Nemesia caerulea (USA) ?

Nemesia caerulea Hiern, Fl .Cap. 4(2): 191 1904. ?;
 

Nemesia caerulea is a blue- to purple- flowered herbaceous perennial member of the Plantaginaceae family.[1] The plant is native to the Cape Floristic Province of southwestern South Africa, where it grows at low elevations on fully exposed north-facing and northwest-facing slopes in association with other native grasses and herbs.[2] Its chromosome number is 2n=18.[3]

It produces many small flowers in shades of pink, blue and white (the Latin caerulea means "dark blue").[4] The flowers are two-lipped, the upper lip with four lobes and the lower lip with two lobes. In cultivation the two lips are often different colours.[5]

In temperate regions it is usually grown as an annual.

(From Wikipedia  on 29.8.13)

 
 https://groups.google.com/group/indiantreepix/attach/a2843d82b5026af8/Nemesia%20caerulea_Chicago%20Bot%20Gdn3.jpg?part=0.2&authuser=0&view=1
https://08511630493324166816.googlegroups.com/attach/858a3ac2a22e008/Nemesia%20caerulea_Chicago%20Bot%20Gdn1.jpg?part=0.1&view=1&vt=ANaJVrHFtWRctq9j_Mupvo08ZQo90tLlQJTDwfnIsW47IQOuDeXI7UN5ATup65T8S47pPeR6-7Ee1EfpIY3uzvAebEv-4MX90ngSfMaeEfL7thwBy8NgIso

https://08511630493324166816.googlegroups.com/attach/a2843d82b5026af8/Nemesia%20caerulea_Chicago%20Bot%20Gdn2.jpg?part=0.3&view=1&vt=ANaJVrE19b3nPH9KaPUcih9BCzZFCcB4BiQzcsA4p9wW542vwinQZYxtN4_TJBQkOSleC2FvsmwPPWLKZsLGAmEazMtK7fkt4-OnIYQzf_Uq6y3Qn-b95tc

 
Attached are pictures of what I found on googling to be Nemesia caerulea captured in Chicago, USA in May 2013.
Could you please confirm the ID?
 
 
 
 
 
 

References:

The Plant List (unresolved) Missouri botanical garden  Wikipedia  

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