Vicia nigricans |
Vicia grandiflora |
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black vetch, giant vetch, spring vetch, tiny vetch |
big-flower vetch, large yellow vetch |
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Habit | Herbs annual. | |
Stems | sprawling or climbing, slender to robust, 3–6 dm. |
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Leaves | 1–4 cm; tendrils branched; stipules foliose, approaching leaflets in size, semisagittate, with nectariferous patch abaxially; leaflets 6–14, blades oblong to linear, 10–25 × 1–5 mm, apex obtuse to truncate-emarginate, surfaces finely pubescent. |
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Inflorescences | 1–3-flowered, 0–1 cm. |
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Flowers | 25–35 mm; calyx base symmetric, lobes equal, 1/2–2/3 length of tube; corolla yellow suffused with violet, banner stenonychioid, blade equal to claw, glabrous; style compressed abaxially, pubescent apically, tufted abaxially. |
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Legumes | black, linear, 25–45 × 7–10 mm, oblique-tipped, glabrate; stipe absent. |
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Seeds | ca. 15, brown with indistinct black spots, compressed-globose, 3–3.5 mm diam.; hilum raised, white, encircling 3/4 circumference of seed. |
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2n | = 12, 14. |
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Vicia nigricans |
Vicia grandiflora |
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Phenology | Flowering Apr–May. | |
Habitat | Roadsides, open woods, cultivated fields. | |
Elevation | 0–1000 m. (0–3300 ft.) | |
Distribution |
w North America; s South America (Argentina, Chile)
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AL; AR; DE; FL; GA; KY; LA; MA; MD; MI; MS; NC; NJ; NY; SC; TN; TX; VA; WV; c Europe; se Europe [Introduced in North America]
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Discussion | Varieties 2 (1 in the flora). Variety nigricans is known from Pacific coastal areas of southern South America. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | Fabaceae > subfam. Faboideae > Vicia | Fabaceae > subfam. Faboideae > Vicia |
Sibling taxa | ||
Subordinate taxa | ||
Name authority | Hooker & Arnott: Bot. Beechey Voy., 20. (1830) | Scopoli: Fl. Carniol. ed. 2, 2: 65, plate 42. (1772) |
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