Lupinus brevicaulis |
Lupinus onustus |
|
---|---|---|
sand lupine, short stem blue lupine, short-stem lupine |
northern lupine, Plumas lupine |
|
Habit | Herbs, annual, usually less than 1 dm, pubescent, hairs more than 1 mm. | Herbs, perennial, 2–3 dm, green, silky; rhizomatous, from slender underground rootstock. |
Stems | very short, tufted, branched. |
short-decumbent, clustered, 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, clustered near base; stipules 8–10 mm; petiole (5–)8–13 cm; leaflets 5–9, blades oblanceolate, 15–50 × 4–10 mm, abaxial surface silky-hairy, adaxial surface glabrous. |
Racemes | dense, 3–16-flowered, 1–8 cm; flowers spirally arranged, crowded. |
5–15 cm; flowers not whorled. |
Peduncles | 1–8(–10) cm; bracts persistent, straight, 2–3 mm. |
4–8 cm; bracts deciduous, 3–4 mm. |
Pedicels | 0.3–1.5 mm. |
3–5 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. |
8–11 mm; calyx bulge or spur 0–1 mm, abaxial lobe entire, 3.5–6 mm, adaxial lobe 2-toothed, 2–5 mm; corolla violet, banner glabrous abaxially, lower keel margins glabrous, adaxial margin ciliate. |
Legumes | not undulate, 1 cm, thinly pilose to coarsely hirsute. |
3–4.5 cm, hairy. |
Cotyledons | persistent, disclike, sessile. |
deciduous, petiolate. |
Seeds | 1 or 2, smooth. |
5 or 6, brown, 6–7 mm. |
Lupinus brevicaulis |
Lupinus onustus |
|
Phenology | Flowering spring. | Flowering Apr–Sep. |
Habitat | Sandy washes, open areas, grasslands, pinyon pine-juniper forests, creosote bush scrub, mesquite. | Dry banks, yellow pine forests, serpentine soils. |
Elevation | 300–2400 m. (1000–7900 ft.) | 500–2000 m. (1600–6600 ft.) |
Distribution |
AZ; CA; CO; NM; NV; OR; UT; WY; Mexico (Chihuahua, Sonora)
|
CA; OR
|
Discussion | Lupinus brevicaulis resembles L. flavoculatus except that its flowers are smaller. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus onustus is known in California from the southern Cascade Range, Klamath Ranges, and northern Sierra Nevada, to the Siskiyou Mountains of southwestern Oregon. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | L. alilatissimus, L. mucronulatus, L. oreganus var. pusillulus, L. pinetorum, L. sulphureus subsp. delnortensis, L. thompsonianus, L. violaceus | |
Name authority | S. Watson: Botany (Fortieth Parallel), 53, plate 7, figs. 1–4. (1871) | S. Watson: Proc. Amer. Acad. Arts 11: 127. (1876) |
Web links |