Lupinus brevicaulis |
Lupinus villosus |
|
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sand lupine, short stem blue lupine, short-stem lupine |
lady lupine |
|
Habit | Herbs, annual, usually less than 1 dm, pubescent, hairs more than 1 mm. | Herbs, usually annual, sometimes biennial, robust, 2–6 dm, spreading, hairs long, shaggy, silver or tawny. |
Stems | very short, tufted, branched. |
sprawling or ascending, clustered, branched. |
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. |
basal; stipules conspicuous, 20–30 mm; petiole 3.5–9.5 cm; leaflet 1, blades 150–270 × 12–33 mm, surfaces sericeous or abaxially thinly pubescent. |
Racemes | dense, 3–16-flowered, 1–8 cm; flowers spirally arranged, crowded. |
11–25 cm; flowers whorled or spirally arranged. |
Peduncles | 1–8(–10) cm; bracts persistent, straight, 2–3 mm. |
7–9 cm; bracts deciduous, 6–15 mm. |
Pedicels | 0.3–1.5 mm. |
2–4 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. |
10–14 mm; calyx abaxial lobe entire, 10–11 mm, adaxial lobe entire, 7–9 mm; corolla lilac to reddish purple or pink, banner spot maroon, glabrous. |
Legumes | not undulate, 1 cm, thinly pilose to coarsely hirsute. |
(1.5–)2.5–4 cm, shaggy-villous. |
Cotyledons | persistent, disclike, sessile. |
deciduous, petiolate. |
Seeds | 1 or 2, smooth. |
2–4. |
2n | = 52. |
|
Lupinus brevicaulis |
Lupinus villosus |
|
Phenology | Flowering spring. | Flowering Mar–Apr. |
Habitat | Sandy washes, open areas, grasslands, pinyon pine-juniper forests, creosote bush scrub, mesquite. | Sandhills, open woods. |
Elevation | 300–2400 m. (1000–7900 ft.) | 0–50 m. (0–200 ft.) |
Distribution |
AZ; CA; CO; NM; NV; OR; UT; WY; Mexico (Chihuahua, Sonora)
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AL; FL; GA; LA; MS; NC; SC
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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.) |
In Florida, Lupinus villosus reaches as far south as Polk County. Lupinus villosus is of conservation concern in North Carolina. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Name authority | S. Watson: Botany (Fortieth Parallel), 53, plate 7, figs. 1–4. (1871) | Willdenow: Sp. Pl. 3: 1029. (1802) |
Web links |