Goat's-beard

This is a highly invasive plant that occurs in all our natural areas in the city. It takes over and prevents any native wildflowers from growing. It does have an attractive flower and a huge seedhead similar but larger to that of a Dandelion. Yesterday afternoon, I went along on a walk at the Erlton/Roxborough Natural Area with a Naturalist and a couple of others, accompanied by a reporter/journalist from the Calgary Herald newspaper. He is writing an article on how invasive plants are destroying our natural areas and that more needs to be done immediately to try and save our native plants/birds/etc. from destruction and eventual extinction. He asked me to send him a photo of a native plant and of an invasive one in case he uses them in his article. This is the invasive plant photo I sent him. The native plant was a Wild Bergamot.