形態特徵

• A perennial, rather stout herb, glabrous, 60–100 cm high.
• Leaves long-petiolate, 1–2-ternate, 10–35 cm long (including the petiole), the leaflets obovate-cuneate, 3–6 cm long, 2–4 cm broad, petiolate or sessile, often slightly 3-lobed at apex; petioles 10–20 cm long, sheathing at base; cauline leaves reduced upward. Umbels compound; peduncles 3–10 cm long; involucres deciduous, linear-lanceolate, 5–8 mm long, pubescent; rays 15–30, 1–5 cm long, spreading-ascending, subequal; involucels several, linear-lanceolate, 5 mm long, pubescent; umbellules 1 cm long.
• Flowers white; petals ovate, with narrower inflexed apices dorsally; hirsutulous calyx-teeth 1 cm long; stylopodium conical.
• Fruit oblong-ovate, dorsally compressed, 4–6 mm long, 2–4 mm broad, pubescent, the dorsal ribs filiform, not winged, the lateral ribs winged, shorter than the body. Vittae 3–5 in the intervals, 8–10 on the commissure. Seed-face slightly concave.

分布

• 台灣 : Along seashores in the northern and eastern parts, and also on the Lanyu Island.
• 世界 : Distributed in Japan, the Ryukyus, Mainland China and the Philippines.

引證標本

TAIPEI: Yehliu, Chuang & Kao 3380. TAITUNG: Hsinchiang, Yamamoto 2264; Is. Lanyu, Liu & Keng 445; Huang 10569.

引用文獻

• KAO, MUH-TSUEN, Flora of Taiwan, second edition 3: 1010. .  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)