Vicia caroliniana Walter

Trailing or climbing perennial to 1 m; lfls usually 5–10 pairs, elliptic to oblong-lanceolate, 1–2 cm, rounded to obscurely retuse at the tip, mucronate; stipules lanceolate or half-sagittate, entire; racemes (peduncle included) 6–10 cm, loose, with 7–20 white fls 8–12 mm; cal nearly regular, 3 mm or less, the lobes essentially equal, broadly triangular, under 1 mm; fr 1.5–3 cm; 2n=14. Moist woods and thickets; N.Y. to Wis., s. to Fla. and Tex. May, June.

It is a temperate plant. It suits hardiness zones 3-9.