Rhizomes dark brown, ca. 1 cm in diam., covered with gray scales; scales lanceolate, vermiform, ca. 1.5 cm. Fronds dark green when dry, papery, with sparse, dark brown, vesicular scales along rachis abaxial surface; stipe stramineous, 25-30 cm, grooved above, with sparse, narrowly lanceolate, dark brown scales (ca. 2 mm); sterile lamina pinnate, elliptic, 45-55 × 18-20 cm; pinnae 20-25 pairs, close, sessile, ca. 2 cm apart, lanceolate, 10-12 × 2-2.4 cm, articulate to rachis, base rounded-truncate, margin basally entire, apically sparsely serrate, apex long acuminate; rachis dark green when dry, distal part of rachis narrowly winged; veins forming costal, irregular, triangular areoles and 3 distal rows of areoles, without included free veinlets. Fertile fronds not seen.

● Creeping on rocks or tree trunks in dense forests. SE Yunnan.