Rhizome scales basifixed to peltate, 1.5-11 by 0.3-1.3 mm, index 3-8(-25), widest at the base or occasionally at or above the middle, margin with hairs to 1 mm long, midrib present. Fronds: base fronds withering, erect or appressed when old, 18-60 by 8-45 cm, upper part entire to dichotomously forked with unequal lobes, veins immersed, basal fringe inconspicuous. Foliage fronds maturing subsequently, erect, spreading or pendulous, usually asymmetrical, 25-100 cm long, 2-5 e forked. Soral patches 1-10, apically on the lobes, 1-22 cm long; sporangia with 18-22 indurated annulus cells. Spores 64 per sporangium.
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