Plants delicate, light green. Leaves broadly linear to lanceolate, shortly subulate from broad base, acute; costae percurrent; margins entire; leaf cells (1--)3:1; perichaetial leaves subulate from sheathing base, abruptly differentiated. Seta 1--1.5 mm, straight, stout. Capsule hemispheric to broadly ovate, as long as broad, widest at mouth, peristome of 16 well-developed teeth; columella immersed. Spores 12--14 µm.

Calcareous substrates; B.C.; Alaska; Europe; Asia.

This species is known from only a few localities along the hyperoceanic West Coast. Seligeria acutifolia differs from closely related species in having sharply differentiated perichaetial leaves and a short, stout seta. The capsules are usually shortly exserted or sometimes emergent.