1	Leaflets in 1-4 pairs		(2)
+	Leaflets in at least 4 pairs but mostly in distinctly more		(4)
2 (1)	Leaflets elliptic, ca. 2 × as long as wide; calyx 7-8 mm; standard 13-15 mm.		255 A. hamiensis
+	Leaflets linear to narrowly elliptic, ca. 6 × as long as wide; calyx 11-14 mm; standard at least 19 mm		(3)
3 (2)	Plants herbaceous; leaflets in 1-3 pairs, 10-45 × 2-6 mm; calyx teeth 4-5 mm; petals white, standard 19-21 mm; ovary and legumes subsessile, legumes 25-45 mm.		258 A. kifonsanicus
+	Plants subshrubby; leaflets in 3 or 4 pairs, 7-20 × 1-3 mm; calyx teeth 1-1.5 mm; petals pink to pale violet, standard 24-25 mm; ovary and legumes distinctly stipitate; legumes 12-15 mm.		253 A. chorgosicus
4 (1)	Petals all or only wings and keel pale yellow		(5)
+	Petals all white, pink, purple, or violet		(8)
5 (4)	Plants herbaceous, only with white hairs; standard ca. 15 mm.		263 A. shadiensis
+	Plants subshrubby, at least in calyx also with black hairs; standard at least 20 mm but mostly distinctly longer		(6)
6 (5)	Stipules 5-9 mm; bracts 4-5 mm; calyx covered with appressed to ascending, symmetrically or asymmetrically bifurcate, flexuous hairs; standard 25-27 × 10-11 mm.		262 A. maiusculus
+	Stipules distinctly shorter; bracts 1.5-2 mm; calyx covered with appressed, medifixed hairs; standard 20-24 × 7-8 mm		(7)
7 (6)	Stems very densely hairy; stipules 3-5 mm, those of lower leaves high connate; calyx 8-10 mm; limbs of wings minutely incised, wings and keel yellow, standard purple; legumes covered with ± symmetrically to slightly asymmetrically bifurcate, appressed hairs.		256 A. huochengensis
+	Stems loosely hairy; stipules 2-3 mm, shortly connate; calyx 11-13 mm; limbs of wings distinctly and often deeply obliquely incised, all petals pale yellow; legumes covered with strongly asymmetrically bifurcate, ascending to spreading hairs.		254 A. dsharkenticus
8 (4)	Leaflets adaxially glabrous or with a few scattered hairs only; calyx up to 8 mm; standard up to 14 mm		(9)
+	Leaflets distinctly hairy adaxially; calyx 9-12 mm; standard at least 16 mm but mostly longer		(10)
9 (8)	Stipules 5-7 mm, all high connate behind stem; bracts 2-4 mm; calyx 5-6 mm, covered with black hairs up to 1 mm and with strongly asymmetrically bifurcate white hairs up to 1.2 mm; legumes 25-30 mm.		260 A. leansanicus
+	Stipules 6-10 mm, only those of lowest leaves very shortly connate, all others free; bracts 5-10 mm; calyx ca. 8 mm, covered with medifixed only white hairs up to 0.8 mm; legumes ca. 15 mm.		264 A. supralaevis
10 (8)	Calyx teeth 4-5 mm; standard ca. 16 mm; legumes 17-20 mm, with a very short beak.		259 A. lanzhouensis
+	Calyx teeth 1-3 mm; standard 20-22 mm; legumes at least 22 mm but mostly distinctly longer, with a distinct beak 2-6 mm		(11)
11 (10)	Leaflets in 4-6 pairs; legumes sparsely covered with medifixed to asymmetrically bifurcate, appressed white hairs.		261 A. limprichtii
+	Leaflets in 6-10 pairs; legumes villous with asymmetrically bifurcate, subappressed to ascending or spreading white hairs up to 1 mm and with fewer, more appressed and shorter black hairs.		257 A. karkarensis