细叶山艾 xi ye shan ai

Subshrubs, 50-60 cm tall, puberulent, glabrescent. Lower stem leaf blades suborbicular or ovate-triangular, 3-4 × ca. 4 cm, 2(or 3)-pinnatisect. Middle stem leaves: petiole 1-2 cm; leaf blade 3-3.5 × 3-4 cm, 1(or 2)-pinnatisect; segments 2(or 3) pairs, 3-lobuled; lobules (10-)20-30 × 1-2 mm. Uppermost leaves and leaflike bracts 3-5-lobed. Synflorescence a narrow, racemelike panicle. Capitula shortly pedunculate or ± sessile. Involucre subglobose, 1.5-2 mm. Marginal female florets 11-15. Disk florets 4-16, male. Achenes ellipsoid. Fl. and fr. Jun-Nov. 2n = 34*.

● Forest margins, roadsides, slopes; 300-2500 m. Taiwan.