Verbatim text: Crow, G. E. and C. B. Hellquist. 2000. Aquatic and Wetland Plants of Northeastern North America.... 2 vols. Madison. Vol. 1, pp. 414–415.
Author: Crow, G.E., Hellquist, C.B.
Year: 2000
Title: Aquatic and Wetland Plants of Northeastern North America
Volume: 1
Pages: 414–415