Stems tufted, forming loose or dense leafy mats, 2 to 7 inches high. Leaves alternate, linear, thick, fleshy, sharply pointed at the apex, sessile, one-third to three-fourths of an inch long, one-eighth of an inch wide or usually less, sometimes sparingly ciliate on the margins. Flowers several, corymbose, one-third to two-thirds of an inch broad on slender pedicels; petals five, oblong, yellow and often spotted with orange, longer than the ovate calyx lobes and alternate with them. Stamens ten; ovary almost superior, the two capsules united to above the middle.

On wet or dripping rocks, Newfoundland and Labrador to Vermont, northern and western New York, and west through Arctic America to the Rocky mountains. Also in Alpine and Arctic Europe and Asia. Flowering in July and August.

Memoir 15 N. Y. State Museum

Plate 82

B. Yellow Mountain Saxifrage

B. Yellow Mountain" Saxifrage - Leptasia aisoides