Butterfly Weed; Asclepius incarnataAsclepias incarnata is a herbaceous perennial plant species native to North America. It grows in damp to wet soils and also is cultivated as a garden plant for its flowers, which attract butterflies and other pollinators with nectar.
Omaha Indians ate the raw root to treat bronchitis and taught the pioneers to do the same. It is an expectorant; it promotes coughing that raises phlegm. It also contains cardiac glycosides and an estrogen-like substance. It is a component of Lydia E. Pinkham’s Vegetable Compound (1875 to 1960) advertised for use in “womb trouble, sick headache, and nervous breakdowns”.