Lathyrus latifolius |
Lathyrus torreyi |
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broad-leaf peavine, everlasting or perennial sweet pea, everlasting pea, everlasting peavine, everlasting vetchling, perennial pea, perennial peavine, perennial sweet pea, sweet pea |
redwood pea, Torrey's pea, Torrey's peavine |
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Habit | Herbs perennial, from rhizome, glabrous. | Herbs perennial, from rhizome, finely villous. |
Stems | broadly winged, sprawling or climbing, basally branched 1–5 times, 8–20 dm. |
angled, erect to sprawling, basally branched 0–3 times, 1–4 dm. |
Leaves | 2–5 cm, rachises broadly winged; tendrils well developed, branched; stipules lanceolate, 30–40 × 7–15 mm, at least 1/2 width of stem, much smaller than leaflets; leaflets 2, blades lanceolate-elliptic, 30–120 × 7–50 mm, surfaces glabrous. |
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 | 5–15-flowered, 10–33 cm. |
1- or 2-flowered, 0.5–3 cm. |
Flowers | 15–20 mm; calyx lobes unequal, lateral lobes linear-triangular, shorter than tube; corolla purple, magenta, pink, or white, banner erect, blade longer than claw, wings equal to keel; ovary densely glandular-pubescent, style rotated 90° from ovary axis. |
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 | 50–110 × 5–10 mm. |
15–20 × 4–5 mm. |
2n | = 14. |
= 14. |
Lathyrus latifolius |
Lathyrus torreyi |
|
Phenology | Flowering May–Sep. | Flowering Apr–Jul. |
Habitat | Roadsides, disturbed areas. | Open coniferous forests. |
Elevation | 50–2100 m. (200–6900 ft.) | 50–1500 m. (200–4900 ft.) |
Distribution |
AL; AR; AZ; CA; CO; CT; DC; DE; GA; IA; ID; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; MT; NC; NE; NH; NJ; NM; NV; NY; OH; OK; OR; PA; RI; SC; TN; TX; UT; VA; VT; WA; WI; WV; WY; BC; NB; NS; ON; PE; QC; Europe [Introduced in North America; introduced also in Mexico, South America (Argentina, Chile, Uruguay), Asia (China, Japan), n, e, s Africa, Pacific Islands (Hawaii, New Zealand), Australia]
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CA; OR; WA
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Discussion | Lathyrus latifolius is widely naturalized in North America and forms large thickets along roadsides, especially in the Pacific Coast states. M. J. W. Godt and J. L. Hamrick (1991) explored genetic variation within the species as it occurs in North America. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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. | FNA vol. 11. |
Parent taxa | Fabaceae > subfam. Faboideae > Lathyrus | Fabaceae > subfam. Faboideae > Lathyrus |
Sibling taxa | ||
Name authority | Linnaeus: Sp. Pl. 2: 733. (1753) | A. Gray: Proc. Amer. Acad. Arts 7: 337. (1868) |
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