Growth rings. Cross-section through the trunk of a wych elm tree (Ulmus glabra) showing the annular growth rings. A years growth consists of a porous

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Growth rings. Cross-section through the trunk of a wych elm tree (Ulmus glabra) showing the annular growth rings. A years growth consists of a porous band (dark brown), which is the slow winter growth, and a more dense band (light brown), which is the faster summer growth.

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Size: 5113px × 3449px
Photo credit: © GEORGE BERNARD/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: annular, biological, biology, botanical, botany, close-, cross, cross-section, dendrology, detail, elm, flora, glabra, growth, nature, plant, ring, rings, section, sectioned, summer, tree, ulmus, winter, wych