Oak & Bamboo

Quercus

What genus does the oak tree belong to?

Northern hemisphere, Europe, Asia, and North America

What is the origin place of oak trees?

White oak

used for barrels

Hardwood

What kind of tree is white oak?

simple, dry fruit of the oak tree; a nut

Acorn

Wood

unused, inactive xylem cells that accumulate in the center of a woody stem; the hard fibrous material that forms the substance of the trunk or branches of a tree or shrub

such material when cut and used as timber or fuel

vascular bundles

composed of both xylem & phloem

Vascular cambium

located in the middle of the vascular bundle; occur in woody stems

1) bark 2. phloem 3. vascular cambium 4. active xylem: sapwood (stem) 5. Heartwood (center, dry inactive xylem)

From the outside rings to the center of wood:

Girdling

cutting around a tree which damages the phloem and xylem and eventually kills the tree

Annual rings

xylem formed by the vascular cambium during one growing season; one ring = one year

Maple tree

-Genus Acer

-Native to Asia, Europe, and North America

-Has a distinct leaf & seed for wind dispersal

-Used for bowling pins and cuesticks

Hardwood

What kind of tree is the maple tree?

(black) Walnut tree

-Genus Juglans

-from several continents, but many species from North America

-Used for furniture

Hardwood

What kind of tree is a walnut tree?

(white) Ash tree

-Genus Fraxinus

-Several continents: deciduous tree in North America

-Produces dense, flexible wood

-used for baseball bats

Hardwood

What kind of tree is the ash tree?

(white) Pine tree

-Genus Pinus

-Gymnosperm

-Adopted to cold climates

-Used for construction

Softwood

What kind of tree is the pine tree?

Hemlock tree

-Genus Tsuga

-Native of Asia & North America

-Gymnosperm

-Used for books & paper

Softwood

What kind of tree is hemlock?

Wood pulp

a slurry of water & separated wood fiber cells

Paper

made from wood pulp; thick sheet made by spreading pulp on a screen, draining it and drying it

recyled paper, hemp, kenaf, agrifiber, and bamboo

alternatives to wood pulp

agrifiber

straw, bagasse, & other agricultural waste material

Bamboo

a tree-like member of the Poaceae grass family whose subfamily is bambusoideae

it’s native to East Asia, but some species are found in other continents