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Any of about 100 species of annual and perennial flowering carnivorous plants in four genera, notably , that make up the family Droseraceae (sundew family). Sundews are found throughout tropical and temperate regions. Their leaves are usually in a basal rosette. Both leaf surfaces are generally covered with sticky, gland-tipped hairs and sensitive tentacles that trap insects. After the trapped prey has been digested by enzymes secreted by the tentacles, the leaf reopens, resetting the trap. The best-known sundew is the Venus's-flytrap. See also pitcher plant.
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