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Unformatted text preview: o Polycarpic perennials may reproduce year after year, once reaching sexual maturity. o Monocarpic perennials grow vegetatively for a number of seasons, then reproduce once and die. Perennials can be herbaceous or woody. Some woody perennials, such as the Bristle cone pine, live for thousands of years based on dendrochronology. Using radioactive carbon dating, a Baobob tree in Africa has been determined to be about 6000 years old. Roots of a clonal Norway spruce in Sweden are around 9500 years old and clonal Huon pines in Tasmania are estimated to be around 10,000 years old. It's nearly impossible to date clonal species such as aspen clones that have "short-lived" individual trunks, but one estimate for a clone in Utah indicated the clone might be 800,000 or more years old....
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This note was uploaded on 01/08/2012 for the course BIO 213 taught by Professor Makina during the Fall '09 term at SUNY Stony Brook.
- Fall '09