Main stems to 20 cm or more long, rooting at intervals. Branchlet systems scattered or grouped, erect or sometimes lax, 8–50 cm long, unbranched or branched once or twice. Leaves densely spirally arranged, imbricate, spreading or recurved towards tips, linear-subulate to linear-lanceolate, 4–8 mm long, 0.5–0.7 mm wide, pale green to yellowish green; bases decurrent. Strobili solitary, to 20 mm long. Sporophylls imbricate, ovate, acuminate, spreading at maturity, brown; margins lacerate to irregularly serrate.
Terrestrial, growing among sedges and shrubs, in wetlands and on streambanks. Often growing from a moss or peat substrate. In tropical Queensland it occurs in high montane areas, in temperate Australia it extends to lower altitudes.