形態特徵

• Rhizome long-creeping, 10 mm wide; scales olive-brown, clathrate, peltate, broadly ovate.
• Stipes stout, 15-45 cm long, jointed to a short phyllopodia; fronds deeply pinnatifid, rachis narrowly winged; lobes about 10-16 cm long or longer, and about 1 cm wide, terminal lobe similar to lateral ones, apices acute or acuminate, margins sinuate or entire; rachis and costae raised; venation reticulate, lateral main veins somewhat wavy, distinct but not prominent.
• Sori round or oval, large, sunken.

分布

• 世界 : India, Thailand, Indo-China, China, the Ryukyus, Malesia and Micronesia.

引證標本

NANTOU: Chingshuikou, Huang 1100; Sun Moon Lake, Kudo & Sasaki s. n. 1929*.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 502. 1994.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)