Rhizome stout, ascending, covered with persistent stipe bases, scales thin, entire, pale brown to brown, ovate-lanceolate. Stipes 10-18 cm long, stramineous, scaly at base, sparsely scaly upwards; lamina finely dissected, to 25 cm long, by 12 cm wide, lanceolate, trupinnate; rachis stramineous; rachillae narrowly winged; pinnae ascending, with vert short petioles, linear-lanceolate, attenuate; pinnules usually anadromous, cut to costa, lobes ending in sharp teeth; upper surface with long spine-like processes along costules. Sori often covering the entire undersurface when mature and protruding past the narrow lobes of the pinnules; indusia oblong or reniform.
Habitat: Edge of forest or side by the trail
Leaf shape: Deltoid
Apex of Leaf: Acuminate
Leaf Division: Tripinnate and more complex
Length of Stipe: 15 (10-30)
Length of Lamina: 25 (20-45)
Width of Lamina: 20 (15-30)
Stipe Color: Stramineous
Free Pinnulate in basal Pinnae: Yes
Form of basal Pinnulate arrangement: Anadromous
Apex of Pinnae: Acuminate
Petioled in pinnae: Obvious Petiole (more than 3 mm)
Length of Lowest Pinnae: 15 (12-25)
Wideth of Lowest Pinnae: 7 (5-10)
Lowest pinnae with enlarged basiscopic pinnules (more than 3 mm): No, less than 3 mm
Apex of terminal fragment: Acuminate
Margin of terminal fragment: Deep Lobed
Type of Basal of Pinnule: Petiolulate
Anterior pinna or pinnule auriculate: not auricaulate
Lowest Pinnae with shorter basal pinnule: No, basal pinnule similar with next two pinnules
Second Lowest Pinnae with shorter basal pinnule: No, Basal Pinnulate similar with next two
Abaxial Surface of Rachis with Unicellular Hairs ?: No, glabrous
Abaxial Surface of Rachis with Gland Hairs?: No, there is no gland hairs on it
Abaxial Surface of Coaste with Unicellular Hairs ?: No, there is no unicellular hairs on costae (glabrous)
Type of Adaxial Costae Spines: Long-soft spines
Spines Existing on Adaxial Costulate: Yes, spines Existing on costulate
Type of Scales on Basal Stipe: Ovate
Color of Scales on Basal Stipe: Yellow Brown
With Adventitious Bud near the Apex of Leave: No, adventitious buds absent
Sori Shape: Short straight
Sori Position: Closed to midrib
Spore Surface Type: Cristate-Retate Type
Type of Rhizome: Short Erect
Geographic Distribution: East Asia
Altitude: 2800 (1900-3000)
