Lupinus brevicaulis |
Lupinus elatus |
|
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sand lupine, short stem blue lupine, short-stem lupine |
silky lupine, tall silky lupine |
|
Habit | Herbs, annual, usually less than 1 dm, pubescent, hairs more than 1 mm. | Herbs, perennial, 5–9 dm, silvery-woolly to -silky. |
Stems | very short, tufted, branched. |
ascending or erect, clustered, branched, short-silky. |
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; stipules not leaflike, green to silvery, 5–17 mm; petiole 2–5 cm; leaflets 6–8, blades 20–80 × 2–7 mm, widest below middle, adaxial surface pubescent, hairs densely silver-silky to woolly. |
Racemes | dense, 3–16-flowered, 1–8 cm; flowers spirally arranged, crowded. |
5–40 cm; flowers ± whorled. |
Peduncles | 1–8(–10) cm; bracts persistent, straight, 2–3 mm. |
2–8 cm; bracts deciduous, 6–11 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 bulge or spur 0–1 mm, abaxial lobe 3-toothed, 6–8 mm, adaxial lobe notched, 5–7 mm; corolla lavender to blue, banner patch pale yellowish, banner usually glabrous abaxially, keel upcurved, glabrous, banner ovate, wings wide, covering keel tip. |
Legumes | not undulate, 1 cm, thinly pilose to coarsely hirsute. |
2–3 cm, pubescent. |
Cotyledons | persistent, disclike, sessile. |
deciduous, petiolate. |
Seeds | 1 or 2, smooth. |
4–6, mottled olive brown, 5–6 mm. |
Lupinus brevicaulis |
Lupinus elatus |
|
Phenology | Flowering spring. | Flowering Jun–Aug. |
Habitat | Sandy washes, open areas, grasslands, pinyon pine-juniper forests, creosote bush scrub, mesquite. | Dry conifer forests. |
Elevation | 300–2400 m. (1000–7900 ft.) | 1500–3000 m. (4900–9800 ft.) |
Distribution |
AZ; CA; CO; NM; NV; OR; UT; WY; Mexico (Chihuahua, Sonora)
|
CA
|
Discussion | Lupinus brevicaulis resembles L. flavoculatus except that its flowers are smaller. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus elatus is found at high elevations in the southern Sierra Nevada and Transverse Ranges. It closely resembles L. adsurgens and L. andersonii. (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 | ||
Synonyms | L. albicaulis var. elatus, L. formosus var. elatus | |
Name authority | S. Watson: Botany (Fortieth Parallel), 53, plate 7, figs. 1–4. (1871) | I. M. Johnston: Bull. S. Calif. Acad. Sci. 17: 63. (1918) |
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