Alyxia stellata, known as maile in Hawaiian, is a species of flowering plant in the dogbane family, Apocynaceae, that is native to Hawaii. It grows as either a twining liana, scandent shrub, or small erect shrub, and is one of the few vines that are endemic to the islands. The leaves are usually ternate, sometimes opposite, and can show both types on the same stem. Flowers are quite inconspicuous and have a sweet and light fragrance of honey. The bark is most fragrant and exudes a slightly sticky, milky sap when punctured, characteristic of the family Apocynaceae. The entire plant contains coumarin, a sweet-smelling compound that is also present in vanilla grass, woodruff and mullein. Fruit are oval and dark purple when ripe. Maile is a morphologically variable plant and the Hawaiian names reflect this.

Apocynaceae is a family of flowering plants that includes trees, shrubs, herbs, stem succulents, and vines, commonly known as the dogbane family, because some taxa were used as dog poison. Members of the family are native to the European, Asian, African, Australian, and American tropics or subtropics, with some temperate members. The former family Asclepiadaceae is considered a subfamily of Apocynaceae and contains 348 genera. A list of Apocynaceae genera may be found here.