Stems long-creeping, cordlike, 3--6 mm diam. Leaves monomorphic, evergreen, 3--6 cm apart, 50--150(--250) cm. Petiole straw-colored to tan, 20--125 cm × 3--6 mm, scaleless. Blade 30--125 cm, broadest at base, gradually narrowed distally to pinnatifid apex. Pinnae 7--30 × 1--2 cm, incised 1/3--1/2(--3/5) of width; segments deltate, rounded to acute; proximal pair of veins from adjacent segments united at acute or obtuse angle below sinus, with excurrent vein 2--4 mm. Indument abaxially of hairs 0.1--0.3 mm on costae and veins, or hairs often lacking, costae also with tan, ovate scales; veins, costules, and costae adaxially glabrous or sparsely pubescent; blade tissue without hairs on both sides, or hairy abaxially, usually with red to orange, shiny, sessile, hemispheric glands abaxially. Sori round, medial to supramedial; indusia tan, glabrous to hairy; sporangia with red- or orange-capped, stalked, globose glands arising from sporangial stalks. 2 n = 144.
