"Genus: Tephrosia Pers". Germplasm Resources Information Network. United States Department of Agriculture. 2007-10-05. Archived from the original on 2014-01-04. Retrieved 2014-04-05.
"Genus: Tephrosia Pers". Germplasm Resources Information Network. United States Department of Agriculture. 2007-10-05. Archived from the original on 2014-01-04. Retrieved 2014-04-05.