Sonchus L.
Publ. & Syn.Casual: Sonchus asper, S. oleraceus.
Chromosomes(1) 12 (2x). - Europe (N, W, C), Russia, Far East, Canada (E), Greenland. - Numerous reports, e.g., 29 counts from southern Sweden alone. For alpine plants in northern Europe: Knaben and Engelskjøn (1967); Lövkvist and Hultgård (1999).
(2) 24 (4x). - Europe (Finland). - Vaarama in Löve and Löve (1948); Sorsa (1963b).
GeographyAmphi-Atlantic (E) - European - Asian (W): ICE NOR RUS SIB** GRL*.
Parent taxonAsteraceae
Child taxa Sonchus arvensis L.
PAF ID8637
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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)