Plants moderate-sized and moderately weak-stemmed to moderately stiff; green, brownish green to brown; capitulum flat-topped and 5-radiate, terminal bud often visible. Stems pale green, rarely with red coloration, superficial cortex of 2 layers of moderately to well differentiated cells. Stem leaves triangular to lingulate-triangular, equal to or more than 0.8 mm, spreading to appressed; apex acute to apiculate, hyaline cells mostly efibrillose and nonseptate. Branches ± straight and somewhat tapered, usually 5-ranked, leaves not greatly elongated at branch distal end. Branch fascicles with 2 spreading and 2-3 pendent branches. Branch stems green and often reddish at proximal end, with cortex enlarged with conspicuous retort cells. Branch leaves narrowly ovate-lanceolate, greater than 1.2 mm, straight, slightly undulate and weakly recurved when dry, margins entire; hyaline cells on convex surface with 1 pore per cell in apical end, on concave surface with round wall thinnings in the cell ends and angles; chlorophyllous cells in transverse section triangular to ovate-triangular and well-enclosed on the concave surface. Sexual condition dioicous. Spores 24-33 µm; finely papillose on the superficial surface.
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