Stems dull or inconspicuously glaucous, moderately stout, to 10 mm diam., acrid or bland-tasting; scales uniformly brown or slightly darker near point of attachment, lanceolate-ovate, symmetric, margins entire to erose. Leaves to 70 cm. Petiole usually slender, to 3 mm diam. Blade deltate to lanceolate-ovate, pinnatifid, usually widest near base, to 20 cm wide, leathery to herbaceous; rachis sparsely scaly to glabrescent abaxially, puberulent adaxially; scales deltate to ovate, usually more than 10 cells wide. Segments linear-lanceolate to oblong, usually less than 15 mm wide; margins serrate; apex widely obtuse to rarely attenuate; midrib puberulent adaxially. Venation weakly to conspicuously anastomosing, most segments containing several areoles, often forming 1 row. Sori midway between margin and midrib or slightly closer to midrib, usually less than 3 mm diam., oval when immature. Sporangiasters absent. Spores less than 58 µm, verrucose, with surface projections to 3 µm. 2 n = 74.
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