This subgenus includes plums, apricots and bush cherries.

Amygdalus are clustered with plum/apricot species according to molecular phylogenetic studies.

Prunus, thereby including almonds and peaches in this subgenus.

Amygdalus (L.) Focke which is monophyletic, but the incongruence between nuclear and chloroplast DNA phylogenies blurs the boundary between the two sections somewhat.

[2][6] The word "ămygdălus" is Latin for the almond nut.

[7] This section includes most Old World almond species except P. mongolica, P. tangutica, P. triloba, P. pedunculata, P. tenella, P. petunnikowii and probably other related species.

Prunocerasus Koehne includes New World plums and peachbush (P.

Therefore, their relationship with the sections proposed by Shi et al. (2013) is unclear.

Chamaeamygdalus (Spach) Dippel used to be included in the Amygdalus-Persica clade.

However, molecular phylogenetic research indicates that it should be excluded from the Amygdalus-Persica clade.

Louiseania (Carrière) Yazbek includes two or three Asian species.

[2][6][10][11][12][13][14][15][16] According to nuclear phylogenomic analyses, the type species of sect.

Microcerasus and closely related to the P. prostrata, the type species of sect.

However, in the phylogenetic tree based on plastid genome, P. triloba together with P. tomentosa (also a member of sect.

Microcerasus) and apricots is in a clade that is sister to the core part of sect.

[14][16] The incongruity is attributable to multiple hybridization events during the speciation of P. triloba, which probably involves species of sect.