Rhizome very shortly creeping, bearing fronds close together, apices and bases of stipes densely covered with dark brown hairs. Fronds very large, climbing to more than 2 m; stipes at most 20 cm, stramineous to dark, densely pubescent throughout, very narrowly winged; rachis like upper part of stipes, 2-4 mm in diam., densely pubescent; primary rachis branches 8-15 mm, apex dormant, covered with dense brown hairs; secondary rachis branches pinnate to bipinnate, up to 25 cm long and wide; in larger ones tertiary rachis branches with few pinnae, forming a pentagonal outline, tertiary pinnae palmately 5-lobed to hastate, with large central lobes, deeply cordate at base, rounded or very moderately acute at apex; axes of branches of secondary and of higher orders stramineous, densely pubescent with pale unicellular hairs, with distinct articulation at every junction; ultimate lobes larger, oblong-subdeltoid to oblong, up to 20 × 4 cm, herbaceous to soft papery, irregularly and slightly dentate at margin, rounded at apex; stalks very narrowly winged, articulate at base of lamina, up to 15 mm; veins forked 3-4 times, all free; both surfaces of lamina as well as veins hairy. Sporangia-bearing lobes protruding at margin of ultimate lobes, 2-8 × ca. 1.2 mm; indusia hairy.
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