Nevada: A new genus for Smelowskia holmgrenii (Brassicaceae). Brittonia 56: 238–244. 2004.—Nevada holmgrenii was originally described by Rollins as a Smelowskia, but based on phenetic similarities it appears to be more closely related to the arctic/alpine genera Braya and Eutrema. It is, however, sufficiently distinct from these genera to be placed in a monotypic genus, Nevada.