| Family | VIOLACEAE |
| Genus species | Viola occidentalis (A.Gray) Howell sect. Viola |
| Bibliography | Fl. N.W. Amer.: 69 (1897) |
| Native Range | sw. Oregon to nw. California |
| Primary Biome | Temperate |
| Habitat | bogs, marshes |
| Altitude | 100-500m |
| Description | acaulescent, leaves elliptic to narrowly ovate, on base attenuate, glabrous or sparsely pubescent, crenulate, mucronulate, flowers solitary, pedunculate, striate |
| Size | 5-20cm |
| Color | white |
| Bloom | spring |
| Ca | |
| Type | perennial |
| Cultivation | very moist to boggy, semi-shady site alpine house, moist, humous, gravelly soil, semi-shade |
| Propagation | seed in winter, barely covered, germ. 1-3 months, 13-16°C division after flowering and in fall |
| Synonyms | Viola lanceolata ssp. occidentalis (A.Gray) N.H.Russell Viola primulifolia var. occidetalis A.Gray Viola primulifolia ssp. occidentalis (A.Gray) L.E.McKinney & R.J.Little |
| Territory | 7 Northern America 73 Northwestern U.S.A. (ORE Oregon) 76 Southwestern U.S.A. (CAL California) |