Bidens bidentoides is an uncommon North American species of flowering plant in the family Asteraceae. It is native to the northeastern and east-central parts of the United States, the coastal plain of the States of Maryland, Delaware, Pennsylvania, and New Jersey plus the region around the Hudson River estuary in New York.[1] Common name is Delmarva beggar-ticks, in reference to the Delmarva Peninsula in Delaware, eastern Maryland, and eastern Virginia.[2]
Bidens bidentoides is an annual herb up to 90 cm (3 feet) tall. It usually produces flower heads one at a time, the heads containing both disc florets and ray florets. The species grows along the banks of streams and estuaries.[3]