Lathyrus vestitus |
Lathyrus nevadensis |
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canyon pea, common Pacific pea, Pacific pea, Pacific peavine, Pacific vetchling, wild sweetpea |
purple peavine, Sierra Nevada pea, Sierra Nevada sweet pea, Sierra pea, Sierra peavine |
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Habit | Herbs perennial, from rhizome, glabrous or sparsely to densely pubescent. | Herbs perennial, from rhizome, pubescent except glabrous on legumes and leaflets adaxially. | ||||||||||||||||
Stems | angled to narrowly winged, sprawling or climbing, basally branched 0–4 times, 2–20 dm. |
angled, erect, sprawling, or climbing, basally branched 0–several times, 1–6 dm. |
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Leaves | 4–14 cm; tendrils well developed; stipules lanceolate to linear, 5–25 × 1–10 mm, much smaller than leaflets (more than 1/4 width of distal leaflets); leaflets 6–12, scattered, blades ovate to linear, 12–50 × 5–25 mm, surfaces glabrous or pubescent. |
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 | 5–20-flowered, 5–25 cm. |
2–10-flowered, 3–15 cm. |
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Flowers | 12–25 mm; calyx lobes unequal, lateral lobes deltate, linear-triangular, or lanceolate and wider distal to base, shorter to longer than tube; corolla cream-white, rose, lavender, blue-purple, or deep wine red, banner erect or reflexed toward calyx tube, blade equal to or longer than claw, wings equal to keel; ovary glabrous or pubescent. |
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 | 40–60 × 4–7 mm. |
20–30(–45) × 5–10 mm. |
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Lathyrus vestitus |
Lathyrus nevadensis |
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Distribution |
w United States; nw Mexico
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w North America
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Discussion | Varieties 3 (3 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 | Nuttall in J. Torrey and A. Gray: Fl. N. Amer. 1: 276. (1838) | S. Watson: Proc. Amer. Acad. Arts 11: 133. (1876) | ||||||||||||||||
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