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BIO 141 Living Earth - Tree Identification Exam
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White Pine
5 needles, longer, soft appearance

Red Pine
2 needs, stiff Appearance

Eastern Hemlock
1 needle, short and flat needle shape, white stripe underneat

Red Spruce
Round single needles, prickly, christmas tree shape

Balsam Fir
Flat single needles, soft, Christmas tree shape

Northern White Cedar
Flat scale like foliage

Larch
Deciduous, soft, shorter needles all around in clusters, woody nubs on twigs

Sugar Maple
Turns yellow/orange, clear sap

Red Maple
Reddish twigs, turns deep red, clear sap

Silver Maple
Silver sheen underneath, thinner shape, clear sap

Norway Maple
Tar spot fungus, white/milky sap

Ash
Compound opposite leaves, large buds

Mountain-Ash
Alternate compound leaves, small tree, small red/orange fruits

Northern Red Oak
Distinct leaf shape, produces acorns

American Beech
Smooth grey bark (unless diseased), long thin sharp buds

American Chestnut
Long leaves w/ teeth-like ridges, shrub-sized, round buds

Paper Birch
White bark peeling in sheets, egg-shaped leaves

Yellow Birch
Yellow bark peeling in strips, egg-shaped leaves

Gray Birch
White bark not peeling, triangular leaves

Trembling and Big Tooth Aspen
White-yellowish-greenish bark not peeling, egg-shaped leaves with little teeth (trembling) or oval leaves with big teeth (big tooth)

American Elm
Sandpapery leaves, crooked end bud

American Basswood
Heart-shaped large leaves w/ uneven bases
