Lupinus brevicaulis |
Lupinus nootkatensis |
|||||
---|---|---|---|---|---|---|
sand lupine, short stem blue lupine, short-stem lupine |
Nootka lupine |
|||||
Habit | Herbs, annual, usually less than 1 dm, pubescent, hairs more than 1 mm. | Herbs, perennial, (1–)4–10(–12) dm, hairs appressed to spreading, sparse to dense; caudex subterranean, woody. | ||||
Stems | very short, tufted, branched. |
ascending to erect, clustered, unbranched or branched, sometimes thick, hollow. |
||||
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 1–8 cm; proximal petioles 3–8.5 cm, distal ones 2–7 cm; leaflets 5–8(–15), blades (10–)20–50(–70) × 5–15 mm, abaxial surface long-villous, adaxial surface usually glabrous or glabrate. |
||||
Racemes | dense, 3–16-flowered, 1–8 cm; flowers spirally arranged, crowded. |
1.8–30 cm; flowers in 1–15 whorls. |
||||
Peduncles | 1–8(–10) cm; bracts persistent, straight, 2–3 mm. |
(1–)4–9.5 cm; bracts deciduous, 1–5 mm. |
||||
Pedicels | 0.3–1.5 mm. |
1–8 cm. |
||||
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. |
11–21 mm; calyx bulge or spur 0–1 mm, abaxial lobe entire or deeply lobed, 6–12 mm, adaxial lobe 2-lobed or cleft less than 1/3 length, 6–8 mm; corolla usually bluish purple, sometimes pink, rarely white, banner glabrous abaxially, adaxial keel glabrous or densely ciliate along most of adaxial edge. |
||||
Legumes | not undulate, 1 cm, thinly pilose to coarsely hirsute. |
3–6 cm, silky. |
||||
Cotyledons | persistent, disclike, sessile. |
deciduous, petiolate. |
||||
Seeds | 1 or 2, smooth. |
7–11. |
||||
Lupinus brevicaulis |
Lupinus nootkatensis |
|||||
Phenology | Flowering spring. | |||||
Habitat | Sandy washes, open areas, grasslands, pinyon pine-juniper forests, creosote bush scrub, mesquite. | |||||
Elevation | 300–2400 m. (1000–7900 ft.) | |||||
Distribution |
AZ; CA; CO; NM; NV; OR; UT; WY; Mexico (Chihuahua, Sonora)
|
n North America; Europe; Atlantic Islands (Iceland)
|
||||
Discussion | Lupinus brevicaulis resembles L. flavoculatus except that its flowers are smaller. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||
Key |
|
|||||
Source | FNA vol. 11. | FNA vol. 11. | ||||
Parent taxa | Fabaceae > subfam. Faboideae > Lupinus | Fabaceae > subfam. Faboideae > Lupinus | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | L. perennis var. nootkatensis | |||||
Name authority | S. Watson: Botany (Fortieth Parallel), 53, plate 7, figs. 1–4. (1871) | Donn ex Sims: Bot. Mag. 32: plate 1311. (1810) | ||||
Web links |