A most floriferous rose (almost unbelievable, freakish)
in in Los Angeles. Huge, petal packed
blooms, big clusters. I bought it despite the weak scent which almost never happens amongst my multiple hundreds of rose purchases. See my photos for verification.

Available from - Pépinières Brochet Lanvin
https://www.pepiniere-brochetlanvin.com/rosiers-anciens-et-arbustes/2562-rosa-provins-bleu-rosaceae-rosier-arbuste.html

The quotes in your references from 1860, 1861, and 1862 refer to a Fuchsia of the same name as this rose. Also to be wary of: There was additionally a Geranium variety of this name at this time.

Available from - Regan Nursery
www.regannursery.com