaeta
                  Lipochaeta lobata
                  Lipochaeta lobata var. leptophylla
                                     Logfia
                                             Logfia arvensis
                                     Lycoseris
                                             Lycoseris latifolia
                                     Lygodesmia
                                             Lygodesmia juncea
                                     Machaeranthera
                                             Machaeranthera annua
                                             Machaeranthera asteroides
                                             Machaeranthera australis
                                             Machaeranthera bigelovii
                                             Machaeranthera bigelovii var. bigelovii
                                             Machaeranthera canescens
                                             Machaeranthera canescens var. canescens
                                             Machaeranthera canescens var. glabra
                                             Machaeranthera canescens var. incana
                                             Machaeranthera coloradoensis
                                             Machaeranthera gracilis
                                             Machaeranthera grindelioides
                                             Machaeranthera juncea
                                             Machaeranthera linearis
                                             Machaeranthera pinnatifida
                                             Machaeranthera pinnatifida var. goodingii
                                             Machaeranthera pinnatifida var. pinnatifida
                                             Machaeranthera sessiliflora
                                             Machaeranthera tanacetifolia
                                             Machaeranthera tephrodes
                                             Machaeranthera viscosa
                                     Madia
                                             Madia elegans
                                             Madia elegans ssp. elegans
                                             Madia elegans ssp. vernalis
                                             Madia elegans ssp. wheeleri
                                             Madia elegans var. elegans
                                             Madia exigua
                                             Madia glomerata
                                             Madia gracilis
                                             Madia minima
                                             Madia nutans
                                             Madia sativa
                                             Madia yosemitana
                                     Marshallia
                                             Marshallia graminifolia
                  Marshallia mohrii
                                     Matricaria
                                             Matricaria chamomilla
                                             Matricaria discoidea
                                             Matricaria maritima
                                             Matricaria maritima ssp. phaeocephala
                                             Matricaria maritima var. agrestis
                                             Matricaria matricarioides
                                             Matricaria perforata
                                     Megalodonta
                  Megalodonta beckii
                                     Melampodium
                                             Melampodium cinereum
                                             Melampodium leucanthum
                                     Melanthera
                                             Melanthera angustifolia
                                             Melanthera aspera
                                             Melanthera hastata
                  Melanthera kamolensis
                  Melanthera micrantha
                  Melanthera nivea
                  Melanthera tenuifolia
                  Melanthera venosa
                         [Lipochaeta venosa]
                  Melanthera waimeaensis
                         [Lipochaeta waimeaensis]
                                     Micropus
                                             Micropus amphibolus
                                             Micropus californicus
                                             Micropus californicus var. californicus
                                     Microseris
                                             Microseris acuminata
                                             Microseris bigelovii
                                             Microseris campestris
                                             Microseris douglasii
                                             Microseris douglasii ssp. douglasii
                                             Microseris elegans
                                             Microseris laciniata
                                             Microseris lindleyi
                                             Microseris nutans
                                             Microseris paludosa
                                     Mikania
                                             Mikania cordifolia
                                             Mikania guaco
                                             Mikania latifolia
                                             Mikania micrantha
                                             Mikania ovalis
                                             Mikania scandens
                                             Mikania tonduzii
                                     Monolopia
                  Monolopia congdonii
                                             Monolopia lanceolata
                                     Montanoa
                                             Montanoa seleriana
                                     Mulgedium
                                             Mulgedium tataricum
                                     Neopallasia
                                             Neopallasia pectinata
                                     Neurolaena
                                             Neurolaena lobata
                                     Nothocalais
                  Nothocalais cuspidata
                                     Oclemena
                                             Oclemena acuminata
                                             Oclemena nemoralis
                                             Oclemena x blakei
                                     Oligoneuron
                                             Oligoneuron riddellii
                                             Oligoneuron rigidum
                                             Oligoneuron rigidum var. rigidum
                                     Onopordum
                                             Onopordum acanthium
                                     Osmadenia
