生活型

herb

形態特徵

• Stems 80–160 cm tall, glabrous, corymbosely branched apically.
• Cauline leaves 2, subcoriaceous, lower leaves long petiolate, peltate, spherical, 35 cm across, palmatipartite, segments broad, 15–20 mm across, segments 5–9, bifid, small segments broad, 15–20 mm across, margins irregularly incised-serrate, apex acute; cauline leaves smaller and shorter-petiolate, with fewer segments; upper leaves bract-like, linear-lanceolate, acute, remote, gradually smaller.
• Heads doubly corymbose, 8–10 mm across; peduncle 5–16 mm long; bracts linear, 3–4 mm long. Involucre tubular, 9–10 mm long, subtended by 3 or 4 linear bractlets, bractlets 3–5 mm long; bracts in 1 series, 5 or 6, glabrous, oblong, obtuse. Florets 14–16; corolla white, 10–13 mm long, 5-lobed.
• Pappus red, 10 mm long, bristles nearly equal.

分布

• 台灣 : local in Miaoli Hsien, grassy fields in open forests, 300–500 m, not collected for more than 70 years, possibly extinct.

引證標本

MIAOLI: Tonghsiao, Suzuki 20509, Sasaki s. n. 1910.

參考文獻

• PENG, Ching-I & CHUNG, Kuo-Fang; LI, Hui-Lin, Flora of Taiwan, second edition 4: 1077. 1998.  (Fl. Taiwan 2nd edit.)