生活型

shrub

形態特徵

• Dwarf subshrubs; stems 7–10 cm long, procumbent at base, often branched, densely hirsute.
• Middle cauline leaves numerous, crowded, spatulate, 16–27×4.5–7 mm, apex rounded, base gradually narrowed, margins subentire, hirsute on both surfaces; upper leaves gradually smaller.
• Heads 6–7 mm broad, corymbosely arranged, peduncle 5–12 mm long, densely hirsute; involucre subglobose, ca. 5–7 mm across, bracts 5-seriate, imbricate, spinulose, outer bracts subulate, 1.5–2 mm long, middle bracts ovate, inner bracts oblong; corolla 2.5 mm long.
• Achenes ca. 1–2 mm long, ca. 0.5 mm broad, 5-ribbed. Pappus white, 1 mm long, deciduous.
• Chromosome number, n = 9 (Peng et al., Bot. Bull. Acad. Sin. 27: 221. 1986).

分布

• 台灣 : a rare maritime plant on raised coral rocks, only on Hsiao Lanyu Island and the southern tip of Longkeng.
• 世界 : The Philippines (Batan).

引證標本

PINGTUNG: Oluanpi, Longkeng, Peng 5465. TAITUNG: Isl. Hsiao Lanyu, Sata s. n. 1932.

參考文獻

• PENG, Ching-I & CHUNG, Kuo-Fang; LI, Hui-Lin, Flora of Taiwan, second edition 4: 1091. 1998.  (Fl. Taiwan 2nd edit.)