leaf scar


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Leaf scarclick for a larger image
Fig. 206 Leaf scar . Position on stem.

leaf scar

a scar left on a stem after leaf ABSCISSION. Visible on the scar is a number of smaller scars, each one marking the position at which a VASCULAR BUNDLE entered the petiole of the LEAF.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Bothrodendron punctatum has oval leaf scars up to 2 mm long with ligule pits contiguous with the top of the leaf scar.
* Leaf scar. The leaf scar is left when the leaf drops.
At that time, one must rely on minute details of buds or leaf scars, minor bark characteristics, and other clues.
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
In winter, examine a twig for leaf scars - where the leaf has detached from the branch - and you will see perfectly formed horseshoe-shaped scars, complete with nail markings!
It has gray to brown trunk and also have circular ring like leaf scars. Its trunk is very similar to king palm.
The book is divided up into five sections: leaves, flowers and cones, fruit and seeds, buds and leaf scars, and bark and twigs.
After 4 days, I removed the weevils with a visual search and counted leaf scars. I quantified herbivore preference as weevils per plant and scar number per plant.