| Family | VIOLACEAE |
| Genus species | Viola venosa (S.Watson) Rydb. |
| Bibliography | Mem. New York Bot. Gard. 1: 262 (1900) |
| Native Range | s. British Columbia to w. USA |
| Primary Biome | Subalpine |
| Habitat | rocky slopes |
| Altitude | 1300-3400m |
| Description | basal leaves petiolate, orbiculate or ovate, truncate, irregularly dentate, adaxially glabrous, stem leaves lanceolate, flowers solitary, pedicellate, striate, 2-4cm |
| Size | 5-12cm |
| Color | yellow |
| Bloom | spring, summer |
| Ca | |
| Type | perennial |
| Cultivation | rock crevices with favourable water regime, eastern slopes alpine house, poor, drained soil, shading in summer |
| Propagation | seed in winter, barely covered, germ. 1-3 months, 13-16°C division after flowering and in fall |
| Synonyms | Viola atriplicifolia Greene Viola atriplicifolia var. thorii (A.Nelson) A.Nelson Viola aurea var. venosa (S.Watson) S.Watson Viola nuttallii var. venosa S.Watson Viola praemorsa var. venosa (S.Watson) A.Gray Viola purpurea ssp. atriplicifolia (Greene) M.S.Baker & J.C.Clausen Viola purpurea var. atriplicifolia (Greene) M.Peck Viola purpurea var. venosa (S.Watson) Brainerd Viola purpurea ssp. venosa (S.Watson) M.S.Baker & J.C.Clausen Viola thorii A.Nelson |
| Territory | 7 Northern America 71 Western Canada (BRC British Columbia) 73 Northwestern U.S.A. (COL Colorado, IDA Idaho, MNT Montana, ORE Oregon, WAS Washington) 76 Southwestern U.S.A. (ARI Arizona, CAL California, NEV Nevada, UTA Utah) |