- Venus fly-traps have two leaf parts: a leaf base and a leaf blade. A Venus fly-trap grows out of the ground with its broad and flat leaf base, which carries out photosynthesis.
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The second leaf part of a Venus fly-trap is its trapping mechanism, also referred to as the trap, leaf-blade or lamina.
Ends of leaves are composed of two lobes hinged together that can open and close in order to trap a small insect. - Venus fly-traps usually have several trigger hairs growing on each trap lobe. When an insect lands on a Venus fly-trap and moves around, trigger hairs know that it is live prey that can be trapped and eaten.
- The egdes of a Venus fly-trap have teeth and look fingerlike. The teeth lace together when an insect is trapped by the plant.
- The two leaf parts of a Venus fly-trap, the leaf blade and leaf base, are joined together by a small stalk called the petiole.












