low-growing ash of Texas tree having wood similar to the alpine ash; tallest tree in Australia and tallest hardwood in the world any of various trees of the genus Sorbus
n. Any of various deciduous trees of the genus Sorbus, such as the rowan, having clusters of small white flowers and bright orange-red berries arranged in clusters. a type of tree with red or orange-red berries. Any of several shrubs or trees of the genus Sorbus, in the rose family, native to the Northern Hemisphere. They are widely cultivated as ornamentals for their white flower clusters and bright-orange fruits. Most noteworthy are the handsome American mountain ash, or dogberry (S. americana), and European mountain ash (S. aucuparia), also called rowan, or quickbeam. The European species grows to 60 ft (18 m), twice as high as the American species