The Jacquemonti birch (Betula jacquemontii), also called the whitebarked Himalayan birch, grows about 12 inches per year. Birch trees generally take 40 years to mature, and this species grows 40 feet tall.
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Aileen Clarkson has been an award-winning editor and reporter for more than 20 years, earning three awards from the Society of Professional Journalists. She has worked for several newspapers, including "The Washington Post" and "The Charlotte Observer." Clarkson earned a Bachelor of Arts in journalism from the University of Florida.