Lathyrus brachycalyx |
Lathyrus nevadensis |
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Bonneville pea, Bonneville peavine, Bonneville vetchling, Rydberg's peavine |
purple peavine, Sierra Nevada pea, Sierra Nevada sweet pea, Sierra pea, Sierra peavine |
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Habit | Herbs perennial, from rhizome, glabrous or villous. | Herbs perennial, from rhizome, pubescent except glabrous on legumes and leaflets adaxially. | ||||||||||||
Stems | angled, erect, sprawling, or climbing, basally branched 0–3 times, 1–5 dm. |
angled, erect, sprawling, or climbing, basally branched 0–several times, 1–6 dm. |
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Leaves | 2–9 cm; tendrils usually well developed, sometimes reduced to a single bristle; stipules lanceolate, 5–12 × 1–3 mm, much smaller than leaflets; leaflets 6–12, scattered, blades elliptic to narrowly so, 8–70 × 3–8 mm, surfaces glabrous or villous. |
2–10 cm; tendrils mucronate (less than 1 cm) to well developed; stipules linear, 5–25 × 1–8 mm, much smaller than leaflets; leaflets 4–12, usually scattered, blades broadly ovate to lanceolate or linear, (17–)20–110 × 2–30(–37) mm, surfaces usually glabrous, rarely finely pubescent. |
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Inflorescences | 2–5-flowered, 5–15 cm. |
2–10-flowered, 3–15 cm. |
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Flowers | 13–20 mm; calyx lobes unequal, lateral lobes deltate, shorter than tube; corolla pinkish to deep blue-purple, banner erect, blade nearly 2 times as long as claw, wings equal to keel; ovary glabrous. |
12–22 mm; calyx lobes unequal, lateral lobes deltate, usually shorter than tube; corolla blue-purple to pink-purple or white, banner erect, blade longer than claw, wings equal to keel; ovary glabrous. |
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Legumes | 30–40 × 6–8 mm. |
20–30(–45) × 5–10 mm. |
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Lathyrus brachycalyx |
Lathyrus nevadensis |
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Distribution |
w United States
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w North America
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Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 11. | FNA vol. 11. | ||||||||||||
Parent taxa | Fabaceae > subfam. Faboideae > Lathyrus | Fabaceae > subfam. Faboideae > Lathyrus | ||||||||||||
Sibling taxa | ||||||||||||||
Subordinate taxa | ||||||||||||||
Name authority | Rydberg: Bull. Torrey Bot. Club 34: 425. (1907) | S. Watson: Proc. Amer. Acad. Arts 11: 133. (1876) | ||||||||||||
Web links |