In addition to solamargine and proto-dioscin, three new steroid glycosides, abutilosides A-C, have been isolated from roots of the Solanaceae Solanum abutiloides. The structure of abutiloside A has been elucidated as 3 beta, 16 alpha-dihydroxy-26-isovalerylamino-5 alpha,25 xi H-cholestan-22-one