| Family | VIOLACEAE |
| Genus species | Viola rugulosa Greene sect. Viola |
| Bibliography | Pittonia 5: 26 (1902) |
| Native Range | Subarctic America to w. & c. USA |
| Primary Biome | Temperate |
| Habitat | thickets and woods |
| Altitude | 300-2600m |
| Description | basal leaves petiolate, broadly ovate to ovate-reniform, cordate, crenate, stipules lanceolate or deltate, entire, acuminate, flowers solitary, pedicellate |
| Size | 10-40cm |
| Color | white |
| Bloom | late spring, summer |
| Ca | |
| Type | perennial |
| Cultivation | cold, shady site with a humous, moist soil alpine house, moist, humous soil, shade |
| Propagation | seed in winter, barely covered, germ. 1-3 months, 13-16°C division after flowering and in fall |
| Synonyms | Lophion rugulosum (Greene) Lunell Lophion rydbergii (Greene) Nieuwl. & Lunell Viola canadensis var. neomexicana (Greene) House Viola canadensis var. rugulosa (Greene) C.L.Hitchc. Viola canadensis ssp. rydbergii (Greene) House Viola canadensis var. rydbergii (Greene) House Viola geminiflora Greene Viola muriculata Greene Viola neomexicana Greene Viola rydbergii Greene |
| Territory | 7 Northern America 70 Subarctic America (ASK Alaska, NWT Northwest Territories, YUK Yukon) 71 Western Canada (ABT Alberta, BRC British Columbia, MAN Manitoba, SAS Saskatchewan) 72 Eastern Canada (ONT Ontario) 73 Northwestern U.S.A. (COL Colorado, IDA Idaho, MNT Montana, ORE Oregon, WYO Wyoming) 74 North-Central U.S.A. (ILL Illinois, IOW Iowa, MIN Minnesota, NDA North Dakota, NEB Nebraska, SDA South Dakota, WIS Wisconsin) 76 Southwestern U.S.A. (ARI Arizona, UTA Utah) 77 South-Central U.S.A. (NWM New Mexico) |