How many of the following characters are observed in Sunflower? 
I) Head inflorescence
II) Modified calyx – Pappus
III) Epigynous flower
IV) Epiphyllous stamens
V) Parietal placentation

I) Head inflorescence /Capitulum is a characteristic feature of the Asteraceae family.
II) Modified calyx – Pappus is helpful in seed dispersal.
III) Epigynous flower - Gynoecium is inferior.

Basal placentation and Epipetalous conditions are seen in sunflowers.