Lupinus brevicaulis |
Lupinus elmeri |
|
---|---|---|
sand lupine, short stem blue lupine, short-stem lupine |
Elmer's lupine, south fork mountain lupine |
|
Habit | Herbs, annual, usually less than 1 dm, pubescent, hairs more than 1 mm. | Herbs, perennial, 6–9 dm, green, hairy. |
Stems | very short, tufted, branched. |
erect, branched distally, emerging from ground stout, red. |
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 6–20 mm; petiole 1–7 cm; leaflets 6–8(–10), blades (15–)38–61 × 8–13 mm, adaxial surface green, ± puberulent to short-villous. |
Racemes | dense, 3–16-flowered, 1–8 cm; flowers spirally arranged, crowded. |
15–20 cm; flowers not whorled. |
Peduncles | 1–8(–10) cm; bracts persistent, straight, 2–3 mm. |
3–9 cm; bracts ± persistent, 7–14 mm (conspicuously longer than buds). |
Pedicels | 0.3–1.5 mm. |
2–6 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. |
8–14 mm; calyx bulge or spur 0–1 mm, abaxial lobe 3-toothed, 6–10 mm, adaxial lobe notched, 7–9 mm; corolla pale yellow, banner glabrous abaxially, keel upcurved, glabrous. |
Legumes | not undulate, 1 cm, thinly pilose to coarsely hirsute. |
2.5–5 cm, hairy. |
Cotyledons | persistent, disclike, sessile. |
deciduous, petiolate. |
Seeds | 1 or 2, smooth. |
3–6. |
Lupinus brevicaulis |
Lupinus elmeri |
|
Phenology | Flowering spring. | Flowering Jun–Jul. |
Habitat | Sandy washes, open areas, grasslands, pinyon pine-juniper forests, creosote bush scrub, mesquite. | Open areas in red fir forests. |
Elevation | 300–2400 m. (1000–7900 ft.) | (1300–)1500–2000 m. ((4300–)4900–6600 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 elmeri is known from South Fork Mountain in Humboldt and Trinity counties. (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. sylvestris, L. albicaulis var. sylvestris | |
Name authority | S. Watson: Botany (Fortieth Parallel), 53, plate 7, figs. 1–4. (1871) | Greene: Pittonia 3: 159. (1897) |
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