It is naturalised in parts of North America. It is the most cold-tolerant maple, hardy to zone 2. Cultivation and uses Īcer ginnala is grown as an ornamental plant in northern regions of Europe and North America. tataricum, which has matte, unlobed or only shallowly lobed leaves. Īmur maple is closely related to Acer tataricum (Tatar maple), and some botanists treat it as a subspecies A. The fruit is a paired reddish samara, 8–10 mm (0.31–0.39 in) long with a 1.5–2 cm ( 5⁄ 8– 3⁄ 4 in) wing, maturing in late summer to early autumn. The flowers are yellow-green, 5–8 mm (0.20–0.31 in) diameter, produced in spreading panicles in spring as the leaves open. The leaves turn brilliant orange to red in autumn, and are on slender, often pink-tinged, petioles 3–5 cm ( 1 + 1⁄ 4–2 in) long. The leaves are opposite and simple, 4–10 cm ( 1 + 1⁄ 2–4 in) long and 3–6 cm ( 1 + 1⁄ 4– 2 + 1⁄ 4 in) wide, deeply palmately lobed with three or five lobes, of which two small basal lobes (sometimes absent) and three larger apical lobes the lobes are coarsely and irregularly toothed, and the upper leaf surface glossy. The bark is thin, dull gray-brown, and smooth at first but becoming shallowly fissured on old plants. It is a small maple with deciduous leaves that is sometimes grown as a garden subject or boulevard tree.Īcer ginnala is a deciduous spreading shrub or small tree growing to 3–10 m (9.8–32.8 ft) tall, with a short trunk up to 20–40 cm (8–16 in) diameter and slender branches. Acer ginnala, the Amur maple, is a plant species with woody stems native to northeastern Asia from easternmost Mongolia east to Korea and Japan, and north to the Russian Far East in the Amur River valley.
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