Lupinus latifolius |
Lupinus neomexicanus |
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broad-leaf lupine |
New Mexico lupine |
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| Habit | Herbs, perennial, 3–24 dm, not fleshy, green, glabrous or hairy. | Herbs, perennial, (3–)4–10 dm, hirsutulous or shortly pilose (green and inconspicuously hairy). | ||||||||||||||||
| Stems | erect or spreading, branched or unbranched. |
erect or ascending, few-clustered, 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 (basal not present at anthesis); stipules 4–13 mm; petiole 2.5–6 cm; leaflets 5–8, blades broadly oblanceolate, 20–40(–50) × 4–11 mm, abaxial surface appressed-hairy, adaxial surface glabrate. |
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| Racemes | 16–60 cm; flowers whorled or spirally arranged. |
4–15 cm; flowers spirally arranged or ± whorled. |
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| Peduncles | 8–20 cm; bracts deciduous, 8–12 mm. |
5–12 cm; bracts deciduous, 4–6 mm. |
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| Pedicels | 2–12 mm. |
5–8 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–)12–14 mm; calyx lobes entire, 6 mm; corolla pale lavender to reddish purple, banner spot yellow or white, banner glabrous abaxially, keel distally ciliolate. |
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| Legumes | 2–4.5 cm, ± densely hairy. |
4 × 2 cm, villous. |
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| Cotyledons | deciduous, petiolate. |
deciduous, petiolate. |
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| Seeds | 6–10, mottled dark brown, 3–4 mm. |
3–6. |
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Lupinus latifolius |
Lupinus neomexicanus |
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| Phenology | Flowering May–Sep. | |||||||||||||||||
| Habitat | Mountain meadows, canyons, oak, aspen, conifer woodlands. | |||||||||||||||||
| Elevation | 1500–2500 m. [4900–8200 ft.] | |||||||||||||||||
| Distribution |
w North America; nw Mexico
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AZ; NM; Mexico (Chihuahua, Durango, Oaxaca, Sonora)
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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 neomexicanus is known in the flora area from southeastern Arizona to Rio Arriba County in New Mexico. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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| Key |
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| Synonyms | L. rivularis var. latifolius | L. blumeri | ||||||||||||||||
| Name authority | J. Agardh: Syn. Lupini, 18. (1835) | Greene: Pittonia 4: 133. (1900) — (as neo-mexicanus) | ||||||||||||||||
| Source | FNA vol. 11. | FNA vol. 11. | ||||||||||||||||
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