Any of various leafless,annual parasitic herbs of the genus Cuscuta that lack chlorophyll and have slender,twining,yellow or reddish stems and small whitish flowers.

• 菟丝子，菟丝子属植物一年生无叶寄生草本植物菟丝子属，缺少叶绿素，有细长蜷曲黄色或浅红色茎，开白色小花。