deciduous plant
Quick Summary
Deciduous plants are those that shed all of their leaves seasonally, typically in autumn before winter. This shedding is a survival mechanism. Their thin leaves are vulnerable to freezing damage, which would rupture cells and halt photosynthesis. Losing leaves also prevents breakage from winter winds and heavy snow.123
The process of leaf drop, or abscission, is controlled by hormones. As days shorten and temperatures drop, chlorophyll production stops, revealing vibrant fall colors. Vessels carrying water and nutrients to the leaves are sealed off, and a specialized layer of cells detaches the leaf from the plant. This allows the plant to enter dormancy, conserving energy until spring when new leaves emerge.14
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