Taxonomic Studies on the Genus Vigna Savi (Fabaceae: Phaseoleae) in Telangana, India

The genus Vigna Savi is one of the economically and environmentally important genus of the family Fabaceae (Phaseoleae). It is distributed in tropical and subtropical regions of the world. In India, the genus is represented by 34 taxa, of which 16 taxa are endemic to the country. The present paper deals with the taxonomy of the genus Vigna based on live material and preserved specimens. According to the present studies, the genus contains 13 species in Telangana state of which three species namely V. indica, V. subramaniana and V. trinervia are reported here as additions to the flora of the state. Detailed morphology, taxonomic key to the species, field and germination photographs of all species are provided to facilitate easy identification.