Fifteen bases have been isolated from Thalictrum minus, and of these aromoline, N-methylargemonine, thalbadenzine, corunnine, and thaliximidine have been detected in this plant for the first time. Eleven bases have been isolated from Thalictrum foetidum, with harmine and oxoglaucine detected for the first time in the genus Thalictrum. From the epigeal parts of Haplophyllum perforatum collected in the Baisun region of Surkhandar'ya province and in Chimgan during the budding and incipient flowering period, skimmianine, evoxine, 7-isopentenyloxy-T-fagarine, the lignan eudesmine, and alkaloids perfamine, flindersine, and haplamine were isolated and identified by direct comparison with authentic samples.