Verbatim text: Geltman, D. V. et al. 2011. Typification and synonymy of the species of Euphorbia subgenus Esula (Euphorbiaceae) native to the United States and Canada. J. Bot. Res. Inst. Texas 5: 143–151.
Author: Geltman, D.V.
Year: 2011
Title: Typification and synonymy of the species of Euphorbia subgenus Esula (Euphorbiaceae) native to the United States and Canada
Journal: J. Bot. Res. Inst. Texas
Volume: 5
Pages: 143–151