Lupinus brevicaulis |
Lupinus hirsutissimus |
|
---|---|---|
sand lupine, short stem blue lupine, short-stem lupine |
stinging annual lupine, stinging lupine |
|
Habit | Herbs, annual, usually less than 1 dm, pubescent, hairs more than 1 mm. | Herbs, annual, 2–10 dm, with short, appressed, stiff, pustulate, stinging hairs to 3.5 mm. |
Stems | very short, tufted, branched. |
ascending or erect, branched or unbranched. |
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; petiole 4–9 cm; leaflets 5–8, blades 20–50 × 10–20 mm, adaxial surface hirsute. |
Racemes | dense, 3–16-flowered, 1–8 cm; flowers spirally arranged, crowded. |
15–40 cm; flowers spirally arranged. |
Peduncles | 1–8(–10) cm; bracts persistent, straight, 2–3 mm. |
5–8 cm; bracts usually persistent, 4–5 mm. |
Pedicels | 0.3–1.5 mm. |
2–5 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 6–10 mm, lobes ± equal, abaxial lobe entire, adaxial lobe deeply cleft; corolla deep pink to magenta, drying purplish, banner spot white becoming magenta, lower keel margins densely ciliate from middle to near claw. |
Legumes | not undulate, 1 cm, thinly pilose to coarsely hirsute. |
2–4 cm, coarsely hairy. |
Cotyledons | persistent, disclike, sessile. |
deciduous, petiolate. |
Seeds | 1 or 2, smooth. |
3–6. |
Lupinus brevicaulis |
Lupinus hirsutissimus |
|
Phenology | Flowering spring. | Flowering spring. |
Habitat | Sandy washes, open areas, grasslands, pinyon pine-juniper forests, creosote bush scrub, mesquite. | Dry, rocky areas, burns. |
Elevation | 300–2400 m. (1000–7900 ft.) | 0–1400 m. (0–4600 ft.) |
Distribution |
AZ; CA; CO; NM; NV; OR; UT; WY; Mexico (Chihuahua, Sonora)
|
CA; Mexico (Baja California)
|
Discussion | Lupinus brevicaulis resembles L. flavoculatus except that its flowers are smaller. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus hirsutissimus occurs in the central and southern coast regions into the adjacent mountains and Channel Islands. Plants are often greater than one meter in height after fires. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | Fabaceae > subfam. Faboideae > Lupinus | Fabaceae > subfam. Faboideae > Lupinus |
Sibling taxa | ||
Name authority | S. Watson: Botany (Fortieth Parallel), 53, plate 7, figs. 1–4. (1871) | Bentham: Trans. Hort. Soc. London, ser. 2, 1: 411. (1835) |
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