Leaves With Pointy Edges Explained

Posted on February 21, 2006 

Leaves With Pointy Edges Explained

Leaves either have smooth or pointy, “toothed” edges, and now researchers think they know why — the teeth take some of the bite out of cold weather for trees, shrubs and other plants.

Since the study, published in the current International Journal of Plant Sciences, links leaf teeth to climate, the finding suggests analysis of leaves from ancient and existing plant species could reveal past and present climactic patterns.

These are critical for determining periods of global warming and other profound temperature changes.

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