Verbatim text: Hämet-Ahti, L. 1980. The Juncus effusus aggregate in eastern North America. Ann. Bot. Fennici 17: 183--191.
Author: Hämet-Ahti, L.
Year: 1980
Title: The Juncus effusus aggregate in eastern North America
Journal: Ann. Bot. Fennici
Volume: 17
Pages: 183–191