生活型

herb

形態特徵

• Perennial herbs, glabrous, to 80 cm tall. Stem stout, a short rhizome with numerous adventitious fibrous roots.
• Leaves numerous, in a more or less erect to spreading rossette; petiole 15–20 cm long; blade ovate to broadly ovate, 25–30 cm long, 12–20 cm wide, shallowly dentate.
• Scapes to 80 cm long. Spikes solitary, to 45 cm long; bracts glabrous, usually shorter than sepals; Flowers sessile; sepals 4, elliptic, 2 mm long, 1.2 mm wide; corolla tubular, 1.5 mm long, 4-lobed, segments 0.8 mm long, 0.6 mm wide; stamens 4, exserted from corolla tube, alternate corolla segments, filament 2 mm long; anthers 0.8 mm long; pistil 1, 4.5 mm long, style slender, villose, 3 mm long; ovary depressed ovoid, 1.5 mm long.
• Capsule ovoid, 3.0 mm long, 2 mm wide. Seeds 18, ovate, concave, 0.8 mm long, 0.6 mm wide.

分布

• 台灣 : found only on Agincort Island, Keelung, NE. Taiwan.
• 世界 : Japan.

引證標本

TAIPEI: Agincort Island, Keelung, Yamamoto et al. s. n. 1932. Taipei, cult., Yamamoto s. n. Aug.15, 1938.

參考文獻

• CHEN, Shih-Huei and WU, Ming-Jou, Flora of Taiwan, second edition 4: 734. 1998.  (Fl. Taiwan 2nd edit.)