Fronds 1-2 m; stipes tuberculate. Laminae bipinnate; pinnae 50-60 × 20-25 cm, with 16-18 pairs of pinnules; pinnules 10-20 × 1.5-2 cm, bases asymmetrical, rounded, margins sharply serrate, apices acuminate. Veins obvious, up to 15 lateral veins per cm; false veins long, ± halfway from margin to costule. Sori ca. 0.5 mm from margin, ca. 1 mm, composed of 10-12 sporangia. Exospores with reticulate ornamentation.

● Hainan.