Suflower is not a flower. Justify the statement.

Explanation

1. Sunflower is an inflorescence called capitulum or racemose head.
2. It has a flat disc-shaped peduncle called receptacle.
3. It bears an involucre of bracts on the periphery and two types of small sessile flowers called florets.
4. The florets are arranged centripetally with youngest towards the periphery.
5. There are ray florets which are sterile female flowers of ligulate type on the outside.
6. The rest of the flower structure contains disc florets which are fertile bisexual flowers of tubular type.