形態特徵

• Rhizomes creeping, about 1 cm thick, covered with lanceolate, brown scales, the scale walls thick and lumen with a yellow pigment.
• Sterile fronds pinnate, lateral pinnae more than 20 pairs, linear-lanceolate, alternate, petiolulate, 6-20 cm long, 15-20 mm wide, shallowly lobed, the lobe margins entire, with a spine-like tooth at each sinus; stipes 60 cm long, stramineous, with large scales at base and small scales throughout, especially in the grooves; veins anastomosing, the areolae without included veinlets; terminal pinnae similar in shape and size to the lateral pinnae.
• Fertile fronds much contracted, lowest pinnae 8-12 cm long by 6-10 mm wide, terminal pinnae 3-8 cm long; stipes up to 40 cm long.
• Sori acrostichoid.

分布

• 台灣 : Growing on the forest floors.
• 世界 : S. China, N. India, Ceylon, Burma, Thailand, Nepal, Bhutan, Sikkim.

引證標本

TAICHUNG: Tahsueshan, Liu et al. s. n. 1957. NANTOU: Tahuenpingshan, Kuo 92; Chingshuikou, Huang & Kao 791. KAOHSIUNG: Tengchih, Sasaki s. n. 1936; Shanping, Kuo 1907. PINGTUNG: Kosenpo, Matuda s. n. 1910.

參考文獻

• TSAI, JINN-LAI and SHIEH, WANG-CHUENG, Flora of Taiwan, second edition 1: 352. 1994.  (Fl. Taiwan 2nd edit.)