Water-spinach

Perennials. Stems usually re­pent, rooting at nodes, some­times floating, rarely twining. Leaf blades ± hastate to lanceo­late, 40–120 × 20–60 mm, base ± cordate or hastate to truncate, terminal lobe broadly to nar­rowly triangular or lanceo­late, surfaces glabrescent. Peduncles glabrous. Flowers: sepals elliptic-ovate to oblong-ovate, 6–8 mm, chartaceous or coriaceous, apex acute or obtuse, mucronulate; corolla usually purple, rarely white, funnelform, 40–50 mm. 2n = 30.

Flowering year-round. Abandoned plantings, wet sites; 0–100 m; origin uncertain; introduced; Calif., Fla.; Mexico; Central America; South America; Asia; Africa; Australia.