Cuscuta americana grows as a yellowish orange parasitic vine to 7 meters in height covering other vegetation and attached via haustoria to branches and leaves. There are highly reduced scale like leaves. The complete, perfect, actinomorphic, flowers are arranged in tight clusters. The calyx has 5 greenish white, fused, sepals. The corolla has 5 whitish yellow, fused petals. On the interior of the corolla between the stamens are fringed scales. The calyx and the corolla are about the same length. There are 5 stamens subsessile on the corolla. The ovary is superior with 2 locules and multiple ovules. The fruit is a capsule at maturity.