生活型

herb

形態特徵

• Stems elongate, stout, many branched, with a tuft of rosulate leaves at apex. Flowering branches ascending, branched.
• Radical leaves auriculate, 4.5–5.5×1.2–1.6 cm, apex rounded, base narrowed, margins denticulate, glabrous on both surfaces; median leaves 20–24×8–10 mm, apex rounded, base clasping, margins slightly denticulate; upper leaves gradually smaller, not secondarily crowded on ascending flowering stems.
• Heads few, corymbose; peduncle 5–9 mm long. Involucre tubular, 6–8×3–5 mm, outer bracts in 1 series, ovate, 1 mm long, inner 8, oblong-lanceolate, obtuse. Corolla yellow, 8×1.5 mm.
• Achenes 4 mm long, 10-ribbed. Pappus white, 3 mm long.
• Chromosome number, 2n = 10 (Peng & Hsu, 1978).

分布

• 台灣 : local in southernmost littoral regions of Taiwan.

引證標本

PINGTUNG: Oluanpi, Peng 7133; Chialeshui, Hsiao 1084. TAITUNG: Lutao Is., Wang 6838.

參考文獻

• PENG, Ching-I & CHUNG, Kuo-Fang; LI, Hui-Lin, Flora of Taiwan, second edition 4: 924. 1998.  (Fl. Taiwan 2nd edit.)