Heuchera richardsonii R. Br.

Heuchera richardsonii R. Br. in Frankl. Journey 766. 1823
•Acaulescent ; flowering branches 3-4 dm. high, scapiform, sparingly short-hirsute and glandular-puberulent above ; petioles glabrous or sparingly pubescent, 5-10 cm. long ; leafblades rounded-cordate, 3-6 cm. broad, with rounded lobes and broadly ovate mucronate teeth, sparingly hispidulous or in age glabrous, ciliate on the margin ; hypanthium deeply campanulate with turbinate base, very oblique, together with the sepals over 1 cm. long ; petals spatulate, purplish, slightly exceeding the oblong or slightly spatulate obtuse sepals;
stamens not exserted.
Type locality : On the rocky banks of rivers from latitude 54° to 64° north. Distribution : Subarctic America south to Manitoba, Black Hills of South Dakota and British Columbia.