Lupinus antoninus |
Lupinus fulcratus |
|
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Anthony Peak lupine |
green stipuled lupine, greenstipule lupine |
|
Habit | Herbs, perennial, 2–5 dm, gray- to silvery-hairy. | Herbs, perennial, 3–8 dm, green, spreading-hairy. |
Stems | decumbent-erect, branched. |
erect, unbranched or branched. |
Leaves | cauline; stipules not leaflike, green to silvery, 10–12 mm; petiole 1–2 cm; leaflets 6 or 7, blades 15–25 × 3–7 mm, adaxial surface pubescent. |
cauline; stipules green, leaflike, lanceolate, 6–30 mm; petiole 3–6 cm; leaflets 6–9, blades 20–60 × 4–8 mm, adaxial surface pubescent. |
Racemes | open, 4–20 cm; flowers spirally arranged. |
3–20 cm; flowers ± whorled. |
Peduncles | 1–4 cm; bracts semideciduous, 7–8 mm. |
1–11 cm; bracts deciduous, 4–10 mm. |
Pedicels | 3–4 mm. |
2–7 mm. |
Flowers | 12–14 mm; calyx bulge or spur 0–1 mm, abaxial lobe 3-toothed, 6–8 mm, adaxial lobe 2-toothed, 6–8 mm; corolla white, banner patch turning tawny, banner glabrous abaxially, keel upcurved, glabrous, banner ovate, wings wide, covering keel tip. |
10–14 mm; calyx bulge or spur 0–1 mm, abaxial lobe entire or 3-toothed, 5–12 mm, adaxial lobe 2-toothed, 5–10 mm; corolla blue, banner patch white, banner glabrous abaxially, keel upcurved, usually glabrous, sparsely hairy near middle of adaxial margin. |
Legumes | 2.5–3.5 cm, silky. |
2–4 cm, silky. |
Cotyledons | deciduous, petiolate. |
deciduous, petiolate. |
Seeds | 4 or 5, mottled brown, 7–11 mm. |
2–6, beige, mottled brown, 4–5 mm. |
Lupinus antoninus |
Lupinus fulcratus |
|
Phenology | Flowering Jun–Jul. | Flowering May–Sep. |
Habitat | Open fir forests. | In mixed conifer forests, on granitic soils. |
Elevation | ca. 2000 m. (ca. 6600 ft.) | 1500–3000 m. (4900–9800 ft.) |
Distribution |
CA |
CA
|
Discussion | Lupinus antoninus is known only from the type locality on the southwestern slope of Anthony Peak in Mendocino County. The habit and pubescence resemble those of L. adsurgens, but the larger white flowers, the large seeds, and thick stems differentiate it morphologically. According to M. Conrad (1980), it also has different alkaloids. This taxon has not been seen since 1995 and may be extirpated. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus fulcratus is found at higher elevations in the Sierra Nevada. It closely resembles L. andersonii except for the leaflike stipules. Lupinus ionewalkerae C. P. Smith, L. lingulae C. P. Smith, and L. cymbaegressus C. P. Smith may be hybrids with L. andersonii (P. A. Munz 1959). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | L. adsurgens var. lilacinus | L. albicaulis var. fulcratus, L. andersonii var. fulcratus, L. beaneanus, L. finitus, L. fraxinetorum |
Name authority | Eastwood: Leafl. W. Bot. 3: 202. (1943) | Greene: Pittonia 3: 159. (1897) |
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