Bloomed earlier in season and already gone to seed. Now because of all the rain younger plants are blooming.
The milkweed also had 4 Queen butterfly caterpillars.
Apocynaceae is a family of flowering plants that includes trees, shrubs, herbs, stem succulents, and vines, commonly called the dogbane family. Members of the family are native to European, Asian, African, Australian and American tropics or subtropics, with some temperate members.