![]() In many plants scales do not form over the bud, and the bud is then called a naked bud. Continued growth of the branch causes these scars to be obliterated after a few years so that the total age of older branches cannot be determined by this means. By means of these scars one can determine the age of any young branch, since each year's growth ends in the formation of a bud, the formation of which produces an additional group of bud scale scars. When the bud develops, the scales may enlarge somewhat but usually just drop off, leaving a series of horizontally-elongated scars on the surface of the growing stem. Many bud scales are covered by a gummy substance which serves as added protection. The buds of many woody plants, especially in temperate or cold climates, are protected by a covering of modified leaves called scales which tightly enclose the more delicate parts of the bud. Inflorescence bud scales in Halesia carolina ![]()
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