Lupinus brevicaulis |
Lupinus chamissonis |
|
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sand lupine, short stem blue lupine, short-stem lupine |
beach blue lupine, Chamisso bush lupine, dune bush lupine, silver dune lupine |
|
Habit | Herbs, annual, usually less than 1 dm, pubescent, hairs more than 1 mm. | Shrubs, 5–20 dm, silver, densely appressed-hairy. |
Stems | very short, tufted, branched. |
erect or ascending, 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 8–10 mm; petiole 1–3.5 cm; leaflets 5–9, blades 10–25 × 3–6 mm, adaxial surface pubescent. |
Racemes | dense, 3–16-flowered, 1–8 cm; flowers spirally arranged, crowded. |
5–20 cm; flowers ± whorled. |
Peduncles | 1–8(–10) cm; bracts persistent, straight, 2–3 mm. |
2–6 cm; bracts deciduous, 7–10 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. |
8–16 mm; calyx bulge or spur 0–1 mm, abaxial lobe entire, 7–9 mm, adaxial lip deeply lobed, 5–7 mm; corolla light violet to blue, banner patch persistently yellow, banner densely hairy abaxially, lower keel margins ± ciliate, adaxial margins glabrous. |
Legumes | not undulate, 1 cm, thinly pilose to coarsely hirsute. |
2.5–3.5 cm, hairy. |
Cotyledons | persistent, disclike, sessile. |
deciduous, petiolate. |
Seeds | 1 or 2, smooth. |
4–8, mottled brown, 4–5 mm. |
Lupinus brevicaulis |
Lupinus chamissonis |
|
Phenology | Flowering spring. | Flowering Mar–Jul. |
Habitat | Sandy washes, open areas, grasslands, pinyon pine-juniper forests, creosote bush scrub, mesquite. | Coastal strands, dunes. |
Elevation | 300–2400 m. (1000–7900 ft.) | 0–10 m. (0–0 ft.) |
Distribution |
AZ; CA; CO; NM; NV; OR; UT; WY; Mexico (Chihuahua, Sonora)
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CA
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Discussion | Lupinus brevicaulis resembles L. flavoculatus except that its flowers are smaller. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus chamissonis is known along the immediate coast from Los Angeles to Sonoma counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Name authority | S. Watson: Botany (Fortieth Parallel), 53, plate 7, figs. 1–4. (1871) | Eschscholtz: Mém. Acad. Imp. Sci. St. Pétersbourg Hist. Acad. 10(2): 288. (1826) |
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