Sophora viciifolia Hance synonym of Sophora davidll(Franch.) Skeels; Genus:Sophora; Family:Fabaceae alt.Leguminosae. Sophora davidii is the name accepted by ILDIS for the taxon located using your search string.

Three new lupin alkaloids, (-)-14β-hydroxysophoridine, (-)-12β-hydroxysophocarpine and (-)-9α-hydroxysophocarpine, were isolated from the seeds of Sophoraviciifolia together with 10 known lupin alkaloids, (+)-9α-hydroxymatrine, (-)-14β-hydroxymatrine, (+)-lupanine, (-)-5,6-dehydrolupanine, (-)-cytisine, (+)-matrine, (+)-matrine N-oxide, (-)-sophocarpine, (+)-sophocarpine N-oxide and (-)-sophoridine. 

Six alkaloids have been isolated from the flowers of Sophora viciifolia for the first time. Based on of physico-chemical methods and spectroscopic analysis, their structures have been identified as oxymatrine, oxysophocarpine, sophocarpine, matrine, sophoramine and sophoridine.