Thelypodiopsis shinnersii (M.C. Johnst.) Rollins Thelypodiopsis shinnersii (M.C. Johnst.) Rollins in Contr. Gray Herb. 206: 13. 1976 sec. Rollins 1993=Sisymbrium shinnersii M.C. Johnst. in S. W. Naturalist 2(2-3): 129. 1957 syn. sec. Warwick & al. 2006