Thuidium recognitum var. radicans Kindberg, Rev. Bryol. 19: 103. 1892; T. philibertii Limpricht; T. recognitum subsp. philibertii (Limpricht) Dixon

Stem leaves (1-)1.2(-1.5) mm; apex ending in hyaline point of 2-8 1-seriate cells. Perichaetial leaves with margins usually not ciliate, sometimes sparsely so, rarely copiously ciliate.

Capsules mature fall-winter. Calciphile, soil, humus, rock, logs in swampy places; low to high elevations; Alta., B.C., Man., Nfld. and Labr. (Nfld.), N.S., Ont., Yukon; Alaska, Iowa, Maine, Mich., Minn., N.J., N.Mex., N.Y., S.C., S.Dak., Va., Wis.; Mexico; South America (Peru); Europe; Asia.

Variety radicans intergrades with var. delicatulum. The annulus of var. radicans is of two or three rows of cells scarcely differentiated from suboral cells, and this character is sometimes of aid in distinguishing it from var. delicatulum.