Lupinus brevicaulis |
Lupinus succulentus |
|
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sand lupine, short stem blue lupine, short-stem lupine |
arroyo lupine, hollowleaf annual lupine, succulent lupine |
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Habit | Herbs, annual, usually less than 1 dm, pubescent, hairs more than 1 mm. | Herbs, annual, sometimes persisting more than one season, (1–)2–10 dm, fleshy, sparsely pubescent. |
Stems | very short, tufted, branched. |
ascending or erect, branched or unbranched, usually succulent. |
Leaves | cauline, crowded near base; stipules well developed; petiole 1–6 cm; leaflets (3 or)5–9, blades 8–20 × 2–9 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. |
Racemes | dense, 3–16-flowered, 1–8 cm; flowers spirally arranged, crowded. |
15–25 cm; flowers whorled. |
Peduncles | 1–8(–10) cm; bracts persistent, straight, 2–3 mm. |
5–9 cm; bracts deciduous, 3–5 mm. |
Pedicels | 0.3–1.5 mm. |
3–7 mm. |
Flowers | 6–8 mm; calyx abaxial lobe entire or shallowly cleft, ± 6 mm, adaxial lobe 2-toothed, 3 mm, less than 1/2 as long as abaxial; corolla bright blue, banner spot white or yellow, keel glabrous. |
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. |
Legumes | not undulate, 1 cm, thinly pilose to coarsely hirsute. |
3.5–5 cm, coarsely pubescent to tomentose. |
Cotyledons | persistent, disclike, sessile. |
deciduous, petiolate. |
Seeds | 1 or 2, smooth. |
6–9. |
2n | = 48. |
|
Lupinus brevicaulis |
Lupinus succulentus |
|
Phenology | Flowering spring. | Flowering late winter–late spring (Feb–May). |
Habitat | Sandy washes, open areas, grasslands, pinyon pine-juniper forests, creosote bush scrub, mesquite. | Open or disturbed areas, roadbanks. |
Elevation | 300–2400 m. (1000–7900 ft.) | 0–1300 m. (0–4300 ft.) |
Distribution |
AZ; CA; CO; NM; NV; OR; UT; WY; Mexico (Chihuahua, Sonora)
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AZ; CA; Mexico (Baja California, Baja California Sur)
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Discussion | Lupinus brevicaulis resembles L. flavoculatus except that its flowers are smaller. (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.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | L. succulentus var. brandegeei, L. succulentus var. layneae | |
Name authority | S. Watson: Botany (Fortieth Parallel), 53, plate 7, figs. 1–4. (1871) | Douglas ex K. Koch: Wochenschr. Vereines Beford. Gartenbaues Konigl. Preuss. Staaten 4: 277. (1861) |
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