The infraspecific variability of common rowan, Sorbus aucuparia Linnaeus (1753: 477) (Rosaceae), is extensive and puzzling. In Europe, populations from some higher mountains and the arctic zone are commonly separated… Click to show full abstract
The infraspecific variability of common rowan, Sorbus aucuparia Linnaeus (1753: 477) (Rosaceae), is extensive and puzzling. In Europe, populations from some higher mountains and the arctic zone are commonly separated as S. aucuparia subsp. glabrata (Wimmer & Grabowski 1829: 21) Hedlund (1901: 45) on the basis of its nearly glabrous leaves with more serrate dentation (Meusel et al. 1965; Warburg & Karpati 1968; Mossberg & Stenberg 2003), although intermediate forms are common with the type subspecies, S. aucuparia subsp. aucuparia , which is characterized by regularly hairy leaves with more obtuse dentation (Vuokko & Hamet-Ahti 1998).
               
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