Subshrub to 1.5-2.5(-3) m tall. Stems striate, center hollow, base woody, 1.5-2.5 cm in diam., puberulous or sometimes glabrate; main stems usually simple or 2-4-branched from middle. Leaves herbaceous, rugose, linear, 25-35×2.5-3.5 cm, apex acute, base attenuate into a short petiole, margins remotely double-serrate, sparsely pilose on upper surface, villous on lower surface, veins 24-30 pairs. Heads numerous, pedunculate, terminal and axillary, in a pyramidal panicle. Involucres globose-campanulate, bracts in 2 or 3 series; outer ones shorter, linear-lanceolate, 2-3 mm×0.7-0.9 mm, compressed, abaxially with numerous sessile glands and multicellular hairs; inner linear-lanceolate, 7-8 ×0.6 mm, margins scarious, margins and apices ciliate. Receptacle convex, 1.5-2 mm across, alveolate, sparsely pilose. Central florets yellowish, 6-7 mm long, with 5 triangular lobes, lobes with sessile glands and sparsely multicellular hairs. Outer florets ca. 6 mm long, 2 or 3 lobed, glabrous. Achenes pale brown, oblong-terete, 1.1-1.3×0.3 mm, pilose, 10-ribbed. Pappus pale brown to yellowish white, 5-6 mm long. Fl. and fr. Mar-May. Chromosome number, 2n = 18 (Peng & Hsu, 1978).
TAIPEI: Wulai, Leu 1682; Kungliao, Peng 15410 (Holotype!). TAITUNG: Lanyu Is., Peng 7640. HUALIEN: Juisui, Peng 11670; Hsiulin, Leu 1441.
Endemic; disjunctly distributed in Taiwan, along road cuts through forest, at borders of Cryptomeria plantations, riverbanks, 0-400 m, rare.
