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Leaves - simple; opposite; edge lobed, with the lobes irregularly sharp-toothed and notched. Outline - roundish, with three to five lobes (the lowest pair, if present, the smallest); and with the hollows between the lobes pointed and usually extending less than half-way to the base of the leaf. Apex - of the lobes, pointed. Base - heart-shaped (or sometimes rounded.) Leaf/Stem - long and round. Leaf - (very variable in size and in the toothing and shape of its lobes); whitish beneath. Bark - smoothish; gray, becoming dark and rough with age. Flowers - rich crimson, on short stems in drooping clusters. March, April. Fruit - bright red, smooth, with stems two to three inches long. The wings are about one inch long. At first they approach each other, but afterward are somewhat spreading. September. Found - widely distributed in swamps and along streams especially in all wet forests eastward from the Mississippi to the Atlantic, and from Southern Canada to Florida and Texas. General Information - A tree thirty to sixty feet high, with wood of considerable value, especially when it shows a "curly grain." It is one of the very earliest trees to blossom in the spring, and to show its autumn coloring in the fall.

Genus Acer, L. (Maple)

Leaves - simple; opposite; edge lobed, with the lobes irregularly sharp-toothed and notched. Outline…

The leaf of a Norway Maple tree.

Norway Maple

The leaf of a Norway Maple tree.

The leaf of a Japanese Maple tree.

Japanese Maple

The leaf of a Japanese Maple tree.

The leaf of a Silver Maple tree.

Silver Maple

The leaf of a Silver Maple tree.

The leaf of a Red or Swamp Maple tree.

Red or Swamp Maple

The leaf of a Red or Swamp Maple tree.

The leaf of a Sycamore Maple tree.

Sycamore Maple

The leaf of a Sycamore Maple tree.

The leaf of a Sugar Maple tree.

Sugar Maple

The leaf of a Sugar Maple tree.

Maple seeds.

Maple Seed

Maple seeds.

"Section across a lake littoral zone, showing typical plant species." From left to right: tapegrass, yellow cow lily, maidencane, cattail, willow, bald cypress, and red maple. -Phelps, 1995

Lake Littoral Zone

"Section across a lake littoral zone, showing typical plant species." From left to right: tapegrass,…

"Accessory buds of box-elder (Negundo). A, front view of group; B, two groups seen in profile." -Bergen, 1896

Maple Buds

"Accessory buds of box-elder (Negundo). A, front view of group; B, two groups seen in profile." -Bergen,…

"Winged fruits. I, elm; II, maple." -Bergen, 1896

Winged Fruits

"Winged fruits. I, elm; II, maple." -Bergen, 1896

"The sugar maple tree resembles the sycamore, and abounds in the northern parts of the United States, and in the British possessions, where large quantities of sugar are made. "-Lupton

Gathering Sap to make Maple Sugar

"The sugar maple tree resembles the sycamore, and abounds in the northern parts of the United States,…

Silver maple not pruned since setting out.

Silver Maple Not Pruned Since Setting Out.

Silver maple not pruned since setting out.

Silver maple after severe heading back.

Silver maple after severe heading back.

Silver maple after severe heading back.

"1. Acer circinatum. 2. flower of A. campestre; 3. its samara; 4. the same, with the seed laid bare; 5. the embryo unfolded." -Lindley, 1853

Vine Maple

"1. Acer circinatum. 2. flower of A. campestre; 3. its samara; 4. the same, with the seed laid bare;…

The cecropia moth is one of the largest moths found in North America. It is a member of the Saturniidae family, or giant silk moths. Females with a wingspan of 130 mm or more have been documented. It is found as far west as the Rocky Mountains and north into the maritime provinces of Canada. The larvae of these moths are most commonly found on Maple trees, but they have been known to feed on Wild Cherry and Birch trees among many others.

Cecropia Moth

The cecropia moth is one of the largest moths found in North America. It is a member of the Saturniidae…

An illustration of the larva of a ceropia moth. The cecropia moth is one of the largest moths found in North America. It is a member of the Saturniidae family, or giant silk moths. Females with a wingspan of 130 mm or more have been documented. It is found as far west as the Rocky Mountains and north into the maritime provinces of Canada. The larvae of these moths are most commonly found on Maple trees, but they have been known to feed on Wild Cherry and Birch trees among many others.

Larva of Cecropia Moth

An illustration of the larva of a ceropia moth. The cecropia moth is one of the largest moths found…

The Leaf of Maple designs were often used on friezes, cornices, and columns.

Leaf of Maple

The Leaf of Maple designs were often used on friezes, cornices, and columns.

The Spray of Sugar Maple designs were often used on friezes, cornices, and columns.

Spray of Sugar Maple

The Spray of Sugar Maple designs were often used on friezes, cornices, and columns.

An illustration of a maple leaf.

Maple Leaf

An illustration of a maple leaf.

An illustration of the cotyledon of a maple. A cotyledon is a significant part of the embryo within the seed of a plant. Upon germination, the cotyledon may become the embryonic first leaves of a seedling.

