1	Calyx ca. 5 mm or longer		(2)
+	Calyx up to 4 mm		(10)
2 (1)	Leaflets touching, thickish, suborbicular to wider than long, 3-7 × 3-7 mm.		104 A. crassifolius
+	Leaflets not touching, narrowly elliptic to narrowly obovate		(3)
3 (2)	Calyx 8-9 mm; standard and wing limbs deeply cleft to 1/3 of their length.		109 A. laceratus
+	Calyx up to 7(-7.5) mm; standard emarginate, wing limbs rounded to emarginate		(4)
4 (3)	Plants 8-10 cm tall, vegetative parts covered with flattened acuminate hairs; peduncle 1.5-3.5 cm; wing limbs obtriangular, widest at deeply emarginate tip.		114 A. nigrodentatus
+	Plants distinctly taller, covered with terete hairs; peduncle at least 4 cm but mostly distinctly longer; wing limbs narrowly oblong to narrowly elliptic, rounded or slightly emarginate		(5)
5 (4)	Leaflets in 9-11 pairs, 5-10 mm; bracts ca. 2 mm, like calyx partly covered with reddish brown hairs; ovary hairy.		119 A. sedaensis
+	Leaflets in 5-9 pairs, often longer; bracts mostly longer, like calyx covered with white or black hairs; ovary and legumes glabrous or hairy		(6)
6 (5)	Calyx at least partly covered with spreading, flexuous, tangled hairs		(7)
+	Calyx covered only with appressed to subappressed hairs		(8)
7 (6)	Stem, rachis, and peduncle covered at least partly with spreading black hairs up to 0.7 mm, with some white hairs mixed in; calyx teeth 0.3-1 mm; ovary with a stipe ca. 1.5 mm, glabrous.		108 A. gongshanensis
+	Stem glabrous, rachis and peduncle only with appressed to slightly ascending white and black hairs up to 0.2 mm; calyx teeth 2-3 mm; ovary sessile, white hairy.		115 A. ohbanus
8 (6)	Petals yellowish green with violet keel; standard 10-11 mm, without distinct claw; ovary white hairy.		110 A. latiunguiculatus
+	Petals intensively blue to violet; standard 12-14 mm, with a short but distinct claw; ovary and legumes glabrous or black hairy		(9)
9 (8)	Plants covered with hairs 0.3-0.8(-1) mm; pedicels 2-5 mm; calyx teeth 0.5-2 mm, all crowded at dorsal side; legumes 10-12 mm, 5-6 mm high and wide, 2-locular, glabrous.		120 A. taipaishanensis
+	Plants covered with hairs 0.2-0.3 mm; pedicels ca. 1 mm; calyx teeth 1-3 mm, not crowded at dorsal side; legumes 4-10 mm, 3.5-4 mm high, compressed laterally, black hairy.		117 A. peterae
10 (1)	Stipules high connate behind stem		(11)
+	Stipules free from each other or rarely very shortly connate		(12)
11 (10)	Leaflets narrowly elliptic, 1.5-3.5 × 0.8-1.5 mm, adaxially hairy toward margins; standard ca. 9 mm; wing limbs obtuse; plants densely caespitose with very short non-flowering stems.		107 A. dutreuilii
+	Leaflets linear, 5-12 × 0.5-1.5 mm, glabrous adaxially; standard 7-7.5 mm; wing limbs emarginate to deeply incised; plants without short non-flowering stems.		106 A. daqingshanicus
12 (10)	Plants covered with distinctly flattened, often curved, tangled, only white hairs 0.1-0.3 mm; leaflets in (2 or)3(or 4) pairs.		116 A. pavlovii
+	Plants with terete hairs; leaflets in more pairs		(13)
13 (12)	Petals white with bluish tips or yellow, rarely with purple keel (see also alternative when dry)		(14)
+	Petals lilac, blue, or violet (in A. caeruleopetalinus and A. puberulus sometimes drying to yellow)		(17)
14 (13)	Leaflets in 8-11 pairs; petals whitish yellow; standard ca. 7 × 6 mm, limb orbicular, abruptly contracted into very short claw.		121 A. tsangpoensis
+	Leaflets in fewer pairs; petals of other color; standard limb elliptic to obovate		(15)
15 (14)	Leaflets linear, 5-6 × as long as wide, 8-15(-25) × 1-3 mm; petals white with bluish tips; legumes with a stipe ca. 2 mm.		111 A. lhorongensis
+	Leaflets elliptic to obovate, 2 × as long as wide or slightly longer; petals of other color; legumes sessile		(16)
16 (15)	Petals purple or yellow with purple keel; standard 9-11 mm, rounded or retuse; legumes 7-9 mm, incompletely to completely 2-locular, glabrous.		112 A. macropterus
+	Petals greenish yellow also when dry; standard 7-8 mm, deeply incised; legumes ca. 4 mm, 1-locular, on ventral side appressed white hairy.		102 A. alaschanus
17 (13)	Leaflets in 13 or 14 pairs, ca. 5 × as long as wide, 13-15 × 2-3 mm; legumes sparsely white hairy.		113 A. nangxianensis
+	Leaflets in up to 9 pairs, relatively wider; legumes (and ovary) glabrous or densely black hairy		(18)
18 (17)	Bracts 2-3 mm, subglabrous; calyx 3-4 mm; legumes with a stipe ca. 2 mm, 1-locular, densely appressed black hairy.		103 A. caeruleopetalinus
+	Bracts up to 1.5 mm, hairy; calyx at most up to 3 mm; legumes sessile or subsessile, incompletely to completely 2-locular (unknown in A. dabanshanicus), glabrous (including ovary)		(19)
19 (18)	Leaflets in up to 6 pairs; racemes short, dense; bracts and calyx black hairy.		105 A. dabanshanicus
+	Leaflets in up to 9 pairs; racemes up to 12-15 cm, loosely many flowered; bracts and calyx white and black hairy		(20)
20 (19)	Leaflets slightly more than 2 × as long as wide; petals purple or yellowish with purple keel; standard 9-11 mm.		112 A. macropterus
+	Leaflets 4-10 × as long as wide; petals pale lilac, sometimes pale yellow when dry; standard 5-7 mm.		118 A. puberulus