Flora of North America species comparison

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Lathyrus torreyi

redwood pea, Torrey's pea, Torrey's peavine
Habit Herbs perennial, from rhizome, finely villous.
Stems

angled, erect to sprawling, basally branched 0–3 times, 1–4 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.
Inflorescences

1- or 2-flowered, 0.5–3 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.
Legumes

15–20 × 4–5 mm.
2n

= 14.

Lathyrus torreyi
Phenology Flowering Apr–Jul.
Habitat Open coniferous forests.
Elevation 50–1500 m. (200–4900 ft.)
Distribution
from FNA
CA; OR; WA
[WildflowerSearch map]
[BONAP county map]
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.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Lathyrus
Sibling taxa
L. angulatus, L. aphaca, L. biflorus, L. brachycalyx, L. brownii, L. cicera, L. decaphyllus, L. delnorticus, L. eucosmus, L. glandulosus, L. graminifolius, L. grimesii, L. hirsutus, L. hitchcockianus, L. holochlorus, L. japonicus, L. jepsonii, L. laetivirens, L. lanszwertii, L. latifolius, L. littoralis, L. nevadensis, L. nissolia, L. ochroleucus, L. odoratus, L. palustris, L. pauciflorus, L. polyphyllus, L. pratensis, L. pusillus, L. rigidus, L. sphaericus, L. splendens, L. sulphureus, L. sylvestris, L. tingitanus, L. tracyi, L. tuberosus, L. venosus, L. vestitus
Name authority A. Gray: Proc. Amer. Acad. Arts 7: 337. (1868)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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