Bigtooth Maple

The western relative of sugar maple, sometimes classified as Acer saccharum subsp. grandidentatum. A small deciduous tree reaching about 20 feet, native from Wyoming south through Utah to New Mexico and northern Mexico. Leaves are 5 to 8 cm across with 3 (commonly) to 5 lobes, broad shallow sinuses, and a few widely spaced rounded teeth, dark green and lustrous above. The species name means 'big-toothed.' Flowers are small, yellow-green, in slender hanging clusters appearing with leaves. Samaras are often rose-colored in midsummer, about 2.5 cm long. Fall color runs orange, red, and yellow, comparable in intensity to its eastern cousin.

Hardy to Zone 4a. Part shade. Prefers well-drained soils and adapts to alkaline conditions, distinguishing it from sugar maple. Watch for leaf scorch during hot summer stretches on heavy clay in full exposure. One cultivar documented: 'Schmidt'. Nineteen diseases and fifteen pests at genus level; Verticillium wilt is the primary serious concern. Not commonly stocked in nurseries; may require special ordering.