Water spinach (Latin name: water spinach? Forsk), also known as Ipomoea aquatica, Ipomoea japonica, Ipomoea japonica, Ipomoea japonica and Ipomoea japonica, belongs to Ipomoea.

morphological character

Leaves vary in shape and size. They are oval, oblong, oblong-lanceolate or lanceolate, 3.5-17cm long and 0.9-8.5cm wide. Sharp or tapering, with a small short tip, the base is heart-shaped, halberd-shaped or arrow-shaped, occasionally truncated, whole or wavy, or sometimes there are a few coarse teeth at the base, and both sides are nearly hairless or occasionally sparse. Petiole 3- 14 cm long, glabrous.

The axillary peduncle of cymes is 1.5-9 cm long, the base is pilose, and the flower is1-3 (-5); Bracts scaly, long 1.5-2 mm; Pedicel length1.5-5cm, glabrous.

Sepals are nearly equal in length, ovate, 7-8 mm long, blunt at the top, with a small mucronate, and glabrous outside; Corolla white, reddish or purplish red, funnel-shaped, 3.5-5 cm long; Stamens are unequal in length, and filaments are hairy at the base; Ovary conical, glabrous.