Plants robust to quite robust. Stems 5--16 cm. Leaves distant, widespread, catenulate, sometimes falcate, distalmost leaves spiraled around stem, broadly ovate lanceolate, pluriplicate. Capsule 2.5--3.5 mm.

Capsules mature June--Sept. Seeps, exposed slopes or mountain meadows; 0--2940 m; Alta, B.C., N.B., Ont., Que.; Alaska, Calif., Colo., Idaho, N.Y., Oreg., Utah, Wash.

This variety, which includes the largest plants in the genus in North America, can be recognized on the basis of the robust habit, distant, catenulate leaves with the distalmost leaves spiraled around the stem.