| Family | BRASSICACEAE |
| Genus species | Cardamine douglassii Britton |
| Bibliography | Trans. New York Acad. Sci. 9: 8 (1889) |
| Native Range | nc. & e. USA |
| Primary Biome | Temperate |
| Habitat | thickets and woods |
| Altitude | 50-400m |
| Description | hirsute, lower leaves simple, petiolate, orbiculate, sinuate or entire, stem leaves 3-6, oblong, flowers in raceme, sepals oblong, petals 8-13mm long, siliques linear |
| Size | 10-25cm |
| Color | rose, purple |
| Bloom | spring |
| Ca | |
| Type | perennial |
| Cultivation | cold, shady site with a humous, moist soil alpine house, moist, humous soil, shade |
| Propagation | seed in spring, barely covered, germ. 1 month, 10-16°C division in fall; cuttings in late summer |
| Synonyms | Arabis rhomboidea var. purpurea Torr. Cardamine douglassii f. albidula Farw. Cardamine rhomboidea f. purpurea (Torr.) O.E.Schulz Cardamine rhomboidea var. purpurea (Torr.) Torr. Dentaria douglassii (Britton) Greene Thlaspi tuberosum Nutt. |
| Territory | 7 Northern America 74 North-Central U.S.A. (ILL Illinois, IOW Iowa, MIN Minnesota, MSO Missouri, WIS Wisconsin) 75 Northeastern U.S.A. (CNT Connecticut, INI Indiana, MAS Masachusettes, MIC Michigan, NWJ New Jersey, NWY New York, OHI Ohio, PEN Pennsylvania, WVA West Virginia) 78 Southeastern U.S.A. (ALA Alabama, KTY Kentucky, MRY Maryland, NCA North Carolina, SCA South Carolina, TEN Tennessee, VRG Virginia, WDC District of Columbia) |