Objective 16.01 Describe types of tree species in the United States as related to their significance in the forestry industry.

Objective 16.01

Describe types of tree species in the United States as related to their significance in the forestry industry.

Hardwoods

Deciduous Trees Oaks, Maple, or

Walnut More expensive

wood

Softwoods

Have needles Have cones Also known as

evergreens or conifers

Don’t loose their leaves

American Holly

Also known as Christmas Holly

Spiny wavy-edged, glossy, dark green leaves

15-40 feet high, 1-2 feet wide

Ash

Used for: Handles Baseball bats

Resembles Oak Has a high

resistance to shock

Beech

Reach a height of 60 feet

Leaves turn bronze or tan in the fall

Birch

Used for furniture, plywood, paneling

Made into veneer Has white bark

Black Cherry

Also known as Wild Cherry

Reach height of 60-100 feet

Leaves are 2-6 inches long and ¾ - 1 ½ inches wide

Edges are toothed

Black Gum

Grows along swamp margins

Alternate leaves, roughly oval with short, blunt points

Turn scarlet in fall

Black Locust

Also known as yellow locust

Pinnately compound leaves made up of 7-19 leaflets

Twigs have spines

Black Oak

Leaves have 5-7 lobes

50-80 feet tall

Black Walnut

Black walnut leaves are alternate, pinnately compound

12 to 24 inches long, with 15 to 23 sharply oval, finely toothed, long-pointed leaflets 3 to 3 1/2 inches long.

Leaves turn a bright, clear yellow in autumn.

Chestnut Oak

Chestnut oak leaves are 4 to 8 inches long.

They are roughly oval but often are wider near the apex and are roughly round-toothed.

Undersides of leaves often are hairy.

Cottonwood

fastest-growing commercial forest species in North America,

one of the tallest trees of eastern forests, 200 feet tall

diameters of 4 to 6 feet leaves are roughly triangular,

toothed, pointed, 3 to 6 inches long, 4 to 5 inches wide, paler below than above and have a flattened stem

Cypress

found in deep swamps and on wet stream banks and wet bottomlands

The leaves are 1/2 to 3/4 inches long and are arranged in featherlike fashion along two sides of small branchlets,

Dogwood

It is a small tree, usually 10 to 20 feet tall and 4 to 6 inches in diameter

leaves are opposite and 3 to 5 inches long.

Elm

leaves are oval, and have a long, slightly curved point rough-textured and 4 to 6 inches long.

Leaf margins are sharply toothed.

Hemlock

flat round-tipped needles, 1/3 to 2/3 inches long

marked on the lower surface with two pale lines (stomata).

The pendant cones grow on short, slender stalks from the tips of branchlets, usually remaining on the tree until the following spring.

Hickory

leaves are 8 to 12 inches long with five (rarely 7) finely toothed, sharp-pointed, tapering leaflets. 

The fruit is globular to pear-shaped, 1 1/2 inches long and is enclosed in a thin husk that remains closed or opens only part way down the nut

Loblolly Pine

Loblolly pine needles occur in clusters of three. They are slender and stiff, 6 to 9 inches long and pale green

Long Leaf Pine

Longleaf pine has long, drooping, lustrous bright green needles. The needles are 8 to 15 inches long in three-leaf clusters found toward the ends of the stout branches.

Northern Red Oak

Flooring, furniture, fencing

Very strong wood leaves are 5 to 8

inches long and have seven to 11 lobes. Each lobe usually is

three-toothed,

Persimmon

The broadly oblong, pointed leaves are 4 to 6 inches long and 2 to inches wide.

The leaf has a smooth margin and a broad, flat midrib, with small, conspicuous dark veins on the underside.

Post Oak

Its leaves are 4 to 6 inches long and are deeply divided into five lobes the leaf has a cross-like appearance

bark is rougher and darker than the white oak and is broken into much smaller scales

Red Cedar

leaves average 1/16 inches in length and are opposite

40 to 50 feet tall

Red Maple

Used to construct butcher blocks, workbench tops, flooring

Red maple leaves are three- to five-lobed and have coarsely toothed margins

Redbud

The leaves are alternate, heart-shaped, smooth-margined, 3 to 5 inches long and wide.

They are glossy green, turning to a bright clear yellow in autumn.

Scarlet Oak

Its leaves are 4 to 7 inches long and 3 to 5 inches wide.

They have five to nine pointed lobes

Shortleaf Pine

Shortleaf pine needles are 3 to 5 inches long, slender, flexible, dark green

grow in clusters of two or three

Sourwood

It is a small tree, 8 to 12 inches in diameter and 30 to 40 feet

leaves are 3 to 6 inches long, simple, alternate, very acidic to the taste

Southern Red Oak

Two types of leaves: irregularly shaped

lobes that are mostly narrow and bristle tipped, with the central lobe often being the longest;

pear-shaped with three rounded lobes at the outer end.

Sweet Gum

star-shaped leaves Prickly fruit

Sycamore

multicolored, mottled bark most often is white

leaves usually are three- to four-lobed

Tupelo Gum

It inhabits only those deep river swamps or coastal swamps

Leaves are oblong and long-pointed at the end, 5 to 7 inches long and 2 to 4 inches wide

Virginia Pine

needles are 11/2 to 3 inches long, They grow in

bundles of two.

50 to 80 feet tall

Water Oak

grows along the borders of swamps and streams

leaves are small (2 to 4 inches long)

three indistinct lobes Leaves often remain

on the tree into early winter

White Oak

Used for: Structural timbers Flooring Fencing Pallets

Nearly waterproof because its pores are plugged with membranes

White Pine

Needles are 3 to 5 inches long. They grow in

bundles of five and have 3 to 5 white lines (stomata) on two surfaces of each needle

Willow Oak

Also known as water oak or pin oak

leaves are 2 to 5 inches long, narrow, smoothed-edged and tipped with bristle points

Yellow Poplar

Also known as Tulip tree or Tulip Poplar

Leaves have four large lobes

Southern Pine

Includes loblolly, longleaf, shortleaf, and slash pine

Most commonly used for pulpwood and plywood

Douglas Fir

The most important tree species in the US

Used for construction lumber and plywood

Frazier Fir

Used for commercial Christmas tree production

Grown in the North Carolina Mountains