生活型

herb

形態特徵

• Perennial herbs; stems slightly woody at base, ascending or suberect, sparsely puberulent, glabrescent.
• Leaves chartaceous, slightly hirsute, narrowly oblong, narrowly elliptic to elliptic, 4-16 cm long, 2-6.5 cm wide, basiscopic half acute to semicordate, margins ciliolate, serrate, apex abruptly caudate, ciliolate and sparsely 1-5-serrulate; stipules 2, glabrous above, hirsute beneath, 1-nerved stipules lanceolate-cymbiform, 2-nerved stipules obliquely triangular-lanceolate.
• Inflorescences very thin discoid, somewhat butterfly-shaped, sessile or subsessile; bracts connate, forming an unlobed, narrowly oblong to oblong involucre to 10 mm long, 4 mm wide. Female flowers short pedicellate; bracteoles narrowly oblong, puberulent beneath; sepals 3, free; staminodes 3; stigma penicillate; ovary slightly compressed, ovoid-ellipsoidal.
• Achenes ellipsoid, 6-ribbed.

物候

Flowering February to July.

分布

• 台灣 : Medium altitudes, mostly in ravines, rare on moist forest floors near ravines.

引證標本

TAICHUNG: Hsinchayang, Shih 3002. NANTOU: Chitou, Chang 18273. KAOHSIUNG: Meishankou, Shih 3403; Shan-ming Bridge, Shih 2814. TAITUNG: South Cross Highway, Shih 2662; Tungho Farm, Shih 2797.

引用文獻

• YANG, YUEN-PO, SHIH, BING-LING and LIU, HO-YIH, Flora of Taiwan, second edition 2: 215. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)