Stems with axillary hairs having brown to hyaline cells at the base, cells elongate distally but abruptly terminated by broadly rounded cells with a terminal beak, mucilage apparently extruded apically. Leaves not particularly brittle, ending in a mammillose, multistratose, obtuse subula without differentiated apical cells; costa poorly differentiated from the leaf lamina, strong from leaf insertion to apex; laminal cells with evenly thickened transverse and longitudinal walls, rounded, not pitted or sinuose. Capsule 0.6-1.5(-2) mm.