Lathyrus vestitus |
Lathyrus decaphyllus |
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canyon pea, common Pacific pea, Pacific pea, Pacific peavine, Pacific vetchling, wild sweetpea |
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Habit | Herbs perennial, from rhizome, glabrous or sparsely to densely pubescent. | Herbs perennial, from rhizome. | ||||||||||||
Stems | angled to narrowly winged, sprawling or climbing, basally branched 0–4 times, 2–20 dm. |
angled, erect or sprawling, basally branched 0–2 times, 1.5–3 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. |
1–4 cm; tendrils bristlelike, usually less than 1 cm; stipules linear to lanceolate, 10–30 × 1–5 mm, nearly equal to leaflets; leaflets 8–12, often paired, blades lanceolate to linear, 10–35 × 1–5 mm, surfaces glabrous or pubescent. |
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Inflorescences | 5–20-flowered, 5–25 cm. |
2–6-flowered, 4–11 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. |
16–22 mm; calyx lobes subequal, lateral lobes deltate, shorter than tube; corolla usually violet to magenta, sometimes white, banner erect, blade longer than claw, wings 4–5 mm longer than keel; ovary glabrous. |
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Legumes | 40–60 × 4–7 mm. |
35–50 × 8–12 mm, stipitate. |
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Lathyrus vestitus |
Lathyrus decaphyllus |
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Distribution |
w United States; nw Mexico
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wc United States |
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Discussion | Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 2 (2 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) | Pursh: Fl. Amer. Sept. 2: 471. (1813) | ||||||||||||
Web links |
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