Which of the following statements regarding disc florets is incorrect?
They are clustered in the central disc like part of the receptacle
The younger ones are near the center and older ones towards the periphery of the disc
They are usually unisexual
They are usually bisexual and actinomorphic
The correct statement is that disc florets are usually bisexual, meaning they contain both male and female reproductive structures within the same floret. Hence, the correct answer is option 3.