Hm! I have no idea. I guess there's only one way to find out.
I've never seen rose seedlings pop up here before, but there are many new birds around in the past season, and I have more roses than last year... Some of the cuttings I got did come from multiflora varieties, though...
I didn't try digging around it, so I'm not sure if it's attached to a buried cutting or not. I'll check tomorrow and let you know.
