形態特徵

• Rhizome ascending.
• Stipes stramineous, tufted, 15-30 cm long, scaly near base; scales thin, brown, lanceolate; lamina ovate, tripinnatifid, 20-30 cm long, 12-15 cm wide; texture herbaceous; pinnae somewhat ascending, acuminate, often caudate, 5-10 cm long, 25-35 mm wide, petiolate, basal pair of pinnae usually slightly shortened; pinnules petiolate, anadromous, glandular pubescent on upper surface along rachis and rachillae; prominent spine-like processes borne on upper surface along rachis and costae.
• Indusia broad, brown. erose; linear, curved, J-shaped or reniform, often crossing veinlets.

分布

• 世界 : China, Japan.

引證標本

HSINCHU: Luchangtashan, Do s. n. 1934. CHIAYI: Mt. Alishan, Shieh & Tsai 6782. TAITUNG: Yakou, Tsai 4832.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 422. 1994.  (Fl. Taiwan 2nd edit.)