- Flore des serres et des jardins de l'Europe, vol. 4
- Van Houtte, Louis (under the direction of)
- Ghent: Louis van Houtte, 1848
The purple coneflower (Echinacea purpurea, syn. Echinacea intermedia) is a plant in the family Asteraceae native to North America. It is cultivated for its ornamental qualities.