Mystic pink flower with 5 petals

I saw these mystic pink flowers with 5 petals on the grass land of the rest area near Snake River, hwy 84 in Idaho

Another flower from the same place

 

Lygodesmia juncea for the pink one, a member of the Asteraceae: Southwest Colorado Wildflowers, Lygodesmia

The yellow one is also likely an Asteraceae, based on bud shape.

 

Would never think that can be Aster family:(
5 petals...
Thank you. Looks like correct to me.