| − | Potentilla rupestris, Linn. Caudex thick, subligneous: sts. erect, 20 in. high or more, few-lvd., dichotomously branched and laxly corymbose above, glandular-hairy and hirsute: basal lvs. long-petioled, pinnate; lfts. 2 - 4 pairs, decreasing downward, distant, round-elliptic or rhombic-ovate, lateral sessile, terminal sessile or stalked, margin irregularly biserrate, pilose and green on both faces, often glandular: fls. 1/2 - 1 in. broad, long- pedicelled; appendages much shorter and narrower than the sepals, often bi- or trifid; petals obovate, entire, equaling or much exceeding the sepals, white; carpels smooth or rugulose; style subbasal, glandular-thickened in the middle. May-July. Eu., Asia, and mountains of W. N. Amer. Grows well in dry soil.
| |