Lathyrus venosus |
Lathyrus torreyi |
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bushy vetchling, veiny pea, veiny peavine |
redwood pea, Torrey's pea, Torrey's peavine |
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Habit | Herbs perennial, from rhizome, glabrous or pubescent. | Herbs perennial, from rhizome, finely villous. | ||||||||
Stems | angled, sprawling or climbing, basally branched 0–3 times, 4–10 dm. |
angled, erect to sprawling, basally branched 0–3 times, 1–4 dm. |
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Leaves | 6–18 cm; tendrils well developed; stipules lanceolate to linear, 10–20 × 2–10 mm, much smaller than distal leaflets (less than 1/4 width of distal leaflets); leaflets 8–14, scattered, blades ovate to lanceolate, 25–70 × 10–35 mm, surfaces glabrous or pubescent. |
2–7 cm; tendrils absent or mucronate; stipules lanceolate, 7–12 × 2–5 mm, much smaller than leaflets; leaflets 8–16, scattered, blades ovate to lanceolate, 5–15 × 3–10 mm, surfaces villous. |
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Inflorescences | 5–20-flowered, 6–20 cm. |
1- or 2-flowered, 0.5–3 cm. |
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Flowers | 10–15 mm; calyx lobes unequal, lateral lobes linear-triangular or lanceolate, shorter to longer than tube; corolla blue-purple to rose, banner erect, blade equal to claw, wings equal to keel; ovary glabrous or pubescent. |
8–12 mm; calyx lobes unequal, lateral lobes linear-triangular, longer than tube; corolla blue-purple, banner erect, blade equal to claw, wings longer than keel; ovary densely pubescent. |
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Legumes | 20–50 × 3–7 mm. |
15–20 × 4–5 mm. |
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2n | = 14. |
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Lathyrus venosus |
Lathyrus torreyi |
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Phenology | Flowering Apr–Jul. | |||||||||
Habitat | Open coniferous forests. | |||||||||
Elevation | 50–1500 m. (200–4900 ft.) | |||||||||
Distribution |
North America
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CA; OR; WA
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Discussion | Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lathyrus torreyi is known from in and west of the Cascade Range; it is very rare in Washington. (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 | Muhlenberg ex Willdenow: Sp. Pl. 3: 1092. (1802) | A. Gray: Proc. Amer. Acad. Arts 7: 337. (1868) | ||||||||
Web links |
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