Rhizome short; creeping, up to 6 mm diam., phyllopodia up to 3 mm long, black, aerophores narrow, forming a wing which often extends beyond the point of articulation, rhizome densely set with dark brown lanceolate scales with few filamentous outgrowths at the base, variable in size, up to 5 x 0.8 mm; stipes caespitose, firm, shallowly sulcate ventrally, trophophyll stipe up to 150 mm long, sporophyll stipe usually longer than that of the trophophyll, up to 250 mm long, densely set with pale brown scariose lanceolate to narrow-lanceolate entire scales, variable in size, often reduced in number to the base of lamina, up to 4 x 0.8 mm; trophophyll simple, entireto shallowly crenulate, herbaceous, linear, attenuate to apex, longly decurrent to cuneate at base, midrib shallowly sulcate ventrally, up to 345 x 20 mm, venation free, ending in hydathodes near margin, ventral surface with numerous lanceolate to narrow-lanceolate scales, margins inrolled, variable in size, up to 1.2 x 0.4 mm, dorsal surface with stellate to lanceolate scales with filamentous outgrowths at base, margins inrolled, up to 6 x 0.4 mm, frequent; sporophyll simple, entire, herbaceous, lanceolate to linear, acute, base often oblique, midrib shallowly sulcate ventrally, up to 95 x 20 mm, venation free not ending in hydathodes, ventral surface glabrous; sori wholly acrostichoid, annulus large, 12-celled.
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Rhizome short, c. 3-8 mm in diameter, set with brown, lanceolate-acuminate, entire, hair-pointed rhizome-scales up to 65 x 7 mm. Fronds clustered, arching, firmly membranous; stipe stramineous to pale brown, set with persistent squarrose scales, stipes of fertile fronds much longer than those of sterile fronds, up to 180 mm and 70 mm long respectively; sterile lamina linear, acuminate, up to 290 x 17 mm, set with brown involute scales along midrib and smaller fimbriate scales on both surfaces and margins, base rounded cuneate not decurrent, margin entire or irregularly and shallowly undulate; fertile lamina very narrowly oblong, acute, up to 100 x 13 mm, base broadly cuneate to cordate-truncate.
Rhizome short, ± 3-8 mm in diameter, set with brown rhizome scales. Sterile lamina linear, acuminate, base rounded cuneate, lanceolate scales with fimbriate bases present. Scales longer than 1.5 mm.
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