Blechnum chambersii

Rhizome erect to oblique, short. Fronds tufted, erect to spreading, firm in texture, 15–55 cm tall; sterile and fertile fronds dissimilar. Stipe short, pale to brown; scales few, shiny, very narrow. Sterile frond lamina lanceolate, widest near centre, reducing rapidly towards apex and more gradually towards base, once pinnate, dark green; pinnae close-set, forwardly curved, attached by broad bases, narrowly oblong, margins bluntly serrate, apices acute to rounded; lower pinnae much reduced in size, sometimes forming irregular wing on rachis. Fertile fronds flaccid, shorter than sterile fronds; pinnae numerous, separated, curved, very narrow. Sori covering underside of lamina on each side of midvein.