Invasive Goat's-beard and Baby's breath

Some of you will be familiar with this rather beautiful, larger than a Dandelion, seedhead. Unfortunately, despite its beauty, it is a highly invasive species and widespread. This one, along with many others, was growing at the Erlton/Roxboro Natural Area in Calgary, on 27 July 2011. The background is of another invasive weed, Baby's Breath. It is quite likely that someone threw an old pot of these tiny, white flowers over the fence from the cemetery next door, and they have spread and keep spreading.

en.wikipedia.org/wiki/Tragopogon_dubius

The Erlton/Roxboro Natural Area is located on the east side of the Elbow River above the southwest community of Roxborough. It was completed in 1996. This is one of the richest areas in Calgary for wildlowers, but unfortunately, many non-native plants and shrubs have taken over much of the area - such as Caragana, Goat's-beard, Baby's Breath and Yellow Clematis.