Heuchera williamsii D. C. Eaton, Bot. Gaz. 15: 62. 1890

Leaves: petiole 1-6(-10) cm; blade 1-4 cm. Inflorescences scapose, 20-60 cm, minutely stipitate-glandular; bracts subtending pedicels scalelike. Flowers: hypanthium cylindric to obconic, 3-4 mm, stipitate-glandular; sepals rounded-oblong to ovate, 1-1.5 mm, apex rounded, long stipitate-glandular; petals erect, elliptic to narrowly spatulate with long claw, unlobed, 4-5(-6) mm; stamens included, 0.5 mm; stigmas sessile. Capsules elliptic, 6.5-10 mm. Seeds 50-100, 1-1.4 mm. 2n = 14.

Flowering early summer. Rock crevices, cliffs, mountain slopes; 500-2400 m; Alta.; Colo., Idaho, Mont., Wyo.

Conimitella williamsii is found in the Rocky Mountains.