Lathyrus vestitus |
Lathyrus grimesii |
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canyon pea, common Pacific pea, Pacific pea, Pacific peavine, Pacific vetchling, wild sweetpea |
grimes' pea, grimes' vetchling |
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Habit | Herbs perennial, from rhizome, glabrous or sparsely to densely pubescent. | Herbs perennial, from rhizomelike rootstock, glabrous. | ||||||||
Stems | angled to narrowly winged, sprawling or climbing, basally branched 0–4 times, 2–20 dm. |
angled, erect, branched 0–2 times basally or from proximal nodes, 0.5–2 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. |
1–2 cm; tendrils reduced to bristles; stipules lanceolate to linear, 5–15 × 1–5 mm, much smaller than leaflets; leaflets 4 or 6, paired, blades ovate to obovate, 10–25 × 5–10 mm, surfaces glabrous. |
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Inflorescences | 5–20-flowered, 5–25 cm. |
2–4-flowered, 4–6 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. |
14–17 mm; calyx lobes unequal, lateral lobes deltate, shorter than tube; corolla bicolored lavender and white, banner erect, blade longer than claw, wings longer than keel, 1–3 mm; ovary glabrous. |
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Legumes | 40–60 × 4–7 mm. |
25–30 × 8–10 mm, stipitate. |
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Lathyrus vestitus |
Lathyrus grimesii |
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Phenology | Flowering Jun–Jul. | |||||||||
Habitat | Talus slopes in sagebrush communities. | |||||||||
Elevation | 1800–2600 m. (5900–8500 ft.) | |||||||||
Distribution |
w United States; nw Mexico
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NV |
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Discussion | Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lathyrus grimesii is known only from the northern Independence Range and southern Bull Run Mountains in Elko County. (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 in A. Cronquist et al.: Intermount. Fl. 3(B): 208, plate [p. 211], fig. s.n. [center right]. (1989) | ||||||||
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