Tree cross section
Cross section of a recently felled poplar tree, about 12 inches in diameter. The central heartwood (which is largely inert), the surrounding sapwood (which transports water and nutrients), and bark are clearly visible. By counting the rings, this tree was about twenty years old.
Tanos
UK(M), 14 yrs
Tanos has 376 pictures. This picture was uploaded on 27 Oct 08.
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