Rhizome erect to suberect; fronds tufted, glabrous, 60-120 × 30-45 cm. Stipe up to 30 cm long. Lamina up to 1 m, bipinnate and ovate in outline. Sterile pinnules oblong-lanceolate in outline; apex rounded; base asymmetrically truncate; margin minutely serrate. Fertile pinnules situated on the end of the lamina and covered with sporangia.