Plants in open tufts or extensive mats, black, dark olivaceous, or brownish-olivaceous. Stems 1.8-12 cm, central strand weak or absent. Leaves usually somewhat curved, rarely secund, ovate-lanceolate, sharply keeled distally, 1.7-2.7 mm, 1-stratose; margins usually recurved throughout and denticulate distally, 1-stratose or 2-stratose; apices acute; costa percurrent or excurrent as a short, denticulate, weakly decurrent awn, abaxial surface usually weakly papillose; basal marginal cells quadrate or short-rectangular, sometimes trigonous; distal laminal cells mostly short-rectangular, 8-10 µm wide, usually trigonous, sinuose. Sexual condition autoicous. Capsule red-brown, cylindric to short-cylindric, rarely cupulate, 0.7-1.2 mm, sometimes ribbed when dry; columella persistent within capsule; exothecial cells mainly isodiametric, sometimes mixed with short-elongate cells, thin-walled, trigonous; stomata present; peristome erect or ascending, often twisted inwards and overlapping distally, forming a dome, 400-700 µm, red, finely papillose, rarely with a few narrow slits. Spores 9-13(-19) µm, granulose or nearly smooth.
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