A small tree, sometimes forty-five feet in height, one to two feet or over in diameter. Sometimes reduced to low shrub. Small prickly burr with single small chestnut-colored nut.
Color, Appearance, or Grain of Wood.
Heartwood dark brown, sapwood hardly distinguishable. Coarse-grained, annual layers marked by rows of open ducts.
Structural Qualities of Wood.
Rather heavy, hard, strong. Durable in exposed positions. Liable to check in drying.
Representative Uses of Wood.
Posts, rails, railway ties, etc.
Weight of Seasoned Wood in Pounds per Cubic Foot.
36.
Modulus of Elasticity.