Lathyrus nevadensis |
Lathyrus venosus |
|||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
purple peavine, Sierra Nevada pea, Sierra Nevada sweet pea, Sierra pea, Sierra peavine |
bushy vetchling, veiny pea, veiny peavine |
|||||||||||||||||
Habit | Herbs perennial, from rhizome, pubescent except glabrous on legumes and leaflets adaxially. | Herbs perennial, from rhizome, glabrous or pubescent. | ||||||||||||||||
Stems | angled, erect, sprawling, or climbing, basally branched 0–several times, 1–6 dm. |
angled, sprawling or climbing, basally branched 0–3 times, 4–10 dm. |
||||||||||||||||
Leaves | 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. |
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. |
||||||||||||||||
Inflorescences | 2–10-flowered, 3–15 cm. |
5–20-flowered, 6–20 cm. |
||||||||||||||||
Flowers | 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. |
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. |
||||||||||||||||
Legumes | 20–30(–45) × 5–10 mm. |
20–50 × 3–7 mm. |
||||||||||||||||
Lathyrus nevadensis |
Lathyrus venosus |
|||||||||||||||||
Distribution |
w North America
|
North America
|
||||||||||||||||
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.) |
||||||||||||||||
Key |
|
|
||||||||||||||||
Source | FNA vol. 11. | FNA vol. 11. | ||||||||||||||||
Parent taxa | Fabaceae > subfam. Faboideae > Lathyrus | Fabaceae > subfam. Faboideae > Lathyrus | ||||||||||||||||
Sibling taxa | ||||||||||||||||||
Subordinate taxa | ||||||||||||||||||
Name authority | S. Watson: Proc. Amer. Acad. Arts 11: 133. (1876) | Muhlenberg ex Willdenow: Sp. Pl. 3: 1092. (1802) | ||||||||||||||||
Web links |