Morphological characteristics
Astragalus, pinnate, with 13-27 leaflets, 5-10 cm long; petiole 0.5-1 cm; stipules free, ovate, lanceolate or linear-lanceolate, 4-10 mm long, below Being white pilose or subglabrous; leaflets elliptic or oblong-ovate, 7-30 mm long, 3-12 mm wide, apex obtuse or dimpled, with small pointed or obscure, base rounded, above Green, subglabrous, abaxially affixed with white pubescent. Racemes slightly dense, with 10-20 flowers; total pedicels and leaves nearly as long or longer, significantly elongated to fruit; sepals linear-lanceolate, 2-5 mm long, abaxially white pilose Pedicel 3-4 mm long, along with inflorescence axis slightly densely brown or black pilose; bracteoles 2; calyx campanulate, 5-7 mm long, outer white or black pilose, sometimes calyx tube subglabrous Only caries, hairs, short teeth, triangular to diamond-shaped, only 1/4-1/5 of the carious tube; corolla yellow or yellowish, flag petal obovate, 12-20 mm long, dimples apical, The base has a short petal shank, the wing flap is slightly shorter than the flag leaflet, the flap is oblong, the base has a short ear, the petiole is about 1.5 times longer than the flap, the keel and the leaf are nearly equal, the limb is semi-oval, Petals longer than petals; ovary stalked, puberulent. Capsule thin, slightly expanded, semi-ellipsoid, 20-30 mm long, 8-12 mm wide, apical at tip, both sides white or black short finely pilose, fruit neck exceeding enamel; seeds 3-8. Flowering from June to August, fruiting from July to September.
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