Lupinus saxosus
Introduction '''''Lupinus saxosus''''' is a species of lupine known by the common name '''rock lupine'''. It is native to eastern Washington, eastern Oregon, and the northeast corner of California,where it grows in sagebrush and other habitat. It may also be native to Idaho and Nevada.
Description This is a perennial herb growing erect 20 to 30 (6-10 inches) centimeters tall. Each palmate leaf is made up of 7 to 13 hairy leaflets 1 to 4 centimeters long. Stiff long hairs are found on the undersides and edges of the leaves, with no hair on top. The inflorescence is a dense raceme of many flowers sometimes arranged in whorls. The flower is between 1 and 2 centimeters long and blue in color with a yellowish or violet patch on its banner. The fruit is a shaggy-haired legume pod up to 4 centimeters in length. The flowering time is early spring. The 8-12 leaflets have acute or rounded tips. It is shorter than most lupine species. The bloom period is between the months of May and June. You shouldn’t eat any part of the lupine. It is most commonly found between the elevations of 4,000-6,000 feet. 52.3% of the time it was found, it was found in May, and 19.8% of the time, it was found in June.
Habitat This lupine is often found in shallow rocky soils that are dry to bedrock by midsummer.
References
External links * Jepson Manual Treatment