![]() ![]() The flowers appear in early spring, before the leaves. It is hermaphroditic, bearing both male and female flowers in each raceme. In spring, the tree produces flowers in pendulous racemes 10–15 cm (4–6 in) long, greenish-yellow with inconspicuous petals. In autumn, the leaves turn gold and yellow, contrasting against backdrops of evergreen conifers. The stems are 15–30 cm (6–12 in) long and contain milky sap. The bigleaf maple has the largest leaves of any maple, typically 15–30 centimetres (6–12 inches) across with five deeply incised palmate lobes, with the largest running to 61 cm (24 in). The bark is gray brown, darkening and developing ridges with age. The previous national champion is located in Marion, Oregon, and is 27 m (88 ft) tall with a crown spread of 32 m (104 ft), with an average dbh of about 2.5 m (8 ft). It is 36 m (119 ft) tall with a crown spread of 28 m (91 ft), with an average diameter at breast height (dbh) of about 3.7 m (12 ft). The species' current national champion for size is located in Lane County, Oregon. Large Acer macrophyllum leaf in Washington State Description īigleaf maple can grow up to 48 metres (158 feet) tall, but more commonly reaches 15–20 m (50–65 ft) tall and 90–120 cm (35–47 in). Some stands are also found inland in the foothills of the Sierra Nevada of central California, and a tiny population occurs in central Idaho. It is native to western North America, mostly near the Pacific coast, from southernmost Alaska to southern California. 1784Īcer macrophyllum, the bigleaf maple or Oregon maple, is a large deciduous tree in the genus Acer. Acer flabellatum Greene 1912 not Rehder 1905. ![]()
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