The spiny leafed biennial - a plant that completes its life cycle in two years - is a tall weed with fuzzy purple and pink colored flowers on top. The noxious weed can grow up to six-and-a-half ...

Another common name is billy goat weed, which suggest ... which are 18-20 inches tall and produce good cut flowers that dry well. Some species of ageratum can be pink and white as well as blue.

There are certain non-native plants (aka “escaped exotics”/weeds ... tall with a foot-wide diameter, and the small five-petal flowers that grow in clusters atop thin stems look like