Lupinus latifolius |
Lupinus gracilentus |
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broad-leaf lupine |
green slender lupine, slender lupine |
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Habit | Herbs, perennial, 3–24 dm, not fleshy, green, glabrous or hairy. | Herbs, perennial, 2–8 dm, green, puberulent to hairy. | ||||||||||||||||
Stems | erect or spreading, branched or unbranched. |
erect or slightly spreading, clustered, unbranched or branched distally. |
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Leaves | cauline, basal when present withered by anthesis; stipules 5–10 mm; petiole 4–20 cm; leaflets 5–11, blades 40–100 × 6–24 mm, abaxial surface ± hairy, adaxial surface glabrous or hairy. |
cauline; stipules 10–15 mm; proximal petioles (3–)5–14 cm, distal ones (1–)2–4 cm; leaflets 5–8, blades 35–80 × 2–5 mm, adaxial surface pubescent. |
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Racemes | 16–60 cm; flowers whorled or spirally arranged. |
6–20 cm; flowers in 4–8 distinct whorls. |
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Peduncles | 8–20 cm; bracts deciduous, 8–12 mm. |
6–12 cm; bracts semideciduous, 4–10 mm. |
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Pedicels | 2–12 mm. |
2–4 mm. |
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Flowers | 8–18 mm; calyx abaxial lobe entire or notched, 4–8 mm, adaxial lobe entire or 2-toothed, 5–10 mm; corolla blue or purple to white, banner patch usually white to yellowish turning purple, banner glabrous abaxially, lower keel margins usually ciliate, adaxial margin ciliate from claw to middle. |
8–18 mm; calyx bulge or spur 0–1 mm, abaxial lobe 2 or 3-toothed or entire, 5–7 mm, adaxial lobe 2-toothed, 7 mm; corolla blue, banner patch white to yellowish, banner glabrous abaxially, lower keel margins glabrous, adaxial keel sparsely ciliate. |
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Legumes | 2–4.5 cm, ± densely hairy. |
2–3 cm, densely hairy. |
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Cotyledons | deciduous, petiolate. |
deciduous, petiolate. |
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Seeds | 6–10, mottled dark brown, 3–4 mm. |
6–8. |
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Lupinus latifolius |
Lupinus gracilentus |
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Phenology | Flowering Jul–Sep. | |||||||||||||||||
Habitat | Open moist sites, subalpine forests. | |||||||||||||||||
Elevation | 2500–3500 m. [8200–11500 ft.] | |||||||||||||||||
Distribution |
w North America; nw Mexico
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CA |
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Discussion | Varieties 5 (5 in the flora). Various authors have differed in their circumscriptions of Lupinus latifolius. For example, P. K. Vaughn and D. B. Dunn (1977) recognized three varieties, D. Isely (1998) recognized six varieties, and C. L. Hitchcock et al. (1955–1969, vol. 3) recognized three varieties. The most conservative approach has been taken here by recognizing taxa that have the clearest characteristics, but that approach might not reflect phylogeny. Research is needed to clarify the varieties and particularly the relationships among L. latifolius and L. arcticus, L. perennis, and L. polyphyllus. Lupinus latifolius is known to cause birth defects in livestock (R. F. Keeler et al. 1977). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus gracilentus is known from the southern Sierra Nevada (Rock Creek) in Inyo and Mono counties northward to Yosemite National Park. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 11. | FNA vol. 11. | ||||||||||||||||
Parent taxa | ||||||||||||||||||
Sibling taxa | ||||||||||||||||||
Subordinate taxa | ||||||||||||||||||
Synonyms | L. rivularis var. latifolius | |||||||||||||||||
Name authority | J. Agardh: Syn. Lupini, 18. (1835) | Greene: Proc. Acad. Nat. Sci. Philadelphia 44: 365. (1893) | ||||||||||||||||
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