Cape sundew (Drosera capensis) leaves. The leaves of this carnivorous plant are covered with hairs (trichomes) that secrete a sticky sap that attracts insects. This sap also gives them their dewy appearance. Once an insect is stuck to a leaf, the leaf curls around it and secretes digestive enzymes that liquify the insect. The cape sundew is native to the Cape area of South Africa. Photographed at Kew Gardens, UK.