生活型

herb

形態特徵

• Stems prostrate with ascending tips, elongate, rooting from lower nodes, appressed pilose.
• Leaves chartaceous, linear-oblong to lanceolate, 2–10 cm long, 6–20 mm wide, apex acute, base narrowed, margins sparsely mucronulate-serrulate, sessile or short petiolate, appressed pilose on both surfaces.
• Heads 2–2.5 cm across, solitary on erect branches, peduncle 6–12 cm long; involucre hemispheric, 8–9 mm long, bracts 5, nearly equal in length, in 1 series, oblong, acute or sometimes obtuse, short appressed pubescent. Ray florets in 1 series, yellow, corolla 9–11×3–3.5 mm, 2- to 3-dentate. Disc corolla 4–4.5 mm long, 5-lobed.
• Achenes obovoid, 3.5 mm×1.5–2 mm, coarsely hairy at tip. Pappus vase-or cup-shaped.

分布

• 台灣 : on paddy ridges, in grassy fields and moist lowland depressions in the north, also common in littoral areas.
• 世界 : India, southeast Asia, Japan and China.

引證標本

TAIPEI: Kungliao, Nanya, Peng 14950; Shihting, Huangtitien, Peng 12890. ILAN: Wufengchi, Kao 3262. HSINCHU: Hukou, Peng 7228; Hengshan, Peng 12144. MIAOLI: Chunan, Lin 567.

引用文獻

• PENG, Ching-I & CHUNG, Kuo-Fang; LI, Hui-Lin, Flora of Taiwan, second edition 4: 1094. 1998.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)