Lupinus pusillus |
Lupinus adsurgens |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
intermountain lupine, low lupine, rusty lupine |
Drew's silky lupine |
|||||||||
| Habit | Herbs, annual, 0.5–2 dm, sparsely pubescent to pilose, hairs more than 1 mm. | Herbs, perennial, 2–6 dm, hairy, silver to dull green. | ||||||||
| Stems | short and tufted or erect, branched from base or near middle. |
decumbent, ascending, or erect, unbranched or branched. |
||||||||
| Leaves | cauline, often crowded near base; stipules well developed; petiole 1–9 cm; leaflets 5–9, blades 10–40 × 5–10 mm, adaxial surface glabrous. |
cauline; stipules not leaflike, green to silvery, 5–17 mm; petiole 2–6 cm; leaflets 6–9, blades 20–50 × 3–7 mm, widest above middle, adaxial surface pubescent, appressed-hairy to ± silky or dull green. |
||||||||
| Racemes | 8–12-flowered, 2–11 cm, shorter than or slightly exceeding foliage; flowers spirally arranged. |
2–23 cm; flowers spirally arranged to subwhorled. |
||||||||
| Peduncles | 0–3.5 cm; bracts persistent, straight, 2–5 mm. |
2–8 cm; bracts deciduous, 2–8 mm. |
||||||||
| Pedicels | 1–3.5 mm. |
2–6 mm. |
||||||||
| Flowers | 5–12 mm; calyx abaxial lobe entire, 5–6 mm, adaxial lobe cleft, 2.5–4 mm; corolla vivid blue, sometimes paler or white, sometimes bicolored, banner spot white or yellowish, keel glabrous. |
9–12 mm; calyx bulge or spur 0–1 mm, abaxial lobe entire or minutely 3-toothed, 3–7 mm, adaxial lobe 2-toothed, 4–6.5 mm; corolla pale yellowish to lavender or violet, banner patch yellow to white, banner glabrous abaxially, keel upcurved, glabrous, banner ovate, wings wide, covering keel tip. |
||||||||
| Legumes | 1.5 cm, constricted between seeds, thinly pilose to coarsely hirsute. |
2–4 cm, silky. |
||||||||
| Cotyledons | persistent, disclike, sessile. |
deciduous, petiolate. |
||||||||
| Seeds | 2, wrinkled or ridged. |
3–6, mottled brown, 4–6 mm. |
||||||||
| 2n | = 48. |
|||||||||
Lupinus pusillus |
Lupinus adsurgens |
|||||||||
| Phenology | Flowering May–Jul. | |||||||||
| Habitat | Dry slopes, montane forests. | |||||||||
| Elevation | 500–3500 m. [1600–11500 ft.] | |||||||||
| Distribution |
w North America; c North America
|
CA; OR
|
||||||||
| Discussion | Varieties 3 (3 in the flora). Lupinus pusillus is a highly variable species, with the varieties intergrading. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus adsurgens is found in the San Francisco Bay region and North Coast Ranges of California, north to southern Oregon (Josephine County), and throughout the Sierra Nevada. All parts of Lupinus adsurgens are toxic, causing crooked neck disease in cattle (A. M. Davis 1982). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||||||
| Parent taxa | ||||||||||
| Sibling taxa | ||||||||||
| Subordinate taxa | ||||||||||
| Key |
|
|||||||||
| Synonyms | L. adsurgens var. lilacinus, L. adsurgens var. undulatus, L. alcis-montis, L. aliceae, L. arvensiplasketti, L. brandegeei, L. debilis, L. klamathensis, L. lilacinus, L. pendeltonii | |||||||||
| Name authority | Pursh: Fl. Amer. Sept. 2: 468. 1814[1813] | Drew: Bull. Torrey Bot. Club 16: 150. (1889) | ||||||||
| Source | FNA vol. 11. | FNA vol. 11. | ||||||||
| Web links | ||||||||||