(des sources variées, pas inclus dans Coste) :
Proche de Rosa canina. Differences: Feuilles entierment glabre.
Écologie : Haies, lisières / mont.-subalp.
Répartition hors de France :
(modified from translated Coste):
NOTE: the French text is more complete and up-to-date
Shrub from 1 to 3 m, usually greenish; branches robust, erect; strong, curved or arched, thorns dilated at base
Ecology UK: Widespread throughout the UK. Woods, hedges, scrub.
Distribution outside France: Europe, Western Asia, Northern Africa.
Fleurs : Pédicelles glabres, courts, enveloppés par les bractées. Fleurs rose clair à rose vif. [hypanthium souvent glabre] Styles courts, [poilue] blancs-laineux. Sépales étalés ou dressés après la floraison, persistant jusqu'à maturité. Type floral D; discque stylaire >1.2 mm diam.
Floraison France : juin
Flowers: pink or white, more or less large, solitary or in corymbs; pedicel smooth, more rarely hispid-glandulous with odourless glands; sepals with appendices, reflected after flowering and promptly caducous; stigma T-shaped, hairy or glabrous;
Flowering UK: (none) - France: May-July.
Please
consider 
