Lathyrus vestitus |
Lathyrus hitchcockianus |
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canyon pea, common Pacific pea, Pacific pea, Pacific peavine, Pacific vetchling, wild sweetpea |
bullfrog mountain pea, Grapevine Mountains. pea, Hitchcock's sweet pea |
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Habit | Herbs perennial, from rhizome, glabrous or sparsely to densely pubescent. | Herbs perennial, from rhizome, sparsely pubescent. | ||||||||
Stems | angled to narrowly winged, sprawling or climbing, basally branched 0–4 times, 2–20 dm. |
angled, erect or sprawling, basally branched 3–5 times, 1–3 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. |
3–4 cm; tendrils well developed; stipules linear, 5–10 × 1–2 mm, much smaller than leaflets; leaflets 4 or 6, paired, blades linear, 15–50 × 1–5 mm, surfaces sparsely pubescent. |
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Inflorescences | 5–20-flowered, 5–25 cm. |
2 or 3-flowered, 3–6 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. |
8–10 mm; calyx lobes unequal, lateral lobes deltate, shorter than tube; corolla lilac to purple, banner erect, blade longer than claw, wings equal to keel; ovary glabrous. |
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Legumes | 40–60 × 4–7 mm. |
40–70 × 4–9 mm. |
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Lathyrus vestitus |
Lathyrus hitchcockianus |
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Phenology | Flowering Apr–May. | |||||||||
Habitat | Washes in sagebrush or pinyon-juniper woodlands. | |||||||||
Elevation | 1200–2100 m. (3900–6900 ft.) | |||||||||
Distribution |
w United States; nw Mexico
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CA; NV |
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Discussion | Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lathyrus hitchcockianus is known only from the Bullfrog Hills and Yucca Mountain in Nye County, Nevada, and the Grapevine Mountains of adjacent Inyo County, California. (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) | Barneby & Reveal: Aliso 7: 362. (1971) | ||||||||
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