The Sugar Maple flowers in mid- to late-spring, producing tiny greenish yellow flowers with five sepals. Sugar Maple leaves turn red, yellow, or orange in autumn, contributing to the brilliant palette of colors seen in September and early October in the Adirondacks. The upper surface of a Sugar Maple leaf is green in the summer the lower surface is pale green to whitish. There is a moderately deep U-shaped notch ( sinus Sinus: In leaves with lobes, the indented area between two lobes.) between the lobes. Lobed leaves are leaves with distinct protrusions, either rounded or pointed. Each of the largest three lobes Lobe: A projection from an edge of a plant structure (such as a leaf), larger than a tooth. The leaves of the Sugar Maple usually have five squarish, shallow lobes. Like other maples, Sugar Maples have opposite Opposite Leaves: Leaves occurring in pairs at a node, with one leaf on either side of the stem., lobed leaves. Sugar Maple that grow in the open are oval in shape, with upswept lower branches and straight upper branches.
Sugar maple leaf free#
Forest-grown Sugar Maples are generally free from branches on the lower third to two-thirds of the tree, with a narrow, rounded crown. The branches are opposite, meaning that they emerge in pairs, opposite one another.
The mature Sugar Maple is a large tree, growing 50-70 feet tall, with a straight, single trunk.
Sugar Maple on the John Brown Farm Trails (23 September 2011). Trees of the Adirondacks: Sugar Maple leaves turn red, yellow, or orange in the fall.
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