Rhizome-scales 4-5 mm long, narrow, dark-clathrate with paler edges bearing some hairs; fronds often 3 close together. Bathyphylls (New Guinea) with closely-placed strongly toothed pinnae which are commonly c. 20 by 6 mm; apical pinna jointed to rachis on fronds with 12 pairs of pinnae. Sterile acrophylls: middle pinnae subsessile, to 12 by 2 cm, rather thin with distinctly raised veins, base rather broadly cuneate on acroscopic side, narrower and cuneate to narrowly rounded on basiscopic, edges entire or somewhat toothed towards apex. Fertile fronds: pinnae to 9 cm long and 2-3 mm wide, usually stalked.
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