1	Plants annual with roots; petals orange; achenes glabrous; persistent styles straight		10 A. aestivalis
+	Plants perennial with rhizome; petals white, blue, or yellow; achenes usually pubescent; persistent styles bent.		(2)
2 (1)	Leaves sessile to subsessile (occasionally shortly petiolate on A. bobroviana).		(3)
+	Leaves basally on stem petiolate, sometimes shortly petiolate apically on stem.		(6)
3 (2)	Leaves glabrous.		(4)
+	Leaves hairy.		(5)
4 (3)	Stems ca. 40 cm tall, 3--5 mm in diam.; stem leaves ca. 15; flowers 4--5.5 cm in diam.; sepals glabrous		8 A. sibirica
+	Stems 4--20 cm tall, 1.2--2 mm in diam.; stem leaves ca. 4; flowers 2.5--4 cm in diam.; sepals shortly ciliate		6 A. ramosa
5 (3)	Stems and leaves hairs glandular		7 A. bobroviana
+	Stems and leaves hairs eglandular		9 A. tianschanica
6 (2)	Petals white, pale blue, or pale purple.		(7)
+	Petals yellow.		(8)
7 (6)	Leaf blade pentagonal or triangular-ovate; petals white		1 A. davidii
+	Leaf blade oblong to narrowly oblong-ovate, rarely triangular; petals pale blue to pale purple		2 A. coerulea
8 (6)	Leaves abaxially pubescent when young		4 A. chrysocyathus
+	Leaves glabrous.		(9)
9 (8)	Stems 25--40 cm; sepals ca. 6, pale green, 0.7--1.2 cm		3 A. sutchuenensis
+	Stems 5--15 cm; sepals ca. 9, pale grayish purple, 1.4--1.8 cm		5 A. amurensis