Vicia tetrasperma |
|
---|---|
four-seed vetch, lentil tare, lentil vetch, slender vetch, smooth tare, sparrow vetch |
|
Habit | Herbs annual, sparsely pubescent. |
Stems | sprawling or climbing, filiform, 1–5 dm. |
Leaves | 1–4 cm; tendrils simple or branched; stipules much smaller than leaflets, semisagittate, without nectariferous patch; leaflets 4–12, blades oblanceolate or elliptic to linear, 6–20 × 1–5 mm, apex acute to apiculate, surfaces glabrous or sparsely villous. |
Inflorescences | 1–3-flowered, 1–3 cm, equal to or longer than subtending leaf rachis. |
Flowers | 3–6 mm; calyx base symmetric, lobes unequal, longer than or equal to tube; corolla light purple to pale lavender, banner stenonychioid, blade equal to claw, glabrous; style compressed abaxially, sparsely pubescent apically. |
Legumes | yellow to light brown, oblong, 10–15 × 3–4 mm, tip rounded, stigma attached to center of curve, glabrous; stipe to 1 mm. |
Seeds | 4, greenish gray to purplish black, subglobose, 1.5–2 mm diam.; hilum encircling 1/5–1/4 circumference of seed. |
2n | = 14. |
Vicia tetrasperma |
|
Phenology | Flowering Apr–Jun. |
Habitat | Fields, roadsides, waste areas, woodlands. |
Elevation | 0–2000 m. (0–6600 ft.) |
Distribution |
AL; AR; CA; CT; DC; DE; FL; GA; ID; KY; LA; MA; MD; ME; MI; MS; NC; NH; NJ; NY; OH; OR; PA; RI; SC; TN; TX; VA; VT; WA; WV; BC; NB; NF; NS; ON; PE; QC; SPM; Europe [Introduced in North America; introduced also in s South America (Chile)]
|
Discussion | Vicia tetrasperma var. tenuissima Druce in the sense of M. L. Fernald (1950), and listed as a separate variety of V. tetrasperma, is considered here and by D. Isely (1990) as a synonym of V. tetrasperma. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. |
Parent taxa | Fabaceae > subfam. Faboideae > Vicia |
Sibling taxa | |
Synonyms | Ervum tetraspermum |
Name authority | (Linnaeus) Schreber: Spic. Fl. Lips., 26. (1771) |
Web links |
|