                                             Osmadenia tenella
                                     Osteospermum
                                             Osteospermum ecklonis
                                             Osteospermum sinuatum
                                     Packera
                                             Packera anonyma
                                             Packera aurea
                                             Packera cana
                  Packera franciscana
                                             Packera glabella
                  Packera layneae
                                             Packera paupercula
                                             Packera plattensis
                                             Packera streptanthifolia
                                             Packera tomentosa
                                     Palafoxia
                                             Palafoxia arida var. arida
                                             Palafoxia integrifolia
                                             Palafoxia linearis
                                             Palafoxia sphacelata
                                             Palafoxia texana
                                     Paraixeris
                                             Paraixeris denticulata
                                     Parthenium
                                             Parthenium argentatum
                                             Parthenium confertum
                                             Parthenium confertum var. lyratum
                                             Parthenium hispidum
                                             Parthenium hysterophorus
                                             Parthenium incanum
                                             Parthenium integrifolium
                                     Pectis
                                             Pectis angustifolia var. angustifolia
                                             Pectis elongata var. floribunda
                                             Pectis glaucescens
                                             Pectis humifusa
                                             Pectis leptocephala
                                             Pectis papposa
                                             Pectis papposa var. papposa
                                             Pectis prostrata
                                     Pentacalia
                                             Pentacalia cachacoensis
                                             Pentacalia vicelliptica
                  Pentachaeta
                  Pentachaeta bellidiflora
                  Pentachaeta lyonii
                                     Pentanema
                                             Pentanema albertoregelia
                                     Perezia
                                             Perezia nana
                                             Perezia runcinata
                                     Pericome
                                             Pericome caudata
                                     Perityle
                                             Perityle vaseyi
                                     Petasites
                                             Petasites frigidus
                                             Petasites hybridus
                                             Petasites nivalis
                                             Petasites sagittatus
                                     Petradoria
                                             Petradoria pumila
                                     Peucephyllum
                                             Peucephyllum schottii
                                     Picnomon
                                             Picnomon acarna
                                     Picris
                                             Picris echioides
                                             Picris hieracioides
                                             Picris japonica
                                     Pityopsis
                                             Pityopsis aspera
                                             Pityopsis aspera var. adenolepis
                                             Pityopsis falcata
                                             Pityopsis graminifolia
                                             Pityopsis graminifolia var. graminifolia
                                             Pityopsis graminifolia var. latifolia
                                             Pityopsis pinifolia
                  Pityopsis ruthii
                                     Pluchea
                                             Pluchea camphorata
                                             Pluchea carolinensis
                                             Pluchea foetida
                                             Pluchea odorata
                                             Pluchea purpurascens
                                             Pluchea rosea
                                     Polyanthina
                                             Polyanthina nemorosa
                                     Polymnia
                                             Polymnia canadensis
                                             Polymnia canadensis var. radiata
                                             Polymnia laevigata
                                             Polymnia uvedalia
                                             Polymnia uvedalia var. densipilis
                                             Polymnia uvedalia var. floridana
                                             Polymnia uvedalia var. uvedalia
                                     Porophyllum
                                             Porophyllum gracile
                                             Porophyllum scoparium
                                     Prenanthes
                                             Prenanthes alba
                                             Prenanthes altissima
                                             Prenanthes altissima var. cinnamomea
                                             Prenanthes aspera
                                             Prenanthes crepidinea
                                             Prenanthes nana
                                             Prenanthes racemosa
                                             Prenanthes racemosa var. racemosa
                                             Prenanthes roanensis
                                             Prenanthes serpentaria
                                             Prenanthes trifoliolata
                                     Prionopsis
                                             Prionopsis ciliata
                                     Psacalium
                                             Psacalium decompositum
                                     Pseudelephantopus
                                             Pseudelephantopus spicatus
                  Pseudobahia
                  Pseudobahia bahiifolia
