Verbatim text: Roberts, M. L., R. L. Stuckey, and R. S. Mitchell. 1981. Hydrocharis morsus-ranae (Hydrocharitaceae) new to the United States. Rhodora 83: 147--148.
Author: Roberts, M.L., Stuckey, R.L., Mitchell, R.S.
Year: 1981
Title: Hydrocharis morsus-ranae (Hydrocharitaceae) new to the United States
Journal: Rhodora
Volume: 83
Pages: 147–148