Scientific Name
Torminalis glaberrima ‘Wild Service Tree’
The wild service tree is a member of the rose family and is most closely related to the whitebeam and mountain ash trees of the genera Sorbus and Aria, both of which are occasionally seen in our region, including here at Regis. In some areas, the tree, and sometimes its fruit, is known as “chequers” or “checkers.” It was recently placed in its own genus, Torminalis, due to distinctive features such as its simple, rather than compound, leaves. The species is native across much of central and southern Europe and extends into North Africa and western Asia, reflecting a broad adaptability.
This tree is rarely encountered in our region and was donated to Regis by Denver Botanic Gardens. In other parts of the world, it develops into a medium-sized tree, though its performance here is still being evaluated. So far, it has handled our hot summers well, showing no leaf scorch, and has come through five winters without branch dieback. It typically maintains an upright form with a strong central trunk.
The sharply lobed leaves bear some resemblance to those of certain maples, though unlike maples they are arranged alternately along the twigs. Fall color is often an appealing mix of pink, yellow and orange. In late spring, the tree produces clusters of creamy white flowers reminiscent of hawthorn and apple blossoms. These are followed by russet to brown pomes that, while less showy than those of related species, provide food for birds and small mammals. With age, the bark becomes scaly and flaky.