are perennial, woody plants that grow to be at least 20 feet tall and have a single main stem, or trunk.
top portion of a tree, which includes the tree's leaves, twigs, flowers, and fruits.
has several main branches close to the ground.
tree's which reproduce by seeds formed in flowers, also called broadleaf trees and hardwood trees.
regardless of the wood's actual hardness
losing their leaves in the fall and staying bare all winter.
gymnosperms with a cone-shaped reproductive structures.
the tallest trees species.
producing male and female reproductive parts on two separate trees.
they resemble leaflets of maidenhair fern.
like roots of herbaceous plants, tree roots occur as either taproots.
three important functions a root root performs
absorb water and minerals, anchor the tree firmly in the soil, and store food.
the rough outer covering of a tree.
composed of vascular phloem tissues that transport food from the leaves to the roots.
ring of growth cells separates the bark layers from the woody tissues of a tree trunk
main tissue of a trunk that consists of xylem tissue made of dead cells lined end to end to transport water and minerals up to the leaves.
annual growth rings
layers of wood gradually increases the diameter of the trunk.
made of larger xylem vessels, its light color.
consist of small xylem vessels and is darker because of its closely compacted cells.
the central core of a young woody stem.
deposits harden and darken the wood and is inactive dead wood.
wood surrounding the dead heartwood.
oldest known living things on earth.
found at the end of a twig, allows the stem to grow in length.
cover the terminal buds durning dormancy to protect the delicate, undeveloped tree parts from winter weather.
bud scale scares
buds that fall of once a year leave a scare to determine the branch's age.
a place on a stem that leaves grow out of
small pores that allow air to enter a stem
a waxy protective layer on a leaf that encourages water retention
are at the bottom of a tree to tend to be larger in surface area and thinner.
found at the top of the trees and are thicker and smaller
deciduous trees has the ability to lose their leaves in preparation for the winter.
produces yellow pigment.
produces orange pigment.
produces purple, red, blue pigments.
single layer of cells that forms at the base of the petiole to server the leaf from the branch.
any remainings' on a tree.
a dense collection of trees.
thick top layer of interlaced leaves.
is the northern and southern limit at which trees grow.
bottomland hardwood forest
along the mississippi river.
care and culture of forest trees.
a person who study forestry.
any system or object that absorbs carbon dioxide from the environment.
object the produces carbon dioxide.
groups of tall plants or trees.
removing all the trees from areas that are 100 acres or less.
trees the produce seeds that wind scattered and seedlings that need abundant sunlight for proper growth.
trees from a designated area is harvested at once.
selective cutting method
used for trees that grow well in partial shade.
biggest tree by volume.
often used by native americans to make canoes.
headed the bureau of forestry.
sustained yield management
intensive forest management system that, when applied, causes the forest to grow more high-quality trees that mature faster then they normally do.
old growth forests
manage its crop trees but also to ensure the protection.
grow faster,straighter,and have fewer branches.
most destructive forest fires.
set fire to a forest under controlled conditions.