Camassia leichtlinii (USA) ?

Camassia leichtlinii (Baker) S.Watson, Proc. Amer. Acad. Arts 20: 376 1885. (Syn: Camassia esculenta var. leichtlinii Baker; Quamasia leichtlinii (Baker) Coville);

Images by Alka Khare (Id assistance by Viplav Gangar) (Inserted by J.M.Garg) (For more images & complete details, click on the links)
S. British Columbia to C. California (as per WCSP)

Requesting to please ID these flowers captured in Chicago, USA in May 2013.
It is a Camassia sp. [Asparagaceae].
Thank you ... for the lead...
It seems to be Camassia leichtlinii...Kindly validate.
I'm not sure about the species.


The Plant List Ver.1.1  WCSP  GRIN  Kew