Lathyrus vestitus |
Lathyrus cicera |
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canyon pea, common Pacific pea, Pacific pea, Pacific peavine, Pacific vetchling, wild sweetpea |
red pea, red peavine, red vetch or pea |
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Habit | Herbs perennial, from rhizome, glabrous or sparsely to densely pubescent. | Herbs annual, glabrous. | ||||||||
Stems | angled to narrowly winged, sprawling or climbing, basally branched 0–4 times, 2–20 dm. |
winged, sprawling or climbing, basally branched 0–3 times, 2–10 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. |
0.5–2 cm, rachises winged as the stem; tendrils well developed; stipules lanceolate, 10–20 × 2–6 mm, sometimes as wide as leaflets; leaflets 2, blades linear, 20–50 × 1–6 mm, surfaces glabrous. |
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Inflorescences | 5–20-flowered, 5–25 cm. |
usually 1-flowered, 1–4 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. |
10–12 mm; calyx lobes equal, lateral lobes linear-triangular, 2–3 times longer than tube; corolla reddish purple, banner erect, blade equal to claw, wings equal to keel; ovary glabrous, style rotated 90° from ovary axis. |
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Legumes | 40–60 × 4–7 mm. |
20–40 × 5–10 mm, broadly winged on abaxial suture. |
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2n | = 14. |
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Lathyrus vestitus |
Lathyrus cicera |
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Phenology | Flowering Apr–May. | |||||||||
Habitat | Disturbed areas. | |||||||||
Elevation | 50–600 m. (200–2000 ft.) | |||||||||
Distribution |
w United States; nw Mexico
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CA; Europe [Introduced in North America; introduced also in South America (Argentina, Uruguay)] |
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Discussion | Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lathyrus cicera is cultivated as an ornamental and occasionally escapes. (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) | Linnaeus: Sp. Pl. 2: 730. (1753) | ||||||||
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