Verbatim text: Nordborg, G. 1967. The genus Sanguisorba section Poterium: Experimental studies and taxonomy. Opera Bot. 16: 1–166.
Author: Nordborg, G.
Year: 1967
Title: The genus Sanguisorba section Poterium: Experimental studies and taxonomy
Journal: Opera Bot
Volume: 16
Pages: 1–166