Sonchus arvensis L.
Publ. & Syn.L., Sp. Pl.: 793 (1753). Lectotype (LINN): Europe. Herb. Linn. 949.5 (Boulos 1961: 59, f. 1).
Chromosomes(1) 18 (2x). - Europe. - Shetty (1961); Sorsa (1963b).
(2) 45 (5x). - Canada. - Mulligan (1957).
(3) 54 (6x). - Europe. - At least four reports.
(4) >60. - Europe (C). - Tischler (1937).
Not included: A series of reports of diploids (2n = 18) under the name Sonchus arvensis from India, Taiwan, and China probably belong to something else. The diploid counts of Shetty and Sorsa are enigmatic.
GeographyEuropean - Asian.
Parent taxonSonchus L.
Child taxa Sonchus arvensis var. arvensis
Sonchus arvensis var. glabrescens Günth., Grab. & Wimm.
PAF ID863701
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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)