Lupinus brevicaulis |
Lupinus fulcratus |
|
---|---|---|
sand lupine, short stem blue lupine, short-stem lupine |
green stipuled lupine, greenstipule lupine |
|
Habit | Herbs, annual, usually less than 1 dm, pubescent, hairs more than 1 mm. | Herbs, perennial, 3–8 dm, green, spreading-hairy. |
Stems | very short, tufted, branched. |
erect, unbranched or 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. |
cauline; stipules green, leaflike, lanceolate, 6–30 mm; petiole 3–6 cm; leaflets 6–9, blades 20–60 × 4–8 mm, adaxial surface pubescent. |
Racemes | dense, 3–16-flowered, 1–8 cm; flowers spirally arranged, crowded. |
3–20 cm; flowers ± whorled. |
Peduncles | 1–8(–10) cm; bracts persistent, straight, 2–3 mm. |
1–11 cm; bracts deciduous, 4–10 mm. |
Pedicels | 0.3–1.5 mm. |
2–7 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. |
10–14 mm; calyx bulge or spur 0–1 mm, abaxial lobe entire or 3-toothed, 5–12 mm, adaxial lobe 2-toothed, 5–10 mm; corolla blue, banner patch white, banner glabrous abaxially, keel upcurved, usually glabrous, sparsely hairy near middle of adaxial margin. |
Legumes | not undulate, 1 cm, thinly pilose to coarsely hirsute. |
2–4 cm, silky. |
Cotyledons | persistent, disclike, sessile. |
deciduous, petiolate. |
Seeds | 1 or 2, smooth. |
2–6, beige, mottled brown, 4–5 mm. |
Lupinus brevicaulis |
Lupinus fulcratus |
|
Phenology | Flowering spring. | Flowering May–Sep. |
Habitat | Sandy washes, open areas, grasslands, pinyon pine-juniper forests, creosote bush scrub, mesquite. | In mixed conifer forests, on granitic soils. |
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 fulcratus is found at higher elevations in the Sierra Nevada. It closely resembles L. andersonii except for the leaflike stipules. Lupinus ionewalkerae C. P. Smith, L. lingulae C. P. Smith, and L. cymbaegressus C. P. Smith may be hybrids with L. andersonii (P. A. Munz 1959). (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. fulcratus, L. andersonii var. fulcratus, L. beaneanus, L. finitus, L. fraxinetorum | |
Name authority | S. Watson: Botany (Fortieth Parallel), 53, plate 7, figs. 1–4. (1871) | Greene: Pittonia 3: 159. (1897) |
Web links |