Campylopus asperifolius Mitt., J. Linn. Soc., Bot. 12: 79. 1869. Syntypes. Ecuador, Andes Quitenses, Spruce 54; Chile, Andes Chilenses, Tatanara, Lechler 2627.

Campylopus trichophorus Hampe ex Herz., Biblioth. Bot. 87: 20. 1916. Type. Bolivia, Herzog 2858, 4447, 5055.

Plants medium to large, tufted, pale green to yellow; stems moderately red-tomentose, to 4 cm long. Leaves 4–6 mm long, erect-patent when dry, frequently with stiffly erect and wavy to twisted apex, erect-spreading when wet, lanceolate, ovate at base, concave below, serrate at the apex, at times serrulate in the upper 1/4; costa shortly excurrent, concolorous, 1/3–1/2 the leaf width at base, smooth or lightly mammillose on dorsal surface, in cross section guide cells well developed, ventral hyalocysts larger than guide cells, dorsal stereids well developed; median and upper cells obliquely rhomboidal, 12–20 µm long, all cells firm-walled, not porose (rarely with a few juxtacostal cells at the extreme base weakly porose); basal cells long rectangular, 60–100 µm long, cells at the margins narrower, and thinner but not hyaline or forming a distinct limbidium; alar cells red-brown, well-developed, extending to the costa. Brood leave commonly present in masses in the leaf axils at the stem apex. Sporophyte not seen.