Stems ca. 0.8-1.2(-3) cm, leaves spreading, flexuose, and sub-falcate when wet, crisped and tortuose when dry, sparingly radiculose at the base. Leaves 6-7 mm, leaf base broader at the undulating shoulders than the extreme base, with a narrow, fragile decurrency, margins plane, distantly denticulate distally, sharply serrulate near the apex; basal cells smooth, elongate-rectangular to linear, 65-85 µm, narrowly long-rectangular, thin-walled, not porose, clear, medial lamina cells irregularly short-rectangular to subquadrate, 10-12.5 × 6-8 µm, thick-walled, 1-stratose except for irregular 2-stratose patches on the distal margins. Seta 10-12 mm, straight, single or occasionally clustered in groups of 2-4. Capsule yellow, 3-4 mm, deep red at the mouth, smooth to weakly and irregularly striate in older capsules; peristome inserted below the mouth; operculum ca. 0.8 mm.