Lupinus microcarpus |
Lupinus sparsiflorus |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
chick lupine, wide-bannered lupine |
Coulter's lupine, Mojave lupine |
|||||||||
Habit | Herbs, annual, 1–8 dm, sparsely to densely pubescent. | Herbs, annual, 1.5–4 dm, strigose, hairs short and appressed, also pilose, hairs long and spreading. | ||||||||
Stems | ascending or erect, branched near base or middle, or unbranched, hollow, at least near base. |
ascending or erect, branched or unbranched. |
||||||||
Leaves | cauline; petiole 3–15 cm; leaflets 5–9(–11), blades 10–50 × 2–12 mm, adaxial surface glabrous. |
cauline; petiole (1–)3–7 cm; leaflets (5–)7–11, blades (7–)15–30(–45) × 2–5 mm, adaxial surface glabrous or pubescent, at least marginally. |
||||||||
Racemes | 4–60 cm; flowers in crowded to widely spaced whorls. |
10–25 cm; flowers spirally arranged. |
||||||||
Peduncles | 2–30 cm; bracts persistent, reflexed, 3.5–12 mm. |
2–4 cm; bracts usually deciduous, 3–5 mm, shorter than buds. |
||||||||
Pedicels | 0.5–5 mm. |
2–5 mm. |
||||||||
Flowers | 8–18 mm; calyx appendages usually absent, sometimes present, abaxial lobe 5–11 mm, adaxial lobe 2–6 mm; corolla white to dark yellow, pink to dark rose, or lavender to purple, lower wing margins sometimes ciliate, upper margins usually ciliate near claw, upper keel margins usually ciliate near claw, lower margins sometimes ciliate but not as densely. |
10–12(–13) mm; calyx 3–6 mm, lobes ± equal, abaxial lobe entire, adaxial lobe deeply cleft; corolla usually blue, rarely pinkish, drying darker, banner spot whitish becoming magenta, lower keel margins ciliate near claw, upper margins often ciliate near claw. |
||||||||
Legumes | 1–1.8 cm, pubescent. |
1–2 cm, coarsely pubescent. |
||||||||
Cotyledons | persistent or deciduous (leaving circular scar), disclike, sessile. |
deciduous, petiolate. |
||||||||
Seeds | 2, tan to brown, usually mottled, ridged or smooth. |
4 or 5. |
||||||||
Lupinus microcarpus |
Lupinus sparsiflorus |
|||||||||
Phenology | Flowering spring (Mar–May). | |||||||||
Habitat | Washes, sandy areas, chaparral, grasslands, coastal sage scrub, Joshua tree/mesquite woodlands, creosote bush scrub. | |||||||||
Elevation | 0–1500 m. (0–4900 ft.) | |||||||||
Distribution |
w North America; nw Mexico; South America
|
AZ; CA; NV; UT; Mexico (Baja California, Baja California Sur, Sonora)
|
||||||||
Discussion | Varieties 3 (3 in the flora). Lupinus microcarpus is highly variable and with varieties intergrading. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Plants from the Mojave Desert often have smaller flowers and have been named subsp. mohavensis, and those from western San Diego County with pinkish flowers and truncate leaflets have been named var. inopinatus. (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. pondii, L. sparsiflorus subsp. inopinatus, L. sparsiflorus var. inopinatus, L. sparsiflorus subsp. mohavensis, L. sparsiflorus var. mohavensis, L. sparsiflorus var. pondii | |||||||||
Name authority | Sims: Bot. Mag. 50: plate 2413. (1823) | Bentham: Pl. Hartw., 303. (1849) | ||||||||
Web links |
|