Describing a leaf margin with sharp, forward-pointing teeth resembling the edge of a saw. The teeth point toward the leaf apex and are typically uniform in size and spacing.
From Latin 'serratus' meaning 'saw-toothed,' from 'serra' meaning 'saw.' The botanical term was established in the 18th century as botanists developed precise vocabulary for describing leaf characteristics.
Serrate leaf margins aren't just for looks - they actually increase the leaf's surface area for better gas exchange and light capture! Plus, the sharp teeth can help deter herbivores from taking big bites out of the leaf.
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