Sugar Maple
Acer saccharum
by Warren Fellerman
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The sugar maple is often called the sugar tree, hard
maple, and oak maple. The scientific name for the sugar maple is Acer
saccharum. It belongs to the class Magnoliopsida, order Sapindales, and
the family Aceraceae. The sugar tree is native in eastern Canada and the
United States. It is a native plant throughout the state of Virginia. The tree grows to a height of more than 100 feet and a
diameter of 3 feet or more. For the tree, best growth is made in moist,
rich, well drained soils, but the tree will live in poorer locations.
The bark on young trees is a light gray to brown and
rather smooth. As the tree grows older the bark breaks up into long
irregular plates or scales, which vary from light gray to almost black. The
twigs are smooth and a reddish brown and the winter buds sharp pointed.
The leaves are 3 to 5 inches across, with five pointed
and sparsely toothed lobes. The division between lobes is rounded. The
leaves are a dark green the on upper surface and lighter green beneath. The
leaves have 5 principal veins. The leaves are smooth above and below. The
leaves in autumn are brilliant shades of dark red, scarlet, orange and clear
yellow.
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The flowers are in bunches on
slender, hairy stalks 2-5 centimeters long. The flowers are a pale yellow,
with a five-lobed bell shaped calyx, 5 mm long. The flowers are without
petals. The trees bloom during April and through June. The fruit is a
paired key with two level slender wings 4 x 1 cm each. When mature they are
brown. Fruit is on the tree from June till September.
The Native Americans greatly
valued the sugar tree for the many uses they had for it. The sugar tree was
their main source of sugar. In addition, they used the wood of the tree to
make many things. The sap of the Acer saccharum is highly
valued to be processed into maple syrup. Also the tree is highly valued as a
source of hardwood. The wood is used in construction and in making
furniture.
Written spring 2004, as a service learning
project for Dr. Gary Coté's Biology 102 class at Radford University. Copyright
Pathways for Radford. |