Lathyrus vestitus |
Lathyrus odoratus |
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canyon pea, common Pacific pea, Pacific pea, Pacific peavine, Pacific vetchling, wild sweetpea |
common sweet pea, gesse odorante, sweet pea, sweet vetchling |
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Habit | Herbs perennial, from rhizome, glabrous or sparsely to densely pubescent. | Herbs annual, glabrous or sparsely pubescent. | ||||||||
Stems | angled to narrowly winged, sprawling or climbing, basally branched 0–4 times, 2–20 dm. |
broadly winged, climbing, basally branched 1–3 times, 8–30 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. |
2–6 cm, rachises winged; tendrils well developed; stipules lanceolate, 10–25 × 2–6 mm, smaller than leaflets; leaflets 2, blades ovate or obovate, 15–50 × 10–40 mm, surfaces glabrous or sparsely pustulose-hirsute. |
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Inflorescences | 5–20-flowered, 5–25 cm. |
2–4-flowered, 10–20 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. |
20–25 mm; calyx lobes equal, lateral lobes linear-triangular to lanceolate, equal to tube; corolla white, pink, purple, violet, or blue, banner erect, blade much longer than claw, wings longer than keel; ovary densely pustulose-hirsute, style rotated 90° from ovary axis. |
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Legumes | 40–60 × 4–7 mm. |
50–70 × 8–15 mm. |
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2n | = 14. |
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Lathyrus vestitus |
Lathyrus odoratus |
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Phenology | Flowering Apr–May. | |||||||||
Habitat | Disturbed areas. | |||||||||
Elevation | 50–400 m. (200–1300 ft.) | |||||||||
Distribution |
w United States; nw Mexico
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AZ; CA; CT; IL; IN; KY; ME; MI; OH; OK; SC; TN; TX; VA; WV; MB; NF; ON; QC; Europe [Introduced in North America; introduced also in Mexico (México), Asia (China, India), n, e Africa, Pacific Islands (New Zealand), Australia]
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Discussion | Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lathyrus odoratus is cultivated as an ornamental and is an occasional escape. (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: 732. (1753) | ||||||||
Web links |
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