Lathyrus graminifolius |
Lathyrus glandulosus |
|
---|---|---|
grass-leaf pea |
redwood pea, sticky pea |
|
Habit | Herbs perennial, from rhizome or woody rootstock, glabrous. | Herbs perennial, from rhizome, sparsely puberulent. |
Stems | angled, sprawling or climbing, sometimes branched at flowering nodes, 2–6 dm. |
narrowly winged, erect, sprawling, or climbing, basally branched 0–2 times, 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. |
14–18 cm; tendrils well developed; stipules lanceolate, 10–20 × 1–5 mm, much smaller than leaflets; leaflets 14–18, scattered, blades ovate to lanceolate, 30–50 × 10–20 mm, surfaces pubescent with eglandular trichomes, glandular-pubescent abaxially. |
Inflorescences | 5–8-flowered, 10–18 cm. |
7–12-flowered, 10–16 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. |
10–14 mm; calyx lobes unequal, lateral lobes linear-triangular, longer than tube; corolla blue-purple, banner erect, blade longer than claw, wings equal to keel; ovary densely glandular-pubescent. |
Legumes | 30–50 × 4–8 mm. |
30–50 × 6–8 mm. |
2n | = 14. |
= 14. |
Lathyrus graminifolius |
Lathyrus glandulosus |
|
Phenology | Flowering Apr–Aug. | Flowering May–Jun. |
Habitat | Slopes of ponderosa pine, mixed conifer, spruce-fir and oak-juniper forests. | Roadsides, talus slopes, oak woodlands. |
Elevation | 1000–2800 m. (3300–9200 ft.) | 0–800 m. (0–2600 ft.) |
Distribution |
AZ; NM; TX; Mexico (Chihuahua, Sonora)
|
CA |
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.) |
Lathyrus glandulosus is known only from Humboldt and northern Mendocino counties. (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. palustris var. graminifolius | |
Name authority | (S. Watson) T. G. White: Bull. Torrey Bot. Club 21: 454. (1894) | Broich: Madroño 33: 136, figs. 1, 2. (1986) |
Web links |