Any of about 100 species of annual and perennial flowering Drosera , 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 {{link=Venus's-flytrap">Venus's-flytrap . See also pitcher plant .