the.com/sorbus

means Sorbus is the botanical genus covering rowans, whitebeams, and service trees — hardy deciduous trees known for clustered berries and toothed or lobed leaves.

from Sorbus is simply the classical Latin name for the service tree, used by Roman writers like Pliny for the fruit-bearing tree we'd recognize today. Latin botanists carried the word straight into scientific nomenclature when Linnaeus formalized plant genera in the 1700s, so the name has barely changed in over two thousand years — a rare case of a word outliving the empire that coined it.