Lathyrus ochroleucus |
Lathyrus pusillus |
|
---|---|---|
cream pea, cream vetchling, cream-flower peavine, cream-flower sweet pea, creamy peavine, pale vetchling |
singletary vetchling, tiny pea |
|
Habit | Herbs perennial, from rhizome, glabrous except calyx ciliate. | Herbs annual, glabrate. |
Stems | angled, sprawling or climbing, basally branched 0–3 times, 3–8 dm. |
narrowly winged, sprawling or climbing, basally branched 0–4 times, 3–6 dm. |
Leaves | (2–)3–10 cm; tendrils well developed; stipules somewhat foliose, ovate-lanceolate, 15–35 × 5–20 mm, sometimes equal to distal leaflets; leaflets (5 or)6(–8), usually paired, blades broadly ovate to lanceolate, (20–)25–65 × 10–35(–42) mm, surfaces glabrous. |
1–3 cm; tendrils well developed; stipules linear, 10–20 × 2–5 mm, equal to smaller leaflets; leaflets 2, blades linear, 15–60 × 2–8 mm, surfaces glabrous. |
Inflorescences | 4–10(–13)-flowered, 3–12 cm. |
terminal, 1- or 2-flowered, 2–4 cm. |
Flowers | 10–15 mm; calyx lobes unequal, lateral lobes lanceolate, usually longer than tube; corolla cream-white, banner erect, blade longer than claw, wings equal to keel; ovary glabrous. |
7–10 mm; calyx lobes subequal, linear-triangular, usually longer than tube; corolla blue, banner erect, blade equal to claw, wings equal to keel; ovary glabrous. |
Legumes | 30–70 × 4–7 mm. |
30–50 × 2–4 mm. |
2n | = 14. |
= 14. |
Lathyrus ochroleucus |
Lathyrus pusillus |
|
Phenology | Flowering Apr–Jul. | Flowering Mar–May. |
Habitat | Moist woodlands, clearings, thickets, glades, meadows. | Roadsides, pastures, prairies, open habitats. |
Elevation | 0–1500 m. (0–4900 ft.) | 0–800 m. (0–2600 ft.) |
Distribution |
AK; IA; ID; IL; IN; MI; MN; MT; ND; NE; NJ; NY; OH; PA; SD; VT; WA; WI; WV; WY; AB; BC; MB; NT; NU; ON; QC; SK; YT
|
AL; AR; FL; KS; LA; MO; MS; NC; OK; TX; VA; South America (Argentina, Brazil, Chile, Ecuador, Paraguay, Peru, Uruguay) |
Discussion | Lathyrus pusillus, the only North American member of section Notolathyrus, a section centered in South America, is also the only annual species of Lathyrus native to North America. It is native to the southeastern United States; it has been cultivated as a forage crop in Oregon and occasionally escapes, but it has not become naturalized there. (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. nevadensis subsp. stipulaceus | |
Name authority | Hooker: Fl. Bor.-Amer. 1: 159. (1831) | Elliott: Sketch Bot. S. Carolina 2: 223. (1823) |
Web links |