Apparent first state records of 11 taxa for Wyoming and one taxon for Montana are listed. A range extension is noted for the genus Shoshonea.
Lichvar, Robert W.; Dorn, Robert D.; and Evert, Erwin F.
"New records for the vascular flora of Wyoming and Montana,"
Great Basin Naturalist: Vol. 43
, Article 23.
Available at: http://scholarsarchive.byu.edu/gbn/vol43/iss4/23