These plants range from 46â120 cm (18â47 in) in height. The flowers are usually yellow with a toothed tip, but may also be yellow-and-red bicolor.[3] They have showy flower heads with involucral bracts in two distinct series of eight each, the outer being commonly connate at the base. The flat fruits are small and dry and look like insects. There are 75â80 species of Coreopsis, all of which are native to North, Central, and South America. The name Coreopsis is derived from the Greek words ÎșÏÏÎčÏ (koris), meaning "bedbug", and áœÏÎčÏ (opsis), meaning "view", referring to the shape of the achene