@Martine Lapointe: Hi, Martine.
Thank you for your visit.
I do not so know a lot, but think that it is a flower of a scientific name of "Phyllodoce caerulea".
Please visit this site. http://linnaeus.nrm.se/flora/di/erica/phyll/phylcae.html
Perhaps it is a kind of heath family same as Calluna.