The light colored phase of the annual ring, formed by the large cells used for root sap movement in the spring.
The less dense, larger wood cells of an annual growth ring. Also called earlywood to refer to the fact that it is the wood formed early in the growing season. See also summerwood.
The portion of the annual growth ring of a tree that is formed during the early part of the seasons growth. It is usually less dense and weaker mechanically than the summerwood.
The first-formed woody portion of the annual growth ring of a shrub or tree
That part of an annual ring formed early in the growing season, a period of more rapid growth. Walls of wood cells are thin and wood formed is less dense.
Also known as "early wood". The less-dense, larger-celled portion of an annual growth ring formed by a tree during the early part of the growing season. Springwood is usually lighter in color than summerwood.