Asclepias verticillata (Whorled Milkweed, or Horsetail Milkweed) has been used as a medicinal plant by Native American tribes and in Butterfly gardening. This plant is also cited as a poisonous plant to livestock, but is rarely consumed by them because it is so unpalatable. It is about one to three feet tall. It tends to be associated with poorer soil types where competition is more limited.
Its native range includes most of eastern North America and parts of western North America.