1	Leaflets deeply divided up to the midrib, segments linear and revolute, achenes glabrous.		4 Potentilla Subgenus Fragariastrum Section Biflorae
+	Leaflets ¼ to ½ toothed, teeth ovate, not revolute, achenes pubescent or villose		(2)
2 (1)	Caudices with remnants of decurved petioles, stipules of basal leaves thick, connate and adnate to the petioles nearly to the middle, achenes pubescent.		4 Potentilla Subgenus Fragariastrum Section Curvisetae
+	Caudices without remnants of decurved petioles, stipules of basal leaves thin, connate and adnate to the petioles only at the base, achenes sericeo-villose.		4 Potentilla Subgenus Fragariastrum Section Eriocarpae