Cuscuta tinctoria Mart. ex Engelm., Trans. Acad. St. Louis 1: 480. 1859. Voucher: Mexico. Mpio. Magdalena de Kino: Toll station on MEX 15 bypass at Magdalena, ca. 30°37'N, 110° 57'30"W, 800 m, 29 Dec 1994, Van Devender 94-1008 et al. (ARIZ, MEXU, USON, WLU).