                  Pseudobahia peirsonii
                  Pseudobahia peirsonii
                                     Pseudognaphalium
                                             Pseudognaphalium helleri
                                             Pseudognaphalium obtusifolium
                                             Pseudognaphalium ramosissimum
                  Pseudognaphalium sandwicensium
                  Pseudognaphalium sandwicensium var. molokaiense
                                     Psilocarphus
                                             Psilocarphus brevissimus
                                             Psilocarphus brevissimus var. brevissimus
                                             Psilocarphus brevissimus var. multiflorus
                                             Psilocarphus oregonus
                                             Psilocarphus tenellus var. tenellus
                                     Psilostrophe
                                             Psilostrophe bakeri
                                             Psilostrophe cooperi
                                             Psilostrophe sparsiflora
                                             Psilostrophe tagetina
                                     Pterocaulon
                                             Pterocaulon pycnostachyum
                                     Pterocypsela
                                             Pterocypsela laciniata
                                     Pulicaria
                                             Pulicaria salviifolia
                                     Pyrethrum
                                             Pyrethrum karelinii
                                             Pyrethrum leontopodium
                                             Pyrethrum parthenifolium
                                             Pyrethrum pyrethroides
                                     Pyrrhopappus
                                             Pyrrhopappus carolinianus
                                             Pyrrhopappus multicaulis
                                     Pyrrocoma
                                             Pyrrocoma integrifolia
                                     Rafinesquia
                                             Rafinesquia californica
                                     Ratibida
                                             Ratibida columnifera
                                             Ratibida pinnata
                  Remya
                  Remya kauaiensis
                  Remya mauiensis
                  Remya montgomeryi
                                     Rhaponticum
                                             Rhaponticum repens
                                     Rhinactinidia
                                             Rhinactinidia limoniifolia
                                     Richteria
                                             Richteria pyrethroides
                                     Rigiopappus
                                             Rigiopappus leptocladus
                                     Rugelia
                                             Rugelia nudicaulis
                                     Scariola
                                             Scariola orientalis
                                     Schmalhausenia
                                             Schmalhausenia nidulans
                                     Scorzonera
                                             Scorzonera inconspicua
                                             Scorzonera litwinowii
                                             Scorzonera pubescens
                                     Sericocarpus
                                             Sericocarpus asteroides
                                             Sericocarpus tortifolius
                                     Shinnersoseris
                                             Shinnersoseris rostrata
                                     Sigesbeckia
                                             Sigesbeckia jorullensis
                                             Sigesbeckia orientalis
                                             Sigesbeckia pubescens
                                     Simsia
                                             Simsia calva
                                     Smallanthus
                                             Smallanthus uvedalia
                                             Smallanthus uvedalius
                                     Soliva
                                             Soliva mutisii
                                             Soliva pterosperma
                                             Soliva sessilis
                                     Sonchus
                                             Sonchus arvensis
                                             Sonchus arvensis var. glabrescens
                                             Sonchus asper
                                             Sonchus oleraceus
                                             Sonchus uliginosus
                                     Sphaeromeria
                                             Sphaeromeria cana
                                     Spilanthes
                                             Spilanthes americana var. repens
                                     Stebbinsoseris
                                             Stebbinsoseris decipiens
                                     Stemmacantha
                                             Stemmacantha uniflora
                                     Stenotus
                                             Stenotus acaulis
                                             Stenotus acaulis var. acaulis
                                             Stenotus armerioides
                                     Stephanomeria
                                             Stephanomeria exigua
                                             Stephanomeria exigua ssp. exigua
                  Stephanomeria malheurensis
                                             Stephanomeria paniculata
                                             Stephanomeria pauciflora
                                             Stephanomeria spinosa
                                             Stephanomeria virgata
                                     Stevia
                                             Stevia rebaudiana
                                     Struchium
                                             Struchium sparganophorum
                                     Stylocline
                                             Stylocline citroleum
                                             Stylocline gnaphalioides
                                             Stylocline gnaphaloides
                                     Syntrichopappus
                                             Syntrichopappus fremontii
                                     Tanacetopsis
                                             Tanacetopsis mucronata
                                     Tanacetum
                                             Tanacetum boreale
