Stems forming loose mats; branches lax, tips barely, if at all ascending. Leaves loosely appressed; blade linear to subulate, 2-3 × 0.5-0.8 mm, (ciliolate), apex acute. Pedicels (deep red), 0.7-1.5 cm, 3+ times longer than leaves at anthesis. Flowers erect; sepals ovate, ca. 2 mm; corolla white, ca. 4 × 3 mm, lobes distinct for ca. 1/2 their lengths, tips not recurved; stamens to 1.5 mm. Capsules 2-3.5 mm diam. 2n = 32, 48.
Flowering Jul-Aug. Damp, sheltered places in tundra at lower elevations, and in alpine or subalpine meadows, often in damp soil where snow drifts form; 50-1900 m; Greenland; Nfld. and Labr., N.W.T., Nunavut, Que.; Maine, N.H., N.Y.; n Europe.
Harrimanella hypnoides has not been collected in New York state in more than a century and is presumed extirpated there.
Stems 2-20 cm; lvs 2-4 mm; pedicels erect, 5-20 mm; cor nearly 1 cm; 2n=32, 48. Circumboreal, s. to alpine summits of Me., and (?) N.Y., and to the n. shore of Lake Superior. July, Aug. (Cassiope h.)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.