台灣艾納香

Erect herb, 0.8-1.2 m tall, rootstock fibrous. Stems terete, striate, usually unbranched except in inflorescence, velutinous particularly on younger parts, terete. Leaves subsessile or short petiolate, oblong-lanceolate, 11-13×3-5 cm, velutinous, hairs with prominent base on upper surface, more or less villous on lower surface, apex acute, base attenuate, margins distantly serrate with mucronate teeth, veins 5 or 6 pairs. Heads 6-8 mm across, 10-12 mm long, in terminal and axillary panicles, pedunculate. Involucre globose-campanulate, bracts in 2-4 series, sometimes purple tipped; outer bracts linear-lanceolate, 3-4 mm long, 0.5-0.6 wide, margins ciliate. Receptacle slightly convex, 4-5 mm across, alveolate, remotely pilose. Corollas yellowish, tubular, central florets 8-9 mm long, with 5 triangular lobes, lobes with sessile glands and multicellular hairs; outer florets filiform, 7-8 mm long, with 3-5 lobes. Achenes pale brown, oblong, sparsely hirsute, ribbed. Pappus white, 5-6 mm long.

TAIPEI: Nanshih, Masamune 4617; Kungkuan, Suzuki s. n. 1928. TAICHUNG: Fengyuan, Leu 1508.

India, Myanmar, southeastern Asia and China. Taiwan, only a few records from the lowland in the western part.