                                             Tanacetum huronense
                                             Tanacetum nuttallii
                                             Tanacetum parthenium
                                             Tanacetum vulgare
                  Taraxacum
                  Taraxacum californicum
                                     Tetradymia
                                             Tetradymia canescens
                                             Tetradymia comosa
                                             Tetradymia spinosa
                                     Tetragonotheca
                                             Tetragonotheca helianthoides
                  Tetramolopium
                  Tetramolopium arenarium
                  Tetramolopium capillare
                  Tetramolopium filiforme
                  Tetramolopium lepidotum
                  Tetramolopium lepidotum ssp. lepidotum
                  Tetramolopium remyi
                  Tetramolopium rockii
                                     Tetraneuris
                                             Tetraneuris acaulis var. acaulis
                  Tetraneuris herbacea
                                             Tetraneuris torreyana
                                     Thelesperma
                                             Thelesperma filifolium
                                             Thelesperma filifolium var. intermedium
                                             Thelesperma marginatum
                                             Thelesperma megapotamicum
                                     Thymophylla
                                             Thymophylla acerosa
                                             Thymophylla pentachaeta
                                             Thymophylla pentachaeta var. pentachaeta
                                             Thymophylla tenuiloba
                  Thymophylla tephroleuca
                                     Tithonia
                                             Tithonia rotundifolia
                                     Townsendia
                  Townsendia aprica
                                             Townsendia exscapa
                                             Townsendia grandiflora
                                             Townsendia montana var. minima
                                             Townsendia parryi
                                     Tridax
                                             Tridax procumbens
                                     Tripleurospermum
                                             Tripleurospermum inodorum
                                     Trixis
                                             Trixis californica
                                     Turczaninovia
                                             Turczaninovia fastigiata
                                     Turczaninowia
                                             Turczaninowia fastigiata
                                     Tussilago
                                             Tussilago farfara
                                     Uropappus
                                             Uropappus lindleyi
                                     Verbesina
                                             Verbesina alternifolia
                  Verbesina dissita
                                             Verbesina encelioides
                                             Verbesina helianthoides
                                             Verbesina howardiana
                                             Verbesina occidentalis
                                             Verbesina turbacensis
                                             Verbesina urticifolia
                                             Verbesina virginica
                                             Verbesina virginica var. virginica
                                     Vernonia
                                             Vernonia acaulis
                                             Vernonia angustifolia
                                             Vernonia baldwinii
                                             Vernonia brasiliana
                                             Vernonia cinerea
                                             Vernonia fasciculata
                                             Vernonia fasciculata var. corymbosa
                                             Vernonia gigantea
                                             Vernonia gigantea ssp. gigantea
                                             Vernonia gigantea var. gigantea
                                             Vernonia glauca
                                             Vernonia marginata
                                             Vernonia missurica
                                             Vernonia noveboracensis
                                             Vernonia patens
                                             Vernonia remotiflora
                                             Vernonia scorpioides
                                     Viguiera
                                             Viguiera laciniata
                                             Viguiera multiflora
                                             Viguiera parishii
                                             Viguiera stenoloba
                                     Wedelia
                                             Wedelia calycina
                                             Wedelia trilobata
                                     Whitneya
                                             Whitneya dealbata
                  Wilkesia
                  Wilkesia hobdyi
                                     Wyethia
                                             Wyethia angustifolia
                                             Wyethia elata
                                             Wyethia glabra
                                             Wyethia helenioides
                                             Wyethia mollis
                                             Wyethia ovata
                                             Wyethia scabra var. canescens
                                     Xanthisma
                                             Xanthisma spinulosum var. glaberrimum
                                     Xeranthemum
                                             Xeranthemum longepapposum
                                     Xylorhiza
                                             Xylorhiza tortifolia var. tortifolia
                  Yermo
                  Yermo xanthocephalus
                                     Youngia
                                             Youngia japonica
                                     Zinnia
                                             Zinnia acerosa
                                             Zinnia elegans
                                             Zinnia grandiflora
                                             Zinnia peruviana
                                             Zinnia pumila
                                             Zinnia violacea