Lupinus arizonicus |
Lupinus tracyi |
|
---|---|---|
Arizona lupine |
Tracy's lupine |
|
Habit | Herbs, annual, 1–6 dm, with short-appressed and long, spreading hairs. | Herbs, perennial, 4–7 dm, glabrous, glaucous. |
Stems | erect, usually branched, sometimes unbranched. |
solitary, erect, slender, usually unbranched. |
Leaves | cauline; petiole 2–8 cm; leaflets 5–10, blades 10–40 × 4–12 mm, adaxial surface glabrous. |
cauline; stipules 7–9 mm; petiole to 1 cm; leaflets 6 or 7, blades 10–40 × 4–10 mm, adaxial surface glabrous. |
Racemes | 6–30 cm; flowers spirally arranged or appearing ± whorled proximally. |
4–16 cm; flowers ± whorled or not. |
Peduncles | 1–6 cm; bracts usually persistent, 4–8 mm. |
2–6 cm; bracts deciduous, 8–10 mm. |
Pedicels | 2–4 mm. |
5–6 mm. |
Flowers | 7–10 mm; calyx 3–6 mm, lobes ± equal, abaxial lobe entire, adaxial lobe deeply cleft; corolla banner and wings dark pink to magenta, drying blue-purple or whitish, banner spot yellowish, becoming darker magenta, lower keel margins ciliate near claw, upper margins glabrous. |
8–10(–12) mm; calyx bulge or spur 0–1 mm, abaxial lobe 3-toothed, 3–5 mm, adaxial lobe 2-toothed, 3–8 mm; corolla whitish to dull blue (at least in bud), often fading to pale yellow, banner glabrous abaxially, keel glabrous, tip sometimes exserted. |
Legumes | often secund, 1–2 cm, coarsely pubescent. |
1.5–2.5 cm, white-hairy, dark when dry. |
Cotyledons | deciduous, petiolate. |
deciduous, petiolate. |
Seeds | 4–6. |
3 or 4, 4–5 mm. |
2n | = 48. |
|
Lupinus arizonicus |
Lupinus tracyi |
|
Phenology | Flowering spring. | Flowering (May–)Jun–Jul. |
Habitat | Sandy washes, open areas. | Dry, open montane forests. |
Elevation | 0–1100 m. (0–3600 ft.) | 800–2500 m. (2600–8200 ft.) |
Distribution |
AZ; CA; NV; Mexico (Baja California, Baja California Sur, Sonora)
|
CA; OR
|
Discussion | Lupinus arizonicus occurs in the eastern Mojave and Sonora deserts of southeastern California, southwestern Arizona, and southern Nevada, plus adjacent areas in northern Mexico. Robust plants have been named var. barbatulus. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus tracyi is known from the Klamath Ranges of northern California and adjacent areas in southern Oregon. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | L. concinnus var. arizonicus, L. arizonicus var. barbatulus, L. brevior, L. concinnus var. brevior, L. sparsiflorus var. arizonicus, L. sparsiflorus var. barbatulus | |
Name authority | (S. Watson) S. Watson: Proc. Amer. Acad. Arts 12: 250. (1877) | Eastwood: Leafl. W. Bot. 2: 268. (1940) |
Web links |