过江藤 guo jiang teng

Verbena nodiflora Linnaeus, Sp. Pl. 1: 20. 1753; Lippia nodiflora (Linnaeus) Michaux.

Herbs, perennial. Branches many, creeping, rooting at distal nodes, minutely strigose. Leaves subsessile; leaf blade spatulate, 1-3 X 0.5-1.5 cm, papery, pubescent, base cuneate, margin distally sharply serrate, veins inconspicuously 4-paired. Inflorescences cylindric to ovate capitula, 1-2.5 cm; peduncle 1-7 cm. Corolla pinkish purple or white, glabrous. Capsules ca. 1.5 mm in diam. 2n = 36.

Common weed along streambanks and in grassy places; 300-2300 m. Fujian, Guangdong, Guizhou, Hainan, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Taiwan, Xizang, Yunnan [tropics and subtropics of both hemispheres].

Medicinal.