Arabis purpurascens T.J.Howell ex Greene Dataset Update on the Brassicaceae Species Checklist Rank SPECIES Published in Howell, T.J. ex Greene, E.L. Pittonia 1: 161. (1888). Classification family Brassicaceae genus Arabis species Arabis oregana Name Homonyms Arabis purpurascens T.J.Howell ex Greene