Epilobium campestre (Jeps.) Hoch & W.L. Wagner  

Family: Onagraceae

smooth spike-primrose

[Boisduvalia glabella (Nutt.) Walp., moreBoisduvalia glabella var. campestris (Jeps.) Jeps., Boisduvalia pygmaea (Speg.) Munz, Epilobium pygmaeum (Speg.) Hoch & P.H. Raven, Oenothera glabella Nutt.]