Flower identification please

[Glenviewbee]

My sister lives in Cambridge and is normally pretty good at flower identification - however this one has her stumped. I've tried to identify it using internet based plant id websites but have not succeeded.
Can anyone put us out of our misery please?

 

[deanrpwaacs]

Phacelia campanularia . California bluebell ?

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[Glenviewbee]

Looks like it Thanks