臺灣野生植物資料庫

Herbs perennial. Roots thick. Stems 150–250 cm high, usually hollow, green to purple with conspicuously dilated and often bladeless sheaths, slightly velutinous. Leaves 80–100 cm long, 2–3-ternate-pinnate, chartaceous; pinnae elliptical to rhombic, 6–12 cm long, 3–6 cm wide; acute at apex, obtuse or attenuate at base but the ternate pinnae slightly decurrent at base, the margins serrate to doubly serrate, mucronate; reticulate veinlets prominent, velutinous; petioles pubescent. Umbels compound, rays 50–70, about 5–20 cm long, unequal; peduncles scabrescent; bracts 0–2, linear-lanceolate, about 2 cm long; umbellules 5 cm in diameter; pedicels about 40–60; bracteoles 0–4, linear, about 1 cm long. Flowers white calyx-teeth triangular; petals ovate to obovate, with a narrowly inflexed apex; anther purple but yellow in the line of dehiscence; ovary glabrous. Fruit oblong, glabrous, 5–9 mm long, 4–8 mm wide, lateral ribs broadly thin-winged, wider than seed, dorsal ribs filiform. Vitta 3 in the interval, 6–8 in the commissure. Seeds strongly compressed dorsally, inner face plane to concave. (Jenn-Che Wang, Hung-Hsin Chen, Tsai-Wen Hsu, Kuo-Hsiang Hung, Chi-Chun Huang 2024)