Lupinus brevicaulis |
Lupinus huachucanus |
|
---|---|---|
sand lupine, short stem blue lupine, short-stem lupine |
Huachuca Mountain lupine |
|
Habit | Herbs, annual, usually less than 1 dm, pubescent, hairs more than 1 mm. | Herbs, perennial (often with annual aspect), 0.1–2 dm, conspicuously pilose, from taproot. |
Stems | very short, tufted, branched. |
prostrate to decumbent, clustered, acaulescent or short-spreading and 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. |
mostly near base, in a rosette; stipules 4–10 mm; petiole 1–9 cm; leaflets 5–7(or 8), blades 10–55 × 4–12 mm, adaxial surface greenish, surfaces copiously villous-hirsute with long, spreading hairs, abaxially more dense. |
Racemes | dense, 3–16-flowered, 1–8 cm; flowers spirally arranged, crowded. |
6–23 cm; flowers spirally arranged. |
Peduncles | 1–8(–10) cm; bracts persistent, straight, 2–3 mm. |
3–4.5 cm; bracts deciduous, 4–8 mm. |
Pedicels | 0.3–1.5 mm. |
1–4 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. |
7–13 mm; calyx bulge or spur 0–1 mm, lobes entire, 5–7.5 mm; corolla violet-blue, banner yellow toward center, tip of keel purple, wings yellow toward center, banner glabrous abaxially, upper keel margins ciliate to densely ciliate. |
Legumes | not undulate, 1 cm, thinly pilose to coarsely hirsute. |
1.5–2 cm, hispid. |
Cotyledons | persistent, disclike, sessile. |
deciduous, petiolate. |
Seeds | 1 or 2, smooth. |
3–5, dark with light spots. |
Lupinus brevicaulis |
Lupinus huachucanus |
|
Phenology | Flowering spring. | Flowering Mar–May. |
Habitat | Sandy washes, open areas, grasslands, pinyon pine-juniper forests, creosote bush scrub, mesquite. | Desert mountains, pine woodlands, canyons along trails. |
Elevation | 300–2400 m. (1000–7900 ft.) | 1500–2000(–2100) m. (4900–6600(–6900) ft.) |
Distribution |
AZ; CA; CO; NM; NV; OR; UT; WY; Mexico (Chihuahua, Sonora)
|
AZ; Mexico (Chihuahua, Durango, Sonora) |
Discussion | Lupinus brevicaulis resembles L. flavoculatus except that its flowers are smaller. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus huachucanus occurs in the Santa Rita Mountains in Santa Cruz County, Chiricahua and Huachuca mountains in Cochise County, and in Pima County. Lupinus huachucanus somewhat resembles L. concinnus but is readily distinguished by its spreading habit, racemes surpassing the foliage, violet-blue corollas, and ciliate keel. Lupinus concinnus is an annual with a more erect habit, pink corollas, and a non-ciliate keel. (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. platanophilus | |
Name authority | S. Watson: Botany (Fortieth Parallel), 53, plate 7, figs. 1–4. (1871) | M. E. Jones: Contr. W. Bot. 12: 10. (1908) |
Web links |