Lathyrus torreyi |
Lathyrus delnorticus |
|
---|---|---|
redwood pea, Torrey's pea, Torrey's peavine |
Del Norte pea |
|
Habit | Herbs perennial, from rhizome, finely villous. | Herbs perennial, from rhizome, glabrous. |
Stems | angled, erect to sprawling, basally branched 0–3 times, 1–4 dm. |
narrowly winged, erect to climbing, basally branched 0–several times, 2–8 dm. |
Leaves | 2–7 cm; tendrils absent or mucronate; stipules lanceolate, 7–12 × 2–5 mm, much smaller than leaflets; leaflets 8–16, scattered, blades ovate to lanceolate, 5–15 × 3–10 mm, surfaces villous. |
9–13 cm; tendrils well developed; stipules lanceolate, 10–30 × 3–15 mm, sometimes equal to distal leaflets; leaflets 9–12, scattered, blades lanceolate, 30–50 × 5–15 mm, surfaces glabrous. |
Inflorescences | 1- or 2-flowered, 0.5–3 cm. |
8–12-flowered, 7–10 cm. |
Flowers | 8–12 mm; calyx lobes unequal, lateral lobes linear-triangular, longer than tube; corolla blue-purple, banner erect, blade equal to claw, wings longer than keel; ovary densely pubescent. |
9–12 mm; calyx lobes unequal, lateral lobes deltate, shorter than tube; corolla cream-white, banner erect, blade longer than claw, wings equal to keel; ovary glabrous. |
Legumes | 15–20 × 4–5 mm. |
30–40 × 3–5 mm. |
2n | = 14. |
= 14. |
Lathyrus torreyi |
Lathyrus delnorticus |
|
Phenology | Flowering Apr–Jul. | Flowering May–Jun. |
Habitat | Open coniferous forests. | Serpentine areas along rivers and creeks in coniferous and mixed evergreen forests. |
Elevation | 50–1500 m. (200–4900 ft.) | 0–1000 m. (0–3300 ft.) |
Distribution |
CA; OR; WA
|
CA; OR
|
Discussion | Lathyrus torreyi is known from in and west of the Cascade Range; it is very rare in Washington. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lathyrus delnorticus is restricted to Del Norte and western Siskiyou counties in California, and Curry and Josephine counties in Oregon. (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 | ||
Name authority | A. Gray: Proc. Amer. Acad. Arts 7: 337. (1868) | C. L. Hitchcock: Revis. N. Amer. Lathyrus, 30, fig. 21. (1952) |
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