Acer glabrum aka Rocky Mountain Maple

Acer glabrum, also known as California Mountain Maple, is a species of maple that is native to Western North America. It can be found in a range of states, from southeastern Alaska and British Columbia to New Mexico and Arizona. This small tree can grow up to 10 meters tall with a trunk diameter of up to 30 centimeters. Its leaves are 2-10 centimeters broad, three-lobed, and have a coarsely serrated margin. The flowers are produced in corymbs of five to ten and are yellowish-green. The fruit is a samara or winged seed. The leaves are bright green and shiny on top in spring, pale blue-green matte below and turn yellow, orange or red in autumn. This plant is easy to grow and needs regular watering to thrive, preferably in long-lasting, direct light. If you repot it each time it doubles in size, it shouldn't need added fertilizers. Male and female flowers appear on different branches of the same tree. The small yellow-green flowers are collected in several small dense corymbose inflorescences. This houseplant is a rare find and belongs to the Acer genus.