Features of woody stems produced by plants growing in areas with seasonal (as opposed to year-long) growth. The growth ring marks the position of the vascular cambium at the cessation of the previous year's growth. PICTURE
Increments of growth which appear as figures in the floor. Seen in a cross section of a log as rings around the center of the log. When only one growth ring is formed during a year, it is called an annual growth ring. Viewing the end of a solid board, they appear in bands or layers.
Usually represent the yearly or seasonal cycle of growth. Each ring is composed of two parts: the inner part, called earlywood, or springwood, is lighter and softer and is produced in the spring; the outer part, called latewood, or summerwood, is added later in the growing season.