Wildflowers: Dichelostemma or allium?

These flowers from different places but look quite the same
1. Soda lake, Carrizo Plain, I think they are Allium

2.Pinnacles National Park. Dichelostemma, Gilia?

3. another one from Pinnacles National Park.

4.Hetch Hetchy Valley

 

None of these look like Allium to me. All in the Dichelostemma / Brodiaea / Triteleia grouping, I think.

 

really? ok, I don't mind Dichelostemma for all of them
Thank you

 

Well, on the other hand, nothing in the Carrizo Plains list: Carrizo Plain Preserve -- Calflora Illustrated Plant List looks closer than Allium howellii for the first.

 

Thank you