Lupinus latifolius |
Lupinus tidestromii |
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broad-leaf lupine |
clover lupine, Tidestrom's lupine |
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Habit | Herbs, perennial, 3–24 dm, not fleshy, green, glabrous or hairy. | Herbs, perennial, 1–3 dm, white-shaggy-hairy; sometimes weakly rhizomatous. | ||||||||||||||||
Stems | erect or spreading, branched or unbranched. |
± prostrate, branched, weak. |
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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 8–12 mm; petiole 1–3 cm; leaflets 3–5, blades 5–20 × 2–5 mm, adaxial surface sericeous. |
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Racemes | 16–60 cm; flowers whorled or spirally arranged. |
open, 2–10 cm; flowers whorled. |
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Peduncles | 8–20 cm; bracts deciduous, 8–12 mm. |
4–8 cm; bracts deciduous, 4–5 mm. |
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Pedicels | 2–12 mm. |
3–5 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. |
11–13 mm; calyx 5–6 mm, bulge or spur 0–1 mm, abaxial lobe entire or notched, adaxial lobe deeply notched; corolla light blue to lavender, banner patch white to yellow turning violet, banner glabrous abaxially, lower keel margins glabrous, adaxial margin ciliate claw to tip. |
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Legumes | 2–4.5 cm, ± densely hairy. |
2–3 cm, shaggy. |
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Cotyledons | deciduous, petiolate. |
deciduous, petiolate. |
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Seeds | 6–10, mottled dark brown, 3–4 mm. |
5–8, tan, mottled brown, 3–4 mm. |
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Lupinus latifolius |
Lupinus tidestromii |
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Phenology | Flowering Apr–Jun. | |||||||||||||||||
Habitat | Dunes, beaches. | |||||||||||||||||
Elevation | 0–100 m. [0–300 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 tidestromii is known from coastal areas of Marin, Monterey, and Sonoma counties. Shaggier plants from the northern North Coast geographic region of California have been called var. layneae, commonly known as the Point Reyes lupine. (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. layneae, L. littoralis var. layneae, L. tidestromii var. layneae | ||||||||||||||||
Name authority | J. Agardh: Syn. Lupini, 18. (1835) | Greene: Erythea 3: 17. (1895) | ||||||||||||||||
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