Daisy and aster are blanket names for many similar looking flowers in the expansive Asteraceae family. Asters are practically indistinguishable from daisies for tagging purposes.
Daisies and asters typically have a spiky-looking head made up of tiny disc florets surrounded by a multitude of long petals. Gerber daisies will also have an inner ring of ray florets around the center head.
Common daisy colors include white petals with a yellow or orange center and yellow petals with a dark brown center, but daisies & asters can come in practically any color.
For tagging purposes, limit this tag to flowers that look generally like a Common Daisy, a Black-Eyed Susan, a Gerber Daisy, asters, or any color variation on that basic design.