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Species of flowering plant in the family Violaceae From Wikipedia, the free encyclopedia
Viola praemorsa is a species of violet known by the common names canary violet,[3] Astoria violet,[4] yellow montane violet, and upland yellow violet.[5]
| Viola praemorsa | |
|---|---|
| |
| Viola praemorsa in Yellowstone National Park | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malpighiales |
| Family: | Violaceae |
| Genus: | Viola |
| Species: | V. praemorsa |
| Binomial name | |
| Viola praemorsa | |
| Synonyms[2] | |
| |
This rhizomatous perennial herb grows up to 30 centimeters in maximum height. The thick, fleshy leaf blades are lance-shaped to oval with pointed or rounded tips, the basal ones up to 8.5 centimeters long and those higher on the stem the same or slightly longer. The leaf blades are often coated densely in hairs and are borne on long petioles. A solitary flower is borne on a long, upright stem. It has five yellow petals, the lowest three veined with brownish purple, and the upper two often with brownish purple coloring on the outer surfaces.[4]
There are three subspecies:[6]
Viola praemorsa is native to western North America from British Columbia and Alberta in Canada; to Washington, Oregon, Idaho, Montana, Wyoming, Utah, California, Nevada, and Colorado in the U.S.[3] It occurs on mountain slopes, usually where forests or grassy meadows are present, in moist or dry soil.[4] In California, it often occurs in yellow-pine forests.[4] In Canada, where it is an endangered species, V. praemorsa subsp. praemorsa is associated with Garry oak ecosystems.[7][8]
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