1	Petioles with long, 3-4 mm spreading hairs.		(2)
+	Petioles with c. 1-2 mm (pilose) hairs, generally adpressed, or floccose-tomentose.		(3)
2 (1)	Underside of the leaflet sparsely tomentose without floccose hairs with glands under the tomentum, sepals and carpels with prominent yellowish glands, petals c. 5 mm long.		32 Potentilla x agrimonioides
+	Underside of the leaflets densely tomentose with floccose hairs, glands under the tomentum absent, sepals and carpels eglandulose, petals 8-9 mm long.		29 Potentilla plurijuga
3 (1)	Leaves 2-paired, petioles and upper surface of leaflets floccose.		31 Potentilla hololeuca
+	Leaves 3-5 paired, petioles and upper surface of leaflets pilose or minutely pubescent.		(4)
4 (3)	Rootstock profusely branched, tufted, leaflets 2/3-3/4 divided.		30 Potentilla pamirica
+	Rootstock generally unbranched, rarely poorly branched, leaflets divided nearly to the midrib, segments distant.		(5)
5 (4)	Plants 5-8 cm, calyces with distinct pale yellow glands, petals small 3.0-3.5 mm long .		28 Potentilla exigua
+	Plants 12-20 cm, calyces eglandulose, petals 5-7 mm long.		(6)
6 (5)	Leaflet with 2-4 pairs of segments, segments oblong-linear, slender.		26 Potentilla multifida
+	Leaflets with 5-10 pairs of segments, segments oblong-ovate acute coriaceous.		27 Potentilla ornithopoda