Neill, A.K. and 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 (Jul. 2021), 309–315. DOI:https://doi.org/10.17348/jbrit.v15.i1.1065.