Rhizome scales basifixed, 14-26 by 1.5-3 mm, index 7-12, widest near the middle, margin with hairs up to 0.5 mm long, apex acute to acuminate, a narrow midrib present in the upper part. Fronds: base fronds sessile, green, recurving when old, 100-125 by 100-135 cm, lower part with sinuose margin, upper part spreading, 4-6 p forked equally, basal fringe conspicuous, small appendages (‘aphlebia-like structures’) present near the attachment. Foliage fronds maturing in symmetrical pairs, asymmetrical, 50-135 cm long, with two unequally long main lobes, each with a wide, horizontal soral patch and two lateral lobes, those of the central main lobe pendulous, forked 3-4 times, of the lateral main lobe simple, very short. Hairs with 7-13 rays up to 0.5 mm long. Soral patch semicircular to transverse-angustate, 7-33 by 20-60 cm; sporangia with 26-28(-30) indurated annulus cells. Spores 64 per sporangium.
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