| Family | OXALIDACEAE |
| Genus species | Oxalis oregana Nutt. |
| Bibliography | Fl. N. Amer. [J.Torrey & A.Gray] 1: 211 (1838) |
| Native Range | w. British Columbia to California |
| Primary Biome | Temperate |
| Habitat | thickets and woods |
| Altitude | 10-800m |
| Description | basal leaves long petiolate, trifoliolate, leaflets obcordate, adaxially glabrous, abaxially subhirsute, flowers solitary, openly campanulate, with yellow throat |
| Size | 5-10cm |
| Color | pinkish red, white |
| Bloom | spring |
| Ca | |
| Type | perennial |
| Cultivation | cold, shady site with a humous, moist soil alpine house, moist, humous soil, shade |
| Propagation | seed in spring, germ. 1-3 months 18-21°C division in early spring and fall; cuttings in late summer |
| Synonyms | Acetosella oregana (Nutt.) Kuntze Oxalis acetosella var. oregana (Nutt.) Trel. Oxalis acetosella ssp. oregana (Nutt.) D.Löve Oxalis oregana var. tracyi Jeps. Oxys oregana (Nutt.) Greene |
| Territory | 7 Northern America 71 Western Canada (BRC British Columbia) 73 Northwestern U.S.A. (ORE Oregon, WAS Washington) 76 Southwestern U.S.A. (CAL California) |