Plants terrestrial. Rhizomes shortly creeping, protostelic or solenostelic, covered with dark brown hairs or subulate scales. Fronds approximate; stipe stramineous or dark stramineous, shallowly sulcate adaxially, glabrous; lamina 3-or 4-pinnate, pinnatifid and gradually narrowed toward apex; ultimate pinnules or segments usually cuneate or linear; veins free, simple or once or twice forked on ultimate pinnules, papery to slightly leathery. Sori usually submarginal, ovate, terminal on a single vein, or on 2 or 3 veins; annulus consisting of 12-24 thickened cells; indusia ovate or cup-shaped, basally and partially or entirely adnate laterally. Spores ellipsoid and monolete, or globose and trilete.