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Aspens, Birches, Oaks Descr.
This a description of the leaves.
16
Agriculture
Intermediate
10/04/2017

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Term
American Basswood
Definition
This tree has alternate, simple fan-veined leaves with toothed margins. The leaves are very large and heart-shaped. The heart shape is usually not symmetrical. The bark is shallowly grooved and has nut-like fruits.
Term
Bur Oak
Definition
This trees has simple, alternate leaves with shallow lobes on the top and divided by two deep sinuses midway down the leaf. The fruit has a mossy fringe. The lobes do not have bristle tips.
Term
Red Maple
Definition
This tree has simple, opposite leaves that have shallow sinuses. The margins have 3 lobes usually that are toothed. The fruit is a double-winged samara. The buds are red and blunt.
Term
Boxelder
Definition
This tree has opposite, compound leaves with 3-5 leaflets. Leaflets often have lobes. The fruit is a double-winged samara.
Term
Bigtooth Aspen
Definition
This tree has simple, alternate fan-veined leaves. The veins are very prominent. The leaf has 5-15 pairs of large teeth and flattened leaf stalks (petioles). The bark has a yellow-green appearance and is used for pulpwood.
Term
Black Ash
Definition
This tree has opposite, compound leaves with 5-9 leaflets. The leaflets do not have petioles and are attached sessile. The bark is corky and it grows mainly in swamps and wet areas.
Term
Silver Maple
Definition
This tree has opposite, simple leaves with two very deep sinuses. The bark peels off exposing large brown areas. The fruit is a double samara.
Term
White Ash
Definition
This tree has opposite, compound leaves with 5-9 leaflets. The leaflets have stalks, the bark is furrowed forming an X-pattern. The leaf scar leaves a curved top or smiley face. The fruit is a single samara. Fall color is usually a bronze to reddish.
Term
Paper Birch
Definition
This tree has simple alternate leaves that are double-toothed. The bark is white and peels off in strips around the trunk. It is found on poor soils and has a short life span.
Term
Sugar Maple
Definition
This tree has simple, opposite leaves with smooth margins. The sinuses are moderately deep and the leaf usually has 5 lobes. The bark is dark and furrowed. The fruit is a double samara.
Term
Red Oak
Definition
This tree has simple, alternate leaves with lobes that all have bristle tips. The bark is very tight and appears reddish on the upper branches. The wood is commonly used to make furniture and flooring. The fruit is a common wildlife food.
Term
Quaking Aspen
Definition
This tree has a simple, alternate leaves that are fan-veined. The veins are very prominent. The petiole is flattened and very long compared to the leaf. This causes the leaf to tremble in the slightest breeze. The wood is used for pulp.
Term
Green Ash
Definition
This tree has opposite, compound leaves with 5-9 leaflets. The bark is tight and furrowed. The leaf scar is straight across the top. The fruit is a single samara.
Term
White Oak
Definition
This tree has alternate, simple leaves with moderately deep sinuses. The lobes do not have bristle tips. The bark is flaky and whitish in color. The fruit is preferred by wildlife. The wood is very hard and heavy and used to be used to build boats.
Term
Yellow Birch
Definition
This tree has a simple, alternate leaves that are double-toothed. The bark peels off in strips around the trunk and appears golden in color. Broken twigs have a wintergreen odor.
Term
Eastern Cottonwood
Definition
This tree has simple, alternate leaves with toothed margins. The leaf is spade-shaped. The fruit is a cotton mass that is dispersed by wind. Commonly found in windbreaks.
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