Synonyms for Service Tree (same or very similar meaning)
WordNet sense 1 (medium-sized European tree resembling the rowan but bearing edible fruit):
sorb apple, sorb apple tree, Sorbus domesticaWordNet sense 2 (any of various North American trees or shrubs having showy white flowers and edible blue-black or purplish fruit):
juneberry, serviceberry, shadblow, shadbushFrom the ODE community, based on WordNetadd/edit