Lupinus shockleyi |
Lupinus oreganus |
|
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desert lupine, purple desert lupine, Shockley lupine |
Kincaid's lupine, Oregon lupine |
|
Habit | Herbs, annual, 0.4–3 dm, canescent, hairs 0.6–1 mm. | Herbs, perennial, 3–10 dm, appressed-silky, green but sometimes hair is tawny; rhizomatous. |
Stems | erect or ascending, very short, tufted or spreading, branched. |
erect, usually unbranched. |
Leaves | cauline, crowded near base; stipules well developed; petiole 2–9 cm; leaflets 7–11, blades 10–30 × 4–10 mm, adaxial surface glabrous. |
cauline (few and large) and basal (persistent until after anthesis); stipules 11 mm; petiole 5–20 cm; leaflets (7–)9–11(or 12), blades 20–50(–80) × 5–12 mm, abaxial surface with long, appressed hairs, especially on margins and veins, adaxial surface usually glabrous. |
Racemes | several–many-flowered, 3–14 cm; flowers spirally arranged. |
loose, 11–40 cm; flowers spirally arranged or whorled. |
Peduncles | 1–10 cm; bracts persistent, straight, 2–4 mm. |
11–18 cm; bracts deciduous, 5 mm. |
Pedicels | 1–4 mm. |
5–12 mm. |
Flowers | 4.5–7 mm; calyx 3–6 mm, lobes ± equal, abaxial lobe entire, adaxial lobe cleft; corolla dark blue-purple or whitish with blue tip, banner spot white becoming yellow, keel blunt, glabrous. |
fragrant, 8–13 mm; calyx bulge or spur 0–1 mm, abaxial lobe entire, 6 mm, adaxial lobe notched, 4–6 mm; corolla blue to purple, yellowish, or creamy white, banner distinctly ruffled, markedly concave on lateral face, banner glabrous or sparsely pubescent abaxially, wings glabrous, keel curved upward, lower keel margins glabrous, adaxial margin glabrous. |
Legumes | undulate, 1.5–2 cm, not constricted between seeds, ciliate with long, dense hairs, sides with short, inflated hairs becoming scaly on drying. |
2–3 cm, glabrous. |
Cotyledons | persistent, disclike, sessile. |
deciduous, petiolate. |
Seeds | 2, wrinkled. |
4 or 5. |
2n | = 48. |
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Lupinus shockleyi |
Lupinus oreganus |
|
Phenology | Flowering spring (Apr–Jun). | Flowering Apr–Jun. |
Habitat | Dunes, sandy areas, washes, playas. | Dry hills, open ground, rocky, well-drained soils, sometimes serpentine, upland prairies, ecotones between grasslands and forests. |
Elevation | 0–1500 m. (0–4900 ft.) | 70–900 m. (200–3000 ft.) |
Distribution |
AZ; CA; NV
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OR; WA
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Discussion | Lupinus shockleyi occurs in the desert areas of southern California, adjacent areas of southern Nevada, and northwestern Arizona. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus oreganus is known from west of the Cascades from Douglas County, Oregon, northward to Lewis County in Washington. Historically, it was found in British Columbia in Victoria on Vancouver Island but has not been seen there since the 1920s and is now considered extirpated there. Lupinus oreganus is a food plant for Fender’s Blue Butterfly, listed by ESA as endangered. Lupinus oreganus (as var. kincaidii) is listed as endangered in Washington. It is also listed as extirpated by the Committee on the Status of Endangered Wildlife in Canada and the Species at Risk Act. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | Fabaceae > subfam. Faboideae > Lupinus | Fabaceae > subfam. Faboideae > Lupinus |
Sibling taxa | ||
Synonyms | L. oreganus var. kincaidii, L. sulphureus var. kincaidii | |
Name authority | S. Watson: Proc. Amer. Acad. Arts 22: 470. (1887) | A. Heller: Muhlenbergia 7: 89, fig. 14. (1911) |
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