You are viewing this Species as classified by:

Comprehensive Description

Read full entry


This is perhaps the showiest of the milkweeds (Asclepias spp.) because of the long-lasting and colorful flowers. Because Butterfly Milkweed (Asclepias tuberosa) is the only milkweed in Illinois that has orange flowers, it is easy to identify. This species is also unusual for a milkweed because its leaves are alternate and its foliage lacks a milky latex. Because of the absence of milky latex, it is often referred to as Butterfly Weed, rather than Butterfly Milkweed. The thick and bitter-tasting roots were used for various medicinal purposes in the past, including the treatment of pleurisy. As a result, another common name for this species is Pleurisy Root.


Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© John Hilty

Source: Illinois Wildflowers


EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!