Rubus riograndis is a North American species of dewberry in section Verotriviales of the genus Rubus, a member of the rose family. It has been found only in Texas in the south-central United States.Biota of North America Program 2014 county distribution mapBailey, Liberty Hyde 1941. Species batorum. The genus Rubus in North America. Vol. IV. Verotriviales. Gentes Herbarum 5: 199-228
References
External links Lady Bird Johnson Wildflower Center, University of Texas