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A group of some half a dozen hybrids between Aronia and Sorbus – all shrubs or small trees. Where the whitebeam is the Sorbus parent the leaves are simple (× S. alpina and × S. dippelii). The other cultivated hybrids have Sorbus aucuparia or S. americana as the other parent, and the leaves are partly pinnate.
Although distinguished as early as 1789, Aronia was included in Pyrus or Sorbus until resurrected by Schneider in 1906; the hybrid genus × Sorbaronia was set up by him at the same time, but he never published a considered treatment of the group.