Lathyrus vestitus |
Lathyrus vestitus var. vestitus |
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canyon pea, common Pacific pea, Pacific pea, Pacific peavine, Pacific vetchling, wild sweetpea |
hillside pea, Pacific pea |
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Habit | Herbs perennial, from rhizome, glabrous or sparsely to densely pubescent. | |||||||||
Stems | angled to narrowly winged, sprawling or climbing, basally branched 0–4 times, 2–20 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. |
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Leaflets | blade surfaces often sparsely to densely pubescent throughout, sometimes pubescent abaxially, glabrous adaxially. |
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Inflorescences | 5–20-flowered, 5–25 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; lateral calyx lobes lanceolate or linear-triangular and equal to tube, or deltate and shorter than tube; corolla rose, lavender, or blue-purple, banner erect, blade equal to or somewhat longer than claw. |
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Legumes | 40–60 × 4–7 mm. |
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2n | = 14. |
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Lathyrus vestitus |
Lathyrus vestitus var. vestitus |
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Phenology | Flowering Apr–May. | |||||||||
Habitat | Roadside fencerows, grasslands, oak or conifer woodlands along creeks, chaparral. | |||||||||
Elevation | 0–2000 m. (0–6600 ft.) | |||||||||
Distribution |
w United States; nw Mexico
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CA; OR; Mexico (Baja California) |
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Discussion | Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
As delimited here, var. vestitus includes populations found in habitats from moist coastal coniferous forests to chaparral, from California to southwestern Oregon. Numerous attempts to describe distinctive taxa within this series of populations (R. V. Bradshaw 1925; C. L. Hitchcock 1952; S. L. Broich 1987; D. Isely 1992) have been undermined by extensive intergradation among them. (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 > Lathyrus vestitus | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | L. bolanderi, L. laetiflorus, L. laetiflorus subsp. barbarae, L. vestitus subsp. bolanderi, L. vestitus subsp. laetiflorus, L. vestitus subsp. laevicarpus, L. vestitus subsp. puberulus, L. vestitus subsp. violaceus, L. violaceus, L. violaceus var. barbarae | |||||||||
Name authority | Nuttall in J. Torrey and A. Gray: Fl. N. Amer. 1: 276. (1838) | unknown | ||||||||
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