Amphiachyris dracunculoides (broomweed) is a North American species of flowering plants in the daisy family. It is native to the United States, primarily the southern Great Plains from Missouri to eastern New Mexico.Amphiachyris dracunculoides is a tall annual herb occasionally reaching as much as 200 cm (7 feet) in height. Flowers are yellow, with both ray florets and disc florets.