Plants that receive insuffient light may be "etiolated." Etiolated plants lack chlorophyll and have relatively long internodes and undeveloped leaves like the pea seedling on the left.
In many tree species, leaves in the top part of the canopy are adapted to higher intesity light than are leaves of the lower branches.
Compared to sun leaves, shade leaves have a greater ratio of area to perimeter (are not so deeply lobed). They are often larger and have a thinner cuticle than sun leaves.
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