Lupinus latifolius |
Lupinus fulcratus |
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broad-leaf lupine |
green stipuled lupine, greenstipule lupine |
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Habit | Herbs, perennial, 3–24 dm, not fleshy, green, glabrous or hairy. | Herbs, perennial, 3–8 dm, green, spreading-hairy. | ||||||||||||||||
Stems | erect or spreading, branched or unbranched. |
erect, unbranched or branched. |
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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 green, leaflike, lanceolate, 6–30 mm; petiole 3–6 cm; leaflets 6–9, blades 20–60 × 4–8 mm, adaxial surface pubescent. |
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Racemes | 16–60 cm; flowers whorled or spirally arranged. |
3–20 cm; flowers ± whorled. |
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Peduncles | 8–20 cm; bracts deciduous, 8–12 mm. |
1–11 cm; bracts deciduous, 4–10 mm. |
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Pedicels | 2–12 mm. |
2–7 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. |
10–14 mm; calyx bulge or spur 0–1 mm, abaxial lobe entire or 3-toothed, 5–12 mm, adaxial lobe 2-toothed, 5–10 mm; corolla blue, banner patch white, banner glabrous abaxially, keel upcurved, usually glabrous, sparsely hairy near middle of adaxial margin. |
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Legumes | 2–4.5 cm, ± densely hairy. |
2–4 cm, silky. |
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Cotyledons | deciduous, petiolate. |
deciduous, petiolate. |
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Seeds | 6–10, mottled dark brown, 3–4 mm. |
2–6, beige, mottled brown, 4–5 mm. |
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Lupinus latifolius |
Lupinus fulcratus |
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Phenology | Flowering May–Sep. | |||||||||||||||||
Habitat | In mixed conifer forests, on granitic soils. | |||||||||||||||||
Elevation | 1500–3000 m. [4900–9800 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 fulcratus is found at higher elevations in the Sierra Nevada. It closely resembles L. andersonii except for the leaflike stipules. Lupinus ionewalkerae C. P. Smith, L. lingulae C. P. Smith, and L. cymbaegressus C. P. Smith may be hybrids with L. andersonii (P. A. Munz 1959). (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 | L. albicaulis var. fulcratus, L. andersonii var. fulcratus, L. beaneanus, L. finitus, L. fraxinetorum | ||||||||||||||||
Name authority | J. Agardh: Syn. Lupini, 18. (1835) | Greene: Pittonia 3: 159. (1897) | ||||||||||||||||
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