Cuscuta gronovii var. latiflora Engelm., Trans. Acad. Sci. St. Louis 1:508. 1859. From Lectotype at MO: U.S.A. Missouri. Margin of lakes and swamps, in the "American Bottom" opposite Saint Louis, on Saururus, Sep 1841, Geyer s.n. = Cuscuta saururi Engelm., Amer. J. Sci. Arts 43:339. 1842. Cuscuta gronovii Willd. ex Roem. & Schult. var. saururi (Engelm.) MacMill., Metasp. Minnesota Valley 430. 1892. Lectotype (Yuncker 1932): U.S.A. Missouri. Margin of lakes and swamps, in the "American Bottom" opposite Saint Louis, on Saururus, Sep 1841, Geyer s.n. (MO). Engelmann also cited "Alabama, Dr. A. Prout; Texas, on Boehmeria, Polygonum, &c., F. Lindheimer.†Want to know more about its taxonomy? evolution? biology?
