Solidago is a common and recognizable component of our flora in the Eastern Townships. About 100 species are known of which about three-quarters are found in North America. Goldenrods are well represented in Quebec – 27 species are native and a couple with multiple varieties. I believe this is Solidago canadensis (Canada goldenrod). Quebec and Canada are usually on the receiving end of many new species, some of which have become invasive. Well, what goes one way can go the other. An early export from North America to Europe because of its horticultural and medicinal uses, it has since spread to other parts of the World . It is considered invasive in some parts of Europe and China. It is common here and considered a weed by some, despite its native status.