dog rose
noun
1.
an Old World wild rose,
Rosa canina,
having pink or white flowers.
Origin
1590-1600
British Dictionary definitions for
dog rose
dog rose
noun
1.
a prickly wild rose,
Rosa canina,
that is native to Europe and has pink or white delicate scentless flowers
Word Origin
translation of the Latin name, from Greek; from the belief that its root was effective against the bite of a mad dog