Cotyledon of a Maple

An illustration of the cotyledon of a maple. A cotyledon is a significant part of the embryo within…

Color flag of Canada. Two vertical bands of red (hoist and fly side, half width) with white square between them; an 11-pointed red maple leaf is centered in the white square; the official colors of Canada are red and white.

Flag of Canada, 2009

Color flag of Canada. Two vertical bands of red (hoist and fly side, half width) with white square between…

Black and white outline flag of Canada. Two vertical bands of red (hoist and fly side, half width) with white square between them; an 11-pointed red maple leaf is centered in the white square; the official colors of Canada are red and white

Flag of Canada, 2009

Black and white outline flag of Canada. Two vertical bands of red (hoist and fly side, half width) with…

An illustration of a sugar-maple moth. A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. The differences between butterflies and moths are more than just taxonomy.

Sugar-Maple Moth

An illustration of a sugar-maple moth. A moth is an insect closely related to the butterfly, both being…

An illustration of a maple borer: a, larva; b, cocoons; c, moth; d, skin of chrysalis.

Maple Borer

An illustration of a maple borer: a, larva; b, cocoons; c, moth; d, skin of chrysalis.

The piped over-grainer is a brush that is used to create the shaped grain found in hardwoods such as mahogany, maple, and walnut. It is referred to as piper over-grainer because of the way the bristles are clumped together on the brush.

Piped Overgrainer

The piped over-grainer is a brush that is used to create the shaped grain found in hardwoods such as…

The piped over-grainer is a brush that is used to create the shaped grain found in hardwoods such as mahogany, maple, and walnut. It is referred to as piper over-grainer because of the way the bristles are clumped together on the brush.

Piped Overgrainer

The piped over-grainer is a brush that is used to create the shaped grain found in hardwoods such as…

The piped over-grainer is a brush that is used to create the shaped grain found in hardwoods such as mahogany, maple, and walnut. It is referred to as piper over-grainer because of the way the bristles are clumped together on the brush.

Piped Overgrainer

The piped over-grainer is a brush that is used to create the shaped grain found in hardwoods such as…

The piped over-grainer is a brush that is used to create the shaped grain found in hardwoods such as mahogany, maple, and walnut. It is referred to as piper over-grainer because of the way the bristles are clumped together on the brush.

Piped Overgrainer

The piped over-grainer is a brush that is used to create the shaped grain found in hardwoods such as…

The piped over-grainer is a brush that is used to create the shaped grain found in hardwoods such as mahogany, maple, and walnut. It is referred to as piper over-grainer because of the way the bristles are clumped together on the brush.

Piped Overgrainer

The piped over-grainer is a brush that is used to create the shaped grain found in hardwoods such as…

The piped over-grainer is a brush that is used to create the shaped grain found in hardwoods such as mahogany, maple, and walnut. It is referred to as piper over-grainer because of the way the bristles are clumped together on the brush.

Piped Overgrainer

The piped over-grainer is a brush that is used to create the shaped grain found in hardwoods such as…

This is a 6 part pipe over-grainer. It is used to create the shaped grain found in hardwoods such as mahogany, maple, and walnut. It is referred to as a piper over-grainer because of the way the bristles are clumped together on the brush.

Piped Overgrainer

This is a 6 part pipe over-grainer. It is used to create the shaped grain found in hardwoods such as…

The piped over-grainer is a brush that is used to create the shaped grain found in hardwoods such as mahogany, maple, and walnut. It is referred to as piper over-grainer because of the way the bristles are clumped together on the brush.

Piped Overgrainer

The piped over-grainer is a brush that is used to create the shaped grain found in hardwoods such as…

"Longitudinal radial section through the wood of a branch of maple one year old: P, pith; B, bark." -Century, 1889 In botany, Medullary rays refer to a characteristic found in woods. In this context the term refers to radial sheets or ribbons extending vertically through the tree across and perpendicular to the growth rings. Also called pith rays or wood rays, these formations of primarily parenchyma cells allow the radial transmission of sap.

Medullary Rays of Maple

"Longitudinal radial section through the wood of a branch of maple one year old: P, pith; B, bark."…

"Longitudinal tangential section of [maple], showing the ends of the medullary rays." - Century, 1889

Longitudinal Tangential Section of Maple

"Longitudinal tangential section of [maple], showing the ends of the medullary rays." - Century, 1889

Gall flies make galls on oak, maple and roses.

Galls and Insects of Rhodites Rosae

Gall flies make galls on oak, maple and roses.

The flowers of sweet gum are greenish yellow. The flowers bloom in spring. The tree somewhat resembles maple.

Female Flowering Branch of Sweet Gum

The flowers of sweet gum are greenish yellow. The flowers bloom in spring. The tree somewhat resembles…

The common name of abutilon is flowering maple. Abutilon is also sometimes called Chinese bellflower. The colors of the flowers are mostly yellow, white, and pink.

