Plum, Prunus domestica, is a deciduous tree in the family Rosaceae grown for its edible fruits. The plum tree has an erect growing habit with a spreading canopy. It possesses large, thick, oval-shaped leaves which are darker in color on the upper surface than on the lower and which often have a serrated edge.The tree produces buds on terminal spurs on the branches with each bud generally producing 3–5 flowers. The fruit is a fleshy oval fruit with a single seed contained within a stone. Read more here– https://plantvillage.psu.edu/topics/plum-and-prune/infos/diseases_and_pests_description_uses_propagation
RESOURCES:
https://enych.cce.cornell.edu/crop.php?id=49
https://www.yumpu.com/en/document/view/35089408/a-century-of-plum-breeding-at-geneva-new-york-state-