PAF: Galium trifidum subsp. columbianum (Rydb.) Hultén

	Galium trifidum subsp. columbianum (Rydb.) Hultén
Publ. & Syn.	Hultén, Fl. Aleut. Isl.: 367 (1937). - Galium columbianum Rydb., Fl. Rocky Mts.: 808 (1917). Holotype (NY): U.S.A.: Idaho, "Kootenai" Co., St. Joseph River, leg. Sandberg, MacDougal, and Heller 600.
Chromosomes	24 (2x). - Far East (N, S?), Canada (W). - Four reports.
Geography	Amphi-Pacific: ALA.
Distribution	N = S E = R AW = r [ key ]
Parent taxon	Galium trifidum L.
PAF ID	750106b

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Panarctic Flora Editor-in-Chief: Reidar Elven (Natural History Museum, University of Oslo)
Editorial Committee: Reidar Elven, David F. Murray (Museum of the North, University of Alaska), Volodya Yu. Razzhivin (Komarov Botanical Institute, Russian Academy of Sciences), Boris A. Yurtsev [deceased] (Komarov Botanical Institute, Russian Academy of Sciences)