USF database (Herbarium database) USA
Atlas of Florida Vascular Plants (http://florida.plantatlas.usf.edu/)
Author(s):—R.P. Wunderlin & B.F. Hansen
Publication:—USF Water Institute. Institute for Systematic Botany, University of South Florida, Tampa (2015).
Url.: http://florida.plantatlas.usf.edu/Specimen.aspx