'Keithsform' is a cross between the Shantung Maple (Acer truncatum) and the Norway Maple (Acer platanoides). It is a rounded, upright grower that can reach a height of 35 feet with a spread of 25 feet. Its dark green lobed foliage turns bright orange and red in the fall. It is hardy to Zone 5, prefers full sun, slightly acidic soils but will adapt to other soil types.