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Prunus × orthosepala or Prunus orthosepala, called the hybrid plum, is a species of shrubby plum native to North America, in the southern and central United States. It is a naturally occurring hybrid of Chickasaw plum, Prunus angustifolia, and American plum, Prunus americana, found where their ranges overlap.[1]

Prunus × orthosepala
Scientific classification edit
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Prunus
Subgenus: Prunus subg. Prunus
Section: Prunus sect. Prunocerasus
P. × orthosepala
Binomial name
Prunus × orthosepala


  1. ^ Lee, Sangtae; Wen, Jun. (2001). A phylogenetic analysis of Prunus and the Amygdaloideae (Rosaceae) using ITS sequences of nuclear ribosomal DNA. American Journal of Botany. 88(1): 150-160.