What is the plant
is a species of maple native to western North America, from southeastern Alaska, British Columbia and western Alberta, east to western Nebraska, and south through Washington, Oregon, Idaho, Montana and Colorado to California, Arizona and New Mexico. Acer glabrum is a small tree growing to 10 metres (33 ft) tall, with a trunk up to 20–30 centimetres (7.9–11.8 in) diameter. The leaves are 2–10 centimetres (0.79–3.94 in) broad, three-lobed (rarely five-lobed), variable in the depth of lobing, occasionally so deeply lobed as to be divided into three leaflets; the lobes have an acute apex and a coarsely serrated margin. The flowers are produced in corymbs of five to ten, yellowish-green, at the same time as the new leaves in spring. The fruit is a samara or winged seed. These develop in pairs at an angle of less than 45° when mature
The leaves are 6–12 cm long, variable in shape, with 3–5 lobes, distinctly tripartite, sometimes consisting of three leaves. The edges are double serrated, the ends of the teeth are directed forward. The base of the leaf is cordate. The leaves are bright green and shiny on top in spring, pale blue-green matte below. In sumMale and female flowers appear on different branches of the same tree. Small yellow-green flowers are collected in several (no more than 10) in small dense corymbose inflorescences . Flowering begins simultaneously with the opening of the leaves. Small sepals and petals are yellowish-green in color
Fruits are double lionfish, with wings connected at an acute angle (from 45 ° to 80 ° ). The length of the winglet together with the nut is 2-3 cm, the width is up to 1 cm. The nuts are round, wrinkled, quickly turn brown , remain on the plant until autumn [mer, the leaves lose their luster, in autumn they turn bright yellow , orange or red . Leaves glabrous or rarely and shortly pubescent
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