Plants in ± dense tufts, light green to yellowish brown, dull. Stems 1-9 cm, densely tomentose below with reddish brown rhizoids. Leaves erect-spreading, flexuose, ± curled at the tips when dry, slightly undulate or rugose, (2-)3.5-4.5(-7) × 0.5-1 mm, concave below, strongly keeled above, oblong-lanceolate, with a broad lanceolate base gradually narrowing to a short-acuminate apex; margins serrulate in the distal half, involute in central part; laminae 1-stratose, with a few 2-stratose regions; costa percurrent to shortly excurrent, 1/10-1/5 the width of the leaves at base, strong, smooth or papillose to toothed above on abaxial surface, abaxial ridges absent, with a row of guide cells, two thick stereid bands extending well into the apex, adaxial epidermal layer of cells not differentiated, the abaxial layer differentiated; cell walls between lamina cells strongly bulging; leaf cells papillose above on abaxial surface, sometimes nearly smooth; alar cells 2-stratose, differentiated, not extending to costa; proximal laminal cells elongate, pitted, (25-)41-56(-112) × (5-)6-7(-10) µm, abruptly shorter towards the apex; distal laminal cells quadrate, irregularly angled, rounded or rectangular, not or indistinctly pitted, cell walls unequally thickened, (5-)7-8(-20) × (5-)7-8(-12) µm. Sexual condition pseudomonoicous; dwarf males on stem rhizoids of female plants; interior perichaetial leaves abruptly short-acuminate, convolute-sheathing. Seta 1-4 cm, solitary, rarely 2 per perichaetium, yellowish. Capsule 1.5-3 mm, arcuate, inclined to horizontal, furrowed when dry, slightly contracted below the mouth, yellowish brown; operculum 1.5-2.5 mm. Spores 19-26 µm.
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