annual ring (growth ring) Concentric circles visible in cross-sections of woody stems or trunks. Each year the cambium layer produces a layer of xylem, the vessels of which are large and thin-walled in the spring and smaller and thick-walled in the summer, creating a contrast between the rings. Used to determine the age of trees, the thickness of these rings also reveals environmental conditions during a tree's lifetime.
annual ring See tree ring.
annual ring See TREE-RING.
annual ring See growth ring.
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Growth Ring , growth ring (annual ring) Any of the rings that can be seen in a cross-section of a woody stem (e.g. a tree trunk). It represents the xylem formed in… Ipoh , Ipoh •capo • Gestapo •Aleppo, depot •downtempo, tempo, uptempo •Expo •cheapo, Ipoh, peep-bo, repo •hippo •hypo, typo •oppo, topo, troppo •compo • Lim… Baumgrenze , baumgrenze A line through the last of the stunted trees, marking the limit of a zone of stunted tree growth (such as is often found near the upper li… Dendrochronology , Dendrochronology Trees and other woody plants grow by covering themselves with a new layer of tissue every year. When seen in a horizontal section, s… Tree Ring , tree ring (annual ring, growth ring) A sheath of cells appearing as one of a series of concentric rings in the cross-section of a woody stem. Each ri… Bo Tree , Bo tree (Bodhi tree) In Buddhism, the pipal under which the Buddha (Siddhartha Gautama) found enlightenment (bodhi) at Bodh Gaya, near Varanasi, n In…
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