Allenstein, P, Bye, R, Ceska, J, Clark, J, Cruse-Sanders, J, Donnelly, G, Dunn, C, Frances, A, Galbraith, D, Golubov, J, Gurman, G, Havens, K, Hird Meyer, A, Justice, D, Linares, E, Hernandez, MM, Aguilar, BM, Maunder, M, Mims, R, Mueller, G, Neale, JR, Nicholson, M, Novy, A, Pell, S, Pipoly, JJ, Ragone, D, Raven, P, Riggs, E, Sackman, K, Martinez, ES, Sharrock, S, Sclar, C, Smith, P, Westwood, M, Wolf, R & Jackson, PW 2016,
North American Botanic Garden Strategy for Plant Conservation 2016-2020.