Lathyrus graminifolius |
|
---|---|
grass-leaf pea |
|
Habit | Herbs perennial, from rhizome or woody rootstock, glabrous. |
Stems | angled, sprawling or climbing, sometimes branched at flowering nodes, 2–6 dm. |
Leaves | 5–9 cm; tendrils usually well developed; stipules lanceolate to linear, 8–12 × 1–5 mm, much smaller than leaflets; leaflets 4–8, scattered, blades usually linear, rarely lanceolate, 30–80 × 1–20 mm, surfaces glabrous. |
Inflorescences | 5–8-flowered, 10–18 cm. |
Flowers | 8–15 mm; calyx lobes subequal, lateral lobes deltate, shorter than tube; corolla white to blue-orchid, banner erect, blade equal to claw, wings equal to keel; ovary glabrous. |
Legumes | 30–50 × 4–8 mm. |
2n | = 14. |
Lathyrus graminifolius |
|
Phenology | Flowering Apr–Aug. |
Habitat | Slopes of ponderosa pine, mixed conifer, spruce-fir and oak-juniper forests. |
Elevation | 1000–2800 m. (3300–9200 ft.) |
Distribution |
AZ; NM; TX; Mexico (Chihuahua, Sonora)
|
Discussion | Lathyrus graminifolius is known from the eastern half of Arizona to the western two-thirds of New Mexico and in trans-Pecos Texas. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. |
Parent taxa | Fabaceae > subfam. Faboideae > Lathyrus |
Sibling taxa | |
Synonyms | L. palustris var. graminifolius |
Name authority | (S. Watson) T. G. White: Bull. Torrey Bot. Club 21: 454. (1894) |
Web links |