Lathyrus eucosmus |
Lathyrus cicera |
|
---|---|---|
bush vetchling, seemly pea |
red pea, red peavine, red vetch or pea |
|
Habit | Herbs perennial, from rhizome, glabrous or puberulent. | Herbs annual, glabrous. |
Stems | angled, erect, basally branched 0–2 times, 2–5 dm. |
winged, sprawling or climbing, basally branched 0–3 times, 2–10 dm. |
Leaves | 2–4 cm; tendrils simple or branched, sometimes prehensile; stipules linear, 5–15 × 1–2 mm, much smaller than leaflets; leaflets 6 or 8, scattered, blades ovate to lanceolate, 15–45 × 4–10 mm, surfaces glabrous throughout or puberulent abaxially. |
0.5–2 cm, rachises winged as the stem; tendrils well developed; stipules lanceolate, 10–20 × 2–6 mm, sometimes as wide as leaflets; leaflets 2, blades linear, 20–50 × 1–6 mm, surfaces glabrous. |
Inflorescences | 2–4-flowered, 7–12 cm. |
usually 1-flowered, 1–4 cm. |
Flowers | 18–20 mm; calyx lobes unequal, lateral lobes deltate, shorter than tube; corolla blue-purple, banner erect, blade longer than claw, wings equal to keel (held above keel); ovary glabrous. |
10–12 mm; calyx lobes equal, lateral lobes linear-triangular, 2–3 times longer than tube; corolla reddish purple, banner erect, blade equal to claw, wings equal to keel; ovary glabrous, style rotated 90° from ovary axis. |
Legumes | 40–50 × 8–10 mm, short-stipitate. |
20–40 × 5–10 mm, broadly winged on abaxial suture. |
2n | = 14. |
= 14. |
Lathyrus eucosmus |
Lathyrus cicera |
|
Phenology | Flowering Apr–Jun. | Flowering Apr–May. |
Habitat | Dry soils in washes, pinyon-juniper woodlands, oak-brush, ponderosa pine forests, open prairies, grasslands. | Disturbed areas. |
Elevation | 1200–2500 m. (3900–8200 ft.) | 50–600 m. (200–2000 ft.) |
Distribution |
AZ; CO; NM; TX; UT; WY; Mexico (Coahuila)
|
CA; Europe [Introduced in North America; introduced also in South America (Argentina, Uruguay)] |
Discussion | Lathyrus eucosmus is known from the northern two-thirds of Arizona northward to southeastern Utah, and eastward in southeastern Wyoming, Colorado, New Mexico, and Texas to the edge of the Great Plains. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lathyrus cicera is cultivated as an ornamental and occasionally escapes. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | Fabaceae > subfam. Faboideae > Lathyrus | Fabaceae > subfam. Faboideae > Lathyrus |
Sibling taxa | ||
Synonyms | L. brachycalyx subsp. eucosmus, L. brachycalyx var. eucosmus | |
Name authority | Butters & H. St. John: Rhodora 19: 160. (1917) | Linnaeus: Sp. Pl. 2: 730. (1753) |
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