leaf scar


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leaf scar

n.
The mark left on a twig after a leaf falls.
References in periodicals archive ?
For each genus, information is given on scientific name, common name, family name, Latin meaning of generic name, habit (tree, shrub, or vine), bark features, twig features (including pith type, bud positions, and types), leaf scar arrangement, bundle scar number, presence or absence of stipule scars, fruit type, and other notes.
The species are distinguished on the basis of leaf scar shape and ornamentation on their stem surfaces.
Cut stems 30cm long, just below a leaf scar at the bottom and just above one at the top.
The basic parts of the stem are the terminal bud, bud scale, terminal bud-scale scar, axillary bud or lateral bud, node, internode, leaf scar, and lenticel.
The leaf scar protrudes under the bud, which is shield shaped, and the outer bud scales are brownish.
The tree eventually severs the tissues that support the leaf and it seals the cut so when the leaf is blown off by the wind, or falls from its own weight, a leaf scar is left.
Simply remove a leaf about 12in from the top of the plant and make an upward slanting cut behind the leaf scar, 1/4in deep and 2in long.
The other, less obvious link to horses is the leaf scar that looks like a horse's shoe - have a close look the next time you see a Horse Chestnut.
Trim off the leaves from the bottom two thirds and cut the base off cleanly just below the last leaf scar with a clean, sharp knife.
Butternut canker produces spores that enter healthy trees through a leaf scar or bark injury.
Caption: Platt's close-up images show the winter buds and the differently shaped leaf scars on a white ash twig and a green ash twig