Lupinus sulphureus |
Lupinus sulphureus var. sulphureus |
|||||
---|---|---|---|---|---|---|
Kincaid's lupine, sulfur lupine, sulphur lupine |
sulphur lupine |
|||||
Habit | Herbs, perennial, (3–)4–8(–10) dm, hairs stiff to silky-appressed, whitish, grayish, or brownish. | |||||
Stems | erect, densely tufted, unbranched distally. |
|||||
Leaves | basal and cauline, persisting until after flowering; stipules 4–8 mm; proximal petioles 4–20 cm, distal ones 1.5–5 cm; leaflets 6–15, blades white to greenish, (20–)25–70 × 4–10 mm, abaxial surface hairy-strigulose or sericeous, adaxial surface strigulose-silky to sparsely hairy or glabrous. |
leaflet blade surfaces abaxially hairy-strigulose, adaxially strigose-silky to sparsely hairy or glabrous. |
||||
Racemes | 6–20 cm; flowers whorled or spirally arranged. |
(5–)12–20 cm. |
||||
Peduncles | 2.5–6 cm; bracts tardily deciduous, 5–9 mm. |
3–5 cm. |
||||
Pedicels | (2–)4–10 mm. |
|||||
Flowers | 8–12 mm; calyx asymmetrical but not spurred, silky, abaxial lobe entire, 4–7 mm, adaxial lobe 2-fid, 3–5 mm; corolla pale sulfur yellow, blue, or white, banner glabrous or sparsely hairy abaxially (pubescence extending above calyx as a line), upper keel margins usually ciliate most of length, sometimes glabrous. |
|||||
Corollas | usually pale sulfur yellow, sometimes white to bluish. |
|||||
Legumes | 2–3 cm, pilose to silky. |
|||||
Cotyledons | deciduous, petiolate. |
|||||
Seeds | 4 or 5, pinkish brown. |
|||||
2n | = 48. |
|||||
Lupinus sulphureus |
Lupinus sulphureus var. sulphureus |
|||||
Distribution |
w North America
|
|||||
Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Flowers Apr–Aug. Prairies, sagebrush scrub, open conifer forests; 50–3000 m; B.C.; Idaho, Mont., Oreg., Wash. Variety sulphureus is known from British Columbia southward along the eastern edge of the Cascades in Washington and northeastern Oregon, eastward to Idaho and Montana. It may be found along the Columbia River to the Willamette River Valley and into southwestern Washington. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||
Key |
|
|||||
Source | FNA vol. 11. | FNA vol. 11. | ||||
Parent taxa | Fabaceae > subfam. Faboideae > Lupinus | Fabaceae > subfam. Faboideae > Lupinus > Lupinus sulphureus | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | L. sulphureus var. applegateianus, L. sulphureus var. echlerianus | |||||
Name authority | Douglas in W. J. Hooker: Fl. Bor.-Amer. 1: 166. (1832) | unknown | ||||
Web links |
|