axillary bud

The bud in the angle (axil) of a leaf stalk (petiole) and stem, which, during the growing season, may remain quiescent or give rise to a lateral shoot …

apical dominance,
auxin,
axil,
bud,
cytokinin,
lateral shoot,
quiescent,
shoot

This definition is abridged from A – Z of tree terms: A companion to British arboriculture.
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