These plants range from 46–120 centimetres (18–47 inches) in height. The flowers are usually yellow with a toothed tip, but can also be yellow-and-red bicolor or pink. They have showy flower heads with involucral … See more

Coreopsis is a variable genus closely related to Bidens. In fact, neither Coreopsis nor Bidens, as defined in the 20th century, is strictly monophyletic. Coreopsis is best described as paraphyletic. Previously (1936), Cor… See more

North American Coreopsis can be found in two habitats in the wild, growing along roadsides and open fields throughout the Eastern United States and Canada. In this environment the plant will self-sow. See more

Coreopsis species are a source of nectar and pollen for insects. The species is known to provide food to caterpillars of some Lepidoptera species, including Coleophora acamtopappi. See more