Passerina is a genus of flowering plants in the family Thymelaeaceae. It includes several species, primarily found in tropical and subtropical regions. These plants are known for their small, often colorful flowers and can vary in size from shrubs to small trees. The leaves of Passerina species are typically leathery and can be arranged alternately or oppositely on the stems. Some species are used in traditional medicine, while others are valued for their ornamental qualities in gardens and landscapes.