Saltmarsh morning glory

Perennials. Stems twining. Leaf blades ± triangular, 40–100 × 20–60 mm overall, base hastate to sagittate, basal lobes lance­olate, linear, or narrowly tri­angular, 15–60(–100) × 3–8(–15) mm, surfaces glabrous. Peduncles glabrous. Flowers: sepals elliptic, oblong, or ovate, 8–9 mm, coriaceous, apex obtuse to rounded, mucro­nate, surfaces glabrous; corolla lavender, purple, or red-purple, funnelform, 60–90 mm, limb 60–80 mm diam.

Flowering Apr–Oct. Beaches, brackish or freshwater marshes, swamps; 0–400 m; Ala., Fla., Ga., La., Miss., N.C., S.C., Tex.; Mexico; West Indies; introduced in Eurasia, nw Africa.