Two flowers

Sometimes you do not know what kind of flower it is, it just is there.

A light purple lilac colored flower

Some type of a sunflower?

 They were growing in a field in way northern Vermont.

Update:  The first may be the "Common Soapwort" (Saponaria officinalis).  The second (yellow one) may be an "Ox Eye" (Heliopsis helianthoides).