Asclepiadoideae

The Asclepiadaceae, commonly known as the milkweed family, is a former plant family now treated as a subfamily (subfamily Asclepiadoideae) in the Apocynaceae.
They form a group of perennial herbs, twining shrubs, lianas or rarely trees but notably also contain a significant number of leafless stem succulents, all belonging to the order Gentianales. The name comes from the type genus "Asclepias" (milkweeds).