service tree vs Sorbus domestica

service tree and Sorbus domestica both are nouns.

Word	Noun	Adjective	Verb	Adverb
service tree	Yes	No	No	No
Sorbus domestica	Yes	No	No	No

As nouns, service tree and Sorbus domestica are synonyms defined as:

service tree and Sorbus domestica: medium-sized European tree resembling the rowan but bearing edible fruit

Other synonyms of service tree include sorb apple, sorb apple tree.

service tree (noun)	Sorbus domestica (noun)
medium-sized European tree resembling the rowan but bearing edible fruit	medium-sized European tree resembling the rowan but bearing edible fruit
any of various North American trees or shrubs having showy white flowers and edible blue-black or purplish fruit