Lupinus brevicaulis |
Lupinus nevadensis |
|
---|---|---|
sand lupine, short stem blue lupine, short-stem lupine |
Nevada lupine |
|
Habit | Herbs, annual, usually less than 1 dm, pubescent, hairs more than 1 mm. | Herbs, perennial, 1–4 dm, long-hairy. |
Stems | very short, tufted, branched. |
erect, tufted, 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. |
basal and cauline; stipules 8–10 mm; basal petioles to 14 cm, cauline to 4 cm; leaflets 6–10, blades 20–50 × 4–6 mm, adaxial surface pubescent. |
Racemes | dense, 3–16-flowered, 1–8 cm; flowers spirally arranged, crowded. |
5–17 cm; flowers spirally arranged. |
Peduncles | 1–8(–10) cm; bracts persistent, straight, 2–3 mm. |
3–6 cm; bracts deciduous, 4–5 mm. |
Pedicels | 0.3–1.5 mm. |
4–8 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. |
10–12 mm; calyx bulge or spur 0–1 mm, abaxial lobe 3-toothed, 4–5 mm, adaxial lobe 2-toothed, 3–4 mm; corolla blue, banner patch white to yellowish, banner glabrous abaxially, keel strongly upcurved, lower keel margins glabrous, adaxial margin ciliate. |
Legumes | not undulate, 1 cm, thinly pilose to coarsely hirsute. |
2.5–4 cm, densely hairy. |
Cotyledons | persistent, disclike, sessile. |
deciduous, petiolate. |
Seeds | 1 or 2, smooth. |
3–4. |
Lupinus brevicaulis |
Lupinus nevadensis |
|
Phenology | Flowering spring. | Flowering Apr–Aug. |
Habitat | Sandy washes, open areas, grasslands, pinyon pine-juniper forests, creosote bush scrub, mesquite. | Hillsides, valleys, with sage-brush, Great Basin scrub, pinyon-juniper woodlands. |
Elevation | 300–2400 m. (1000–7900 ft.) | 1000–3000 m. (3300–9800 ft.) |
Distribution |
AZ; CA; CO; NM; NV; OR; UT; WY; Mexico (Chihuahua, Sonora)
|
CA; NV; OR
|
Discussion | Lupinus brevicaulis resembles L. flavoculatus except that its flowers are smaller. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus nevadensis is found in Lassen, Mono, and northern Inyo counties in eastern California, Washoe County southward to Mineral County in western Nevada, and Harney County in southern Oregon. (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) | A. Heller: Muhlenbergia 6: 107, fig. 17. (1910) |
Web links |