Physaria mcvaughiana (Rollins) O'Kane & Al-Shehbaz Physaria mcvaughiana (Rollins) O'Kane & Al-Shehbaz in Novon 12(3): 325. 2002 sec. Al Shehbaz & O'Kane Jr. 2002≡Lesquerella mcvaughiana Rollins in Contr. Gray Herb. 171: 44-46. 1950 syn. sec. Warwick & al. 2009