Flower of Abutilon

The common name of abutilon is flowering maple. Abutilon is also sometimes called Chinese bellflower.…

Abutilon megapotamicum has a drooping habit. The flowers are two to three inches long. The flowers are lemon yellow with a red calyx.

Abutilon Megapotamicum

Abutilon megapotamicum has a drooping habit. The flowers are two to three inches long. The flowers are…

The leaves of abutilon thompsonii are variegated with yellow. It is a variety of abutilon striatum.

Abutilon Thompsonii

The leaves of abutilon thompsonii are variegated with yellow. It is a variety of abutilon striatum.

Pictured is a pasture maple in autumn, showing the strong framework.

Pasture Maple

Pictured is a pasture maple in autumn, showing the strong framework.

Pictured is a pasture tree of sugar maple. The tree is more flatter topped than usual. Sugar maple is the common name of acer saccharum.

Sugar Maple

Pictured is a pasture tree of sugar maple. The tree is more flatter topped than usual. Sugar maple is…

Acer miyabei is a variety of maple. The tree grows up to forty feet tall and the branches are corky. The leaves are five lobed.

Acer Miyabei

Acer miyabei is a variety of maple. The tree grows up to forty feet tall and the branches are corky.…

Pictured is an upright tip shoot of Norway maple. Norway maple is the common name of <i>Acer platanoides</i>. The leaves are five lobed and light green.

Norway Maple

Pictured is an upright tip shoot of Norway maple. Norway maple is the common name of Acer platanoides.…

Pictured are several varieties of Japanese maple. These varieties include (a) acer palmatum, (b) acer japonicum, (c) acer palmatum variation atropurpureum, (d) variation ornatum, (e) variation Thunbergii, and (f) variation dissectum.

Japanese Maples

Pictured are several varieties of Japanese maple. These varieties include (a) acer palmatum, (b) acer…

The leaves of acer japonicum are 7-11 lobed and 3-6 inches across. The leaves are light green with silky hairs.

Acer Japonicum

The leaves of acer japonicum are 7-11 lobed and 3-6 inches across. The leaves are light green with silky…

Acer ginnala grows twenty feet tall. The leaves are three lobes. The flowers are yellowish and fragrant.

Acer Ginnala

Acer ginnala grows twenty feet tall. The leaves are three lobes. The flowers are yellowish and fragrant.

The common names of acer saccharinum are white or silver maple. The tree is large, about one hundred twenty feet tall. The leaves are deeply five lobed. The leaves are green above, silvery white beneath, and four to six inches long.

Acer Saccharinum

The common names of acer saccharinum are white or silver maple. The tree is large, about one hundred…

Red maple is the common name of acer rubrum. It is also known as scarlet or swamp maple. The flowers are red or scarlet. The flowers have five petals.

Red Maple

Red maple is the common name of acer rubrum. It is also known as scarlet or swamp maple. The flowers…

Common sugar maple and rock maple are the common names of acer saccharum. The leaves are 3-5 lobed and 3-6 inches long.

Common Sugar Maple

Common sugar maple and rock maple are the common names of acer saccharum. The leaves are 3-5 lobed and…

Black sugar maple is the common name of acer nigrum. The leaves are generally three lobed and five to six inches across. The tree has black bark.

Black Sugar Maple

Black sugar maple is the common name of acer nigrum. The leaves are generally three lobed and five to…

The acer nikoense tree is forty feet tall. The branchlets are covered in fine, short hairs. The leaflets are oval shaped and short stalked.

Acer Nikoense

The acer nikoense tree is forty feet tall. The branchlets are covered in fine, short hairs. The leaflets…

The common names of <i>Acer negundo</i> are ash-leaved maple and box elder. Pictured is a raceme of the young fruit of the tree.

Ash-Leaved Maple

The common names of Acer negundo are ash-leaved maple and box elder. Pictured is a raceme of the young…

Pictured is a group of old sugar maples with irregular and broken heads.

Old Sugar Maples

Pictured is a group of old sugar maples with irregular and broken heads.

Pictured are mite galls on maple. The galls are malformations or swellings caused by the insect.

Mite Galls on Maple

Pictured are mite galls on maple. The galls are malformations or swellings caused by the insect.

The tarspot disease of maple is caused by rhytisma acerinum. The diseased spots appear as blotches of tar on the upper surface of leaves.

Maple Leaf with Tarspot Fungus

The tarspot disease of maple is caused by rhytisma acerinum. The diseased spots appear as blotches of…

Pictured is the cross section of a maple limb affected by <I>Fomes igniarius</I>. A young spore is shown as just emerging at the top of the picture.

Fomes Igniarius Infected Maple Limb

Pictured is the cross section of a maple limb affected by Fomes igniarius. A young spore is shown as…

The yellow bellied woodpecker or sapsucker drills holes into valuable trees such as sugar maple, birch, and pine.

Yellow Bellied Woodpecker

The yellow bellied woodpecker or sapsucker drills holes into valuable trees such as sugar maple, birch,…