Lathyrus venosus |
Lathyrus sulphureus |
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bushy vetchling, veiny pea, veiny peavine |
Brewer's sweet or snub or sulfur pea, Brewer's sweet pea, snub pea, sulfur pea, sulpher pea, sulphur pea |
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Habit | Herbs perennial, from rhizome, glabrous or pubescent. | Herbs perennial, from rhizome, usually glabrous, rarely pubescent. | ||||||||||||
Stems | angled, sprawling or climbing, basally branched 0–3 times, 4–10 dm. |
angled, climbing, basally branched 0–3 times, 5–15 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. |
9–12 cm; tendrils well developed; stipules lanceolate, 15–25 × 4–10 mm, sometimes equal to distal leaflets; leaflets 6–12, scattered, blades ovate to lanceolate, 25–50 × 10–20 mm, surfaces glabrous or pubescent. |
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Inflorescences | 5–20-flowered, 6–20 cm. |
9–15-flowered, 6–10 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. |
11–13 mm; calyx lobes unequal, lateral lobes deltate to lanceolate, shorter than tube; corolla orange to yellow-cream, banner erect, blade shorter than claw, wings equal to keel; ovary glabrous. |
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Legumes | 20–50 × 3–7 mm. |
40–70 × 4–6 mm. |
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Lathyrus venosus |
Lathyrus sulphureus |
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Distribution |
North America
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w 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 | Muhlenberg ex Willdenow: Sp. Pl. 3: 1092. (1802) | W. H. Brewer ex A. Gray: Proc. Amer. Acad. Arts 7: 399. (1868) | ||||||||||||
Web links |