Plants small. Stems 0.1-0.6(-1) cm. Leaves concave, 0.3-0.8(-1.2) mm; margins plane, limbidium absent; apex often hyaline with age, along with distal 1/3 of lamina; costa highly variable, not reaching apex in proximal leaves to long-excurrent in distal leaves, awn hyaline or sometimes green, smooth to weakly denticulate, usually 1/3-2/3 leaf length; proximal laminal cells abruptly quadrate, 1-2:1; medial and distal cells short-rectangular to hexagonal, 12-18(-20) µm wide, (2-)3-4:1. Specialized asexual reproduction unknown. Capsule with endostome segments pale tan, brown, red-brown, or rarely pale yellow. Spores 8-12(-14) µm.
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