Amelasorbus 'Jackii' is a small two-metre tree belonging to the Rosaceae family. Originally from the northern United States, this shrub is called a "hybrid" because it is the result of a cross between Amelanchier Alnifolia and Sorbus Scopulina. It is a plant covered with pretty little white flowers and deciduous and petiolate leaves. It is in season from April to May and also produces fruits called " piridions ". The latter are described as being complex pome fruits consisting of the floral receptacle that has become fleshy, welded to the ovary.