Orange tree (Citrus × sinensis) is a broad evergreen fruit tree distinguished by its glossy foliage, fragrant blossoms, and rounded canopy structure. The leaves are dark green, leathery, and arranged alternately along branching stems that create a dense and highly textured crown. White citrus flowers emerge seasonally across the canopy and are followed by spherical orange fruits rich in aromatic oils.

Originating through ancient hybridization within the citrus lineage, Citrus × sinensis became widely cultivated throughout subtropical and tropical regions worldwide. The species is biologically notable for evergreen growth, extended fruit development cycles, and highly fragrant reproductive structures that attract pollinators. In mature form, the tree emphasizes dense canopy layering, year-round foliage persistence, and vibrant fruiting display, making it one of the most recognizable cultivated evergreen fruit trees globally.