This subfamily, however, is to be called Amygdaloideae rather than Spiraeoideae under the International Code of Nomenclature for algae, fungi, and plants as updated in 2011.
[5] As traditionally defined, the Amygdaloideae includes such commercially important crops as plum, cherry, apricot, peach, and almond.
Further refinement[4] shows that Exochorda–Oemleria–Prinsepia is somewhat separate from Prunus–Maddenia–Pygeum, and that the traditional subfamilies Maloideae and Spiraeoideae must be included in Amygdaloideae if a paraphyletic group is to be avoided.
With this classification, the genus Prunus is considered to include Armeniaca, Cerasus, Amygdalus, Padus, Laurocerasus, Pygeum, and Maddenia.
This referred to shifting botanical opinion which had recently[8] reunited Amygdalaceae, Spiraeaceae, and Malaceae into Rosaceae (which matches de Jussieu's 1789 classification).