leaf scar

noun Botany.
the mark left on a stem or twig after a leaf falls.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Science Dictionary
leaf scar  
The mark left on a stem after a leaf falls. Leaf scars can be used to identify tree species in winter or from specimens of their twigs.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
The rachis leaves behind a huge leaf scar when it detaches from the stout stem in autumn or winter.
When the stem dies back in the fall it leaves behind a leaf scar.
The buds are usually above the leaf scar and point upward toward the end or tip of the branch.
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