What is spring wood and what is its other name?

Spring wood, also called early wood, is the wood formed during the beginning of the growing season, typically in spring. This wood is characterized by larger xylem vessels with wider cavities and thinner walls, produced when conditions favor rapid growth and abundant water is available. The larger vessels allow for efficient water transport to support the burst of growth in spring. Spring wood appears lighter in color compared to summer wood (late wood) and is less dense. The alternation of spring wood and summer wood creates the visible annual rings in tree trunks, with each ring representing one year's growth. The term "early wood" is often preferred in tropical regions where seasonal growth patterns don't necessarily correspond to spring.