报道了内蒙古豆科黄耆属一新记录种——单小叶黄耆(Astragalus vallestrisKamelin).该种隶属于丁字毛类群的糙叶组(Sect.Trachycercis Bunge),最早发现于蒙古,最近的文献记载它在中国新疆有分布,而在内蒙古发现该种使其分布区有了新的扩展.
Astragalus vallestris Kamelin is reported from Inner Mongolia for the first time.Earlier this species was known from Mongolia,and only recently it was also recorded from Xinjiang,China.The discovery of this species in Inner Mongolia shows its range extension in China.