|Acer pectinatum subspecies forrestii, synonymous with Acer forrestii, is a deciduous, spreading tree with red, arching branches changing to green and white striped at maturity, with egg-shaped leaves to 5 inches long. Brownish green flowers appear in pendent racemes. The cultivar, 'Sirene' is a moderate size shrub, with open branches, growing to 20 to 25 feet. Leaves are dark greenish-purple when young maturing to very dark green. Bark is reddish-purple with white strips.