Hypnum leucocladulum Müller Hal., Flora 58: 79. 1875

Plants pale yellow, green, or brownish, shiny. Stems erect-ascending, often filiform, branches of unequal lengths; pseudoparaphyllia broadly rounded-foliose. Stem leaves imbricate when dry, erect- spreading when moist, 1.1-1.2 mm; margins plane or somewhat recurved near base; apex broadly acuminate; alar cells subquadrate, small, region sizable; distal laminal cells linear, smooth, walls thick. Branch leaves 0.4-0.8 mm. Perichaetia with leaves pale, abruptly tapering, base sheathing, margins entire or nearly so, apex short-subulate. Seta smooth. Capsule 1.5-2 mm, neck short; stomata in neck; annulus well differentiated; exostome teeth pale yellow, cross striolate proximally; endostome basal membrane high, segments narrow, densely papillose, perforate along keel, cilia single, nodose. Calyptra unknown. Spores 12-19 µm, papillose.

Dry, shaded cliffs and boulders; moderate elevations (400-600 m); B.C.; Calif., Idaho, Oreg., Wash.