The Rhizophoraceae are a family of tropical or subtropical flowering plants. Among the better-known members are mangrove trees of the genus Rhizophora. Around 147 species are distributed in 15 genera, most native to the Old World. These are woody plants with opposite or whorled leaves (but not decussate), with insect-pollinated flowers having a nectary disc and typically five petals. This family is now placed in the order Malpighiales, though under the Cronquist system, they formed an order in themselves (Rhizophorales).