The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.
- 1818. In: Gen. N. Amer. Pl. [Nuttall] 1: 196.
- Flora Boreali-Americana 1: 167. 1803. (Fl. Bor.-Amer.)
Hilty, J. Editor. 2015. Insect Visitors of Illinois Wildflowers. World Wide Web electronic publication. illinoiswildflowers.info, version (09/2015)
See: Abbreviations for Insect Activities, Abbreviations for Scientific Observers, References for behavioral observations
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!