Pourthiaea

About

Pourthiaea is a genus of deciduous shrubs and small trees in the rose family (Rosaceae), tribe Maleae. Recent genetic studies have shown the genus to be monophyletic; prior to this, the genus was formerly treated either as a section within Photinia, or alternatively as a synonym of Aronia; some of the species have also been treated in Stranvaesia in the past.

Summary from Wikipedia