Neill, A. K., & Kieschnick, S. R. (2021). Noccaea perfoliata or Microthlaspi perfoliatum (Brassicaceae), new to the flora of Texas, U.S.A. Journal of the Botanical Research Institute of Texas, 15(1), 309-315. https://doi.org/10.17348/jbrit.v15.i1.1065