Ricketson, J. M., Ricketson, G. M., & Greenawalt, T. L. (2018). A new species of Potamogeton (Potamogetonaceae) from the unique habitat: Montezuma Well, Arizona, U.S.A. Journal of the Botanical Research Institute of Texas, 12(2), 447–459. https://doi.org/10.17348/jbrit.v12.i2.948