Rhizome scales basifixed, 17-28 by 2.5-4.5 mm, index 5-9, widest near the base, margin with hairs up to 1 mm long, apex acute to acuminate, midrib absent. Fronds: base fronds sessile, green, recurving when old, 90-115 by 90-135 cm, lower part with sinuose margin, upper part spreading, 3-6 a forked equally, basal fringe conspicuous. Foliage fronds maturing in symmetrical pairs, asymmetrical, 95-125 cm long, with 2 unequally long main lobes, each with a wide, horizontal soral patch and 2 lateral, pendulous lobes, those of the central main lobe forked 3-5 times, of the lateral main lobe forked 2-3 times. Hairs with 9-13 rays up to 0.3 mm long. Soral patch semicircular, 10-45 by 8-35 cm; sporangia with (16-)18-21 indurated annulus cells. Spores 64 per sporangium.
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