Lathyrus lanszwertii |
Lathyrus hitchcockianus |
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aspen peavine, lanszwert's pea, lanszwert's vetchling, Nevada pea, Nevada peavine, Nevada sweet pea, pinewood peavine, Rocky Mountain sweetpea, thick-leaf pea, thick-leaf peavine |
bullfrog mountain pea, Grapevine Mountains. pea, Hitchcock's sweet pea |
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Habit | Herbs perennial, from rhizome, glabrous or sparsely pubescent. | Herbs perennial, from rhizome, sparsely pubescent. | ||||||||||||||||
Stems | angled, erect, sprawling, or climbing, basally branched 0–4 times, 1–8 dm. |
angled, erect or sprawling, basally branched 3–5 times, 1–3 dm. |
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Leaves | (0.5–)1–8 cm; tendrils mucronate to well developed; stipules linear to lanceolate, 5–25 × 1–6 mm, much smaller than leaflets; leaflets 2–10, scattered, blades lanceolate or linear, 20–70 × 2–20 mm, surfaces glabrous or sparsely 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 | 2–6-flowered, 2–10 cm. |
2 or 3-flowered, 3–6 cm. |
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Flowers | 7–15 mm; calyx lobes unequal, lateral lobes deltate, shorter than tube; corolla white or blue-purple, banner erect, blade equal to claw, wings equal to keel; ovary glabrous. |
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 | 25–45 × 6–10 mm. |
40–70 × 4–9 mm. |
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Lathyrus lanszwertii |
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 North America
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CA; NV |
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Discussion | Varieties 5 (5 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 | Kellogg: Proc. Calif. Acad. Sci. 2: 150, fig. 44. (1863) | Barneby & Reveal: Aliso 7: 362. (1971) | ||||||||||||||||
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