Astragalus whitneyi var. whitneyi |
|
---|---|
balloonpod milkvetch, Whitney's milk vetch |
|
Herbage | strigulose, hairs appressed or narrowly ascending, straight or subsinuous, (0.3–)0.4–0.6 mm. |
Stems | low and diffuse or erect (when supported by sagebrush), 5–25 cm. |
Leaves | (1.5–)3–11 cm; leaflets 9–17(or 19), blades 2–13(–15) mm. |
Racemes | (3–)5–15-flowered; axis 1–4(–4.5) cm in fruit. |
Flowers | calyx 4.5–6.4 mm, tube (3.5–)3.7–4.2(–4.7) mm, lobes 0.8–1.5(–1.8) mm; corolla lilac or pink-purple, wing tips pale or white; banner (8.3–)10–14.2(–16.5) mm. |
Legumes | 15–30(–40) × 10–18(–22) mm, glabrous; stipe 2–4.5 mm. |
Seeds | 18–30. |
2n | = 22. |
Astragalus whitneyi var. whitneyi |
|
Phenology | Flowering May–Sep. |
Habitat | Slopes and ridges at or above timberline, sagebrush valleys and foothills. |
Elevation | 2000–3700 m. (6600–12100 ft.) |
Distribution |
CA; NV |
Discussion | Ranging from the mountains of southern California through the Sierra Nevada to northwestern Nevada, the widespread var. whitneyi can usually be distinguished by its red-purple or pink-purple petals and the fruits of relatively medium size. Morphological characters overlap, and some specimens of vars. siskiyouensis and whitneyi can be distinguished only by origin. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. |
Parent taxa | |
Sibling taxa | |
Name authority | unknown |
Web links |