Plants coarse, densely hirsute, erect, branched, 30-100 cm tall; stems often reddish. Leaves 3-9 cm long, sessile, oblong obovate to lanceolate, hirsute, acuminate, base narrowed, margins irregularly and rather coarsely spinulose-toothed. Heads ovoid, 6-7×5-6 mm, larger in fruit; peduncle hirsute, ca. 1 cm long; bracts green, hairy, as long as or exceeding florets; ligule of ray florets ca. 1.5 mm long. Achenes black, ca. 3 mm long, apically hairy.

HUALIEN: Chen 3381.

Malaysia and the Philippines. Taiwan, abandoned ponds and roadsides around Hualien harbor, probably introduced via merchant ships from southeast Asia.