Rheum L.
Publ. & Syn.Casual: Rheum x hybridum.
Chromosomes40 42 (6x). - Europe (N), Siberia (N). - Zhukova (1969, 2n = 40); Borgen and Elven (1983).
Not included: The reports of octoploids (2n = 56) referred by Löve and Löve (1975a) at least partly belong to R. acetosella subsp. arenicola (e.g., those listed by Löve 1941b, 1942, 1943, 1957). The voucher of an northeastern Asian octoploid count reported by Zhukova (1968) should be investigated as should that of the 2n = 40 count of Zhukova (1969).
GeographyEuropean (N) - Asian (N/C): RUS SIB RFE?
Parent taxonPolygonaceae
Child taxa Rheum compactum L.
PAF ID4108
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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)