Similar Species: Similar to sugar maple (Acer saccharum). The 5 lobed leaves are dark green in summer. Young bark is olive to light brown and becomes gray and furrowed with age. This species tends to leaf out earlier in the spring than other maples and forms a broad-rounded crown. Norway maple tends to self sow and become weedy.Verticillium wilt (fungus) is a potential serious problem. Identified in winter by: individual buds that are green and red. Branching is opposite. The nutlets are equipped with fruit wings. While these trees have demonstrated invasive traits, there is insufficient supporting research to declare them so pervasive that they cannot be recommended for any planting sites. Its branches grow diagonally upwards, sometimes horizontally. The stem thickness of a maple tree ranges from 60 to 100 centimeters (23 to 40 inch). The immature Norway Maple’s bark is a thin layer in young trees. The color of the flowers ranges from yellow to green. The leaves of Norway maple are lobed with 5 to 7 pointed lobes. The flowers contain a lot of nectar - the flowering period is in the months of March to the end of May. use escape to move to top level menu parent. Norway maple is a deciduous broadleaf tree and can grow to 25m. The leaf buds are rounded. Although thought to have allelopathic properties (meaning that the plant releases toxins that inhibit or prevent the growth of other plants), research has not been able to … The mature tree has a rounded crown of dense foliage and the bark is grayish-black and furrowed. The bark of a Norway maple is grayish black and furrowed. Description. During the summer, fruits mature into helic… Unlike many other maples, mature trees do not tend to develop a shaggy bark. Bark is gray and fairly tightly ridged and furrowed. The petiole is long. Simple leaves in pairs (opposite); 3 to 6 inches long. Norway maple is a large shade tree usually growing 40-60 feet tall but can grow up to 90 feet or more. © Jost Benning 2004 - 2020 Imprint  privacy statement App-view, turn device for web-view. As … Norway maples have invasive traits that enable them to spread aggressively. From top level menus, use escape to exit the menu. However, Norway maple petioles secrete a The stems and branches release a white sap when broken. Norway maples have simple, green, and opposite leaves. The trunk bark of mature trees consists of gray ridges that are separated by narrow brown furrows; sometimes the ridges are interlacing. The twigs are light brown, shiny and with red-brown buds. The leaves are up to 18 cm (7.1 in) long. Leaves are slightly broader than those of sugar maple. Fruit are winged seeds in pairs (samaras);  each wing is 1-2 inches long and the two wings are spread at a wide angle.Green, maturing to brown. Use up and down arrow keys to explore within a submenu. growth of nearby plants. The bark of the maple tree is characterized by prominent furrows, the bark can show a light gray to greenish-gray color. When selecting a maple tree, be sure to select a species suited Tolerates pollution well. norway maple (Acer platanoides) leaf underside, norway maple (Acer platanoides) autumn colors are various, norway maple (Acer platanoides) yellow flowers, norway maple (Acer platanoides) leaves and fruits, norway maple (Acer platanoides) terminal bud, norway maple (Acer platanoides) axial buds, norway maple (Acer platanoides) tree in winter. Fruit are winged seeds in pairs (samaras);  each wing is 1-2 inches long and the two wings are spread at a wide angle. The bark of the maple tree is characterized by prominent furrows, the bark can show a light gray to greenish-gray color. Acer platanoides is a deciduous tree, growing to 20–30 m (65–100 ft) tall with a trunk up to 1.5 m (5 ft) in diameter, and a broad, rounded crown. The winter buds are shiny red-brown. Building the urban forest for 2050. Norway Maple Acer platanoides Maple family (Aceraceae) Description: This tree is 40-80' tall, forming a single trunk up to 2½' across and a globoid to ovoid crown. Naturalizing Norway maple could be confused with the native sugar maple. Leaves are slightly broader than those of sugar maple. The leaves are dark green, simple, opposite, 4”-7” wide with 5 lobes. New Hampshire and Massachusetts. It can range form yellow-green to a nice yellow. Use left and right arrow keys to navigate between menus and submenus. Review of risks should be undertaken before selecting these trees for planting sites. It can reach heights of up to 100 feet, but is commonly seen at 40 to 60 feet, with a trunk diameter of 1 to 2 feet. Anthracnose is a common leaf disease.Tar spot is becoming very common on this species. Norway maple forms monotypic populations by displacing native trees, shrubs, and herbaceous understory plants. 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