The new combinations Arabis adpressipilis, Hilliella rupidcola subsp. shuangpaiensis, H. sinuata subsp. qianwuensis, and Neuontobotrys amplexicaulis are proposed. The distinguishing characters of A. adpressipilis from A. pycnocarpa are discussed and evaluated. The new combinations in Hilliella were previously recognized in Yinshania when the genera were united but now recognized in different tribes. The basionym of the long-neglected Hesperis amplexicaulis predates that of Sisymbrium grayanum, and therefore becomes the basis for the new combination in Neuontobotrys. Sisymbrium amplexicaule and S. amplexicaule var. tenuicaule are lectotypified.