A slender stalk of small-leafed rose came up under my strong yellow climber last year. I didn't get around to pulling it out. This year it's bloomed, and I'm charmed. Could I be lucky enough to have received a little bird gift? I'd be happy if this would join the yellow one in clambering up my magnolia. If this is an expression of original root stock breaking through wouldn't we see a much more vigorous shoot?
A seedling would not come out of the ground with a shoot of that diameter all the way to the base. From the appearance of its leaves and flowers likely this is the 'Canina' rootstock, so designated because it is probably derived from Rosa canina but not a pure form of it. Or at least a cloned, horticultural selection of that species.
