Cuscuta campestris, Yuncker

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 75

2. C. campestris Yuncker , Mem. Torrey Bot. Club 18: 138 (1932)

( C. arvensis auct., non Beyrich ex Engelm.; inch C. basarabica Buia ).

Stems moderately stout, yellowish. Flowers 2-3 mm, 5-merous; pedicels short; glomerules 10-12 mm in diameter, compact, globose. Calyx campanulate, about as long as corolla-tube; lobes ovate or orbicular, obtuse, slightly overlapping. Corolla-lobes acute, triangular, patent (often with inflexed apex), about as long as the shortly campanulate tube. Stamens exserted. Scales long, densely fimbriate, exserted. Styles slender, about as long as the globose ovary. Capsule 2-3 mm in diameter, depressed-globose, pale, with the persistent corolla at its base. Seeds 1 -1-2 mm. Mainly on cultivated species of Trifolium and Medicago , but also on other herbs. Widely naturalized in S., C. & W. Europe. [Al Au Be Br Bu Cz Ga Ge Gr He Ho Hu It Ju Lu Po Rm Rs (C, W)?Sa.] (North America.)

Introduced to Europe about 1900, and spread mainly with agricultural seed; now a weed in some regions.