Caudex short, erect; fronds strongly dimorphous. Sterile frond: stipe c. 5 cm long, basal scales less than 1 mm wide; lamina to 35 × 5 cm, widest above the middle, narrowed very gradually towards the base, apex hardly acuminate; main veins hardly prominent on the lower surface, always ± sinuous, free veinlets present in aréoles between them; both surfaces glabrous. Fertile frond: stipe c. 25 cm long, lamina to 25 × 2 cm; veins forming 3 rows of ± hexagonal aréoles between midrib and margin, one free vein in each aréole; sori on free veins in areoles; indusia elliptic in outline, c. 3-4x2 mm when young, firm and persistent.
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