Yellow rattle or cockscomb, ''Rhinanthus minor'', is a flowering plant in the genus ''Rhinanthus'' in the family Orobanchaceae, native to Europe and Western Asia.
It is a hemi-parasitic herbaceous annual plant that gains some of its nutrients from the roots of neighbouring plants. It grows to 25–50 cm tall, with opposite, simple leaves, with a serrated margin. The flowers are yellow, produced on a terminal raceme. The fruit is a dry capsule, which contain loose, rattling seeds when.. more