Cuscuta arvensis Beyr. ex Engelm. var. pubescens Engelm., Trans. Acad. Sci. St. Louis 1:495. 1859 = Cuscuta glabrior Yuncker, Mem. Torrey Bot. Club 18: 140. 1932 Synonyms: = Cuscuta arvensis Beyr. ex Engelm. var. pubescens Engelm., Trans. Acad. Sci. St. Louis 1:495. 1859. Cuscuta pentagona Engelm. var. pubescens (Engelm.) Yuncker, Illinois Biol. Monogr. 6:142. 1921. Cuscuta glabrior var. pubescens (Engelm.) Yuncker, Mem. Torrey Bot. Club 18:141. 1932. Lectotype (Yuncker 1921): "Texas (... Lindheimer in 1847)" (MO). Engelmann's protologue cited "Western Texas, Lindheimer! Wright! 135 (574)."
