Raspberry Flower

I have been noticing a lot of wild raspberry plants on my hikes into the mountains recently. This really reminds me of my summers at the cottage when we would pick raspberries that grew on the side of the road that went around the lake. Fond memories but I don't know the environmental implications. Another plant from Canada is an aggressive invasive species here in Japan...  goldenrod... can be found all over Japan now in the autumn, choking out the native plants.