Braun's holly-fern has leaves that are 3-9dm, with petioles 13-18cm, and densely scaly. Blades are lanceolate, 7-17cm wide, and taper to a sharp point at the tip, reduced below, essentially bipinnate. Pinnae are in 30-40 pairs, and taper to a sharp point at the tip, alternate above, the lower are nearly opposite. Pinnules are in 9-15 pairs on the larger pinnae, ovate and triangular to oblong, acute, with tiny incurved teeth along the margins. Sori are in a single row on each side of the midrib. Indusia are pale and slightly lobed.