Boechera retrofracta (Graham) Á. Löve & D. Löve  

Family: Brassicaceae

a holboell rock-cress

[Arabis arcuata var. secunda (Howell) B.L. Rob., moreArabis caduca A. Nelson, Arabis exilis A. Nelson, Arabis holboellii var. retrofracta (Graham) Rydb., Arabis holboellii var. secunda (Howell) Jeps., Arabis kochii Blank., Arabis lignipes A. Nelson, Arabis retrofracta Graham, Arabis retrofracta var. multicaulis B. Boivin, Arabis rhodantha Greene, Arabis rhodanthus Greene, Arabis secunda Howell, Arabis tenuis Greene, Boechera exilis (A. Nelson) Dorn, Boechera holboellii var. retrofracta (Graham) Dorn, Boechera holboellii var. secunda (Howell) Dorn]