Lupinus latifolius |
Lupinus excubitus |
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broad-leaf lupine |
grape lupine, grape soda lupine, guard lupine |
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Habit | Herbs, perennial, 3–24 dm, not fleshy, green, glabrous or hairy. | Shrubs, 10–20 dm, densely silver appressed-hairy. | ||||||||||||||||
Stems | erect or spreading, branched or unbranched. |
erect, 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 5–20 mm; petiole 4–10 cm; leaflets 7–9, blades 5–50 × 4–7 mm, adaxial surface densely pubescent, silver-hairy. |
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Racemes | 16–60 cm; flowers whorled or spirally arranged. |
10–70 cm, rachis persistent; flowers whorled or not. |
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Peduncles | 8–20 cm; bracts deciduous, 8–12 mm. |
7–20 cm; bracts deciduous, 8–9 mm. |
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Pedicels | 2–12 mm. |
4–6 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. |
with distinctive sweet smell, 10–13 mm; calyx 6–8 mm, bulge or spur 0–1 mm, abaxial lobe entire or 3-toothed, adaxial lobe deeply notched; corolla violet to lavender, banner patch bright yellow, turning purple, banner usually hairy abaxially, keel usually ± lobed proximally, abaxial margins glabrous, adaxial margin ciliate middle to tip. |
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Legumes | 2–4.5 cm, ± densely hairy. |
3–5 cm, silky. |
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Cotyledons | deciduous, petiolate. |
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Seeds | 6–10, mottled dark brown, 3–4 mm. |
5–8, mottled yellow-brown with lateral lines. |
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Coty | -ledons deciduous, petiolate. |
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Lupinus latifolius |
Lupinus excubitus |
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Phenology | Flowering Apr–Jun. | |||||||||||||||||
Habitat | Desert slopes, washes. | |||||||||||||||||
Elevation | (700–)1200–2700 m. [(2300–)3900–8900 ft.] | |||||||||||||||||
Distribution |
w North America; nw Mexico
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CA; Mexico (Baja California)
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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 excubitus is known from Inyo to San Bernardino counties in the Mojave Desert, desert mountains, and southern Sierra Nevada east of the crest (transmontane). Circumscriptions of Lupinus excubitus have been diverse. See discussion under 32. L. albifrons, under which many varieties now have been treated as synonyms. (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 | ||||||||||||||||||
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Synonyms | L. rivularis var. latifolius | |||||||||||||||||
Name authority | J. Agardh: Syn. Lupini, 18. (1835) | M. E. Jones: Contr. W. Bot. 8: 26. (1898) | ||||||||||||||||
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