Salywon, A. M., J. P. Rebman, and D. A. Dierig. “Documented Chromosome Number Determinations in Some Physaria Species (Brassicaceae)”. Journal of the Botanical Research Institute of Texas, vol. 16, no. 2, Nov. 2022, pp. 499-04, doi:10.17348/jbrit.v16.i2.1262.