|The cultivar 'Exoniensis' has upright branches producing clustered, twisted and folded leaves. When young, it is narrowly columnar, broadening with age. This deciduous tree is grown for its graceful, weeping growth habit and its attractive foliage. It has twisted branches and dark matte-green, alternate, toothed leaves to 8 inches long which turn yellow in the fall. Tiny light yellow flowers are borne in abundant clusters followed by winged green fruit in late spring.