Lupinus microcarpus |
Lupinus succulentus |
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chick lupine, wide-bannered lupine |
arroyo lupine, hollowleaf annual lupine, succulent lupine |
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Habit | Herbs, annual, 1–8 dm, sparsely to densely pubescent. | Herbs, annual, sometimes persisting more than one season, (1–)2–10 dm, fleshy, sparsely pubescent. | ||||||||
Stems | ascending or erect, branched near base or middle, or unbranched, hollow, at least near base. |
ascending or erect, branched or unbranched, usually succulent. |
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Leaves | cauline; petiole 3–15 cm; leaflets 5–9(–11), blades 10–50 × 2–12 mm, adaxial surface glabrous. |
cauline, may be crowded at base on new growth; petiole 6–15 cm; leaflets 7–9, blades 20–60 × 7–20 mm, adaxial surface glabrous. |
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Racemes | 4–60 cm; flowers in crowded to widely spaced whorls. |
15–25 cm; flowers whorled. |
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Peduncles | 2–30 cm; bracts persistent, reflexed, 3.5–12 mm. |
5–9 cm; bracts deciduous, 3–5 mm. |
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Pedicels | 0.5–5 mm. |
3–7 mm. |
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Flowers | 8–18 mm; calyx appendages usually absent, sometimes present, abaxial lobe 5–11 mm, adaxial lobe 2–6 mm; corolla white to dark yellow, pink to dark rose, or lavender to purple, lower wing margins sometimes ciliate, upper margins usually ciliate near claw, upper keel margins usually ciliate near claw, lower margins sometimes ciliate but not as densely. |
12–18 mm; calyx 4–7 mm, lobes ± equal, abaxial lobe entire, adaxial lobe cleft; corolla usually blue-purple, rarely white, lavender, or pink, banner spot white, becoming magenta, upper wing margins ciliate near claw, lower and upper keel margins ciliate near claw. |
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Legumes | 1–1.8 cm, pubescent. |
3.5–5 cm, coarsely pubescent to tomentose. |
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Cotyledons | persistent or deciduous (leaving circular scar), disclike, sessile. |
deciduous, petiolate. |
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Seeds | 2, tan to brown, usually mottled, ridged or smooth. |
6–9. |
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2n | = 48. |
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Lupinus microcarpus |
Lupinus succulentus |
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Phenology | Flowering late winter–late spring (Feb–May). | |||||||||
Habitat | Open or disturbed areas, roadbanks. | |||||||||
Elevation | 0–1300 m. (0–4300 ft.) | |||||||||
Distribution |
w North America; nw Mexico; South America
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AZ; CA; Mexico (Baja California, Baja California Sur)
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Discussion | Varieties 3 (3 in the flora). Lupinus microcarpus is highly variable and with varieties intergrading. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus succulentus occurs widely throughout California except in the Great Basin and desert regions and extends into northern Mexico; it is introduced in Arizona. It may occasionally persist more than one season in Californian North Coast locations. (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 | Fabaceae > subfam. Faboideae > Lupinus | Fabaceae > subfam. Faboideae > Lupinus | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | L. succulentus var. brandegeei, L. succulentus var. layneae | |||||||||
Name authority | Sims: Bot. Mag. 50: plate 2413. (1823) | Douglas ex K. Koch: Wochenschr. Vereines Beford. Gartenbaues Konigl. Preuss. Staaten 4: 277. (1861) | ||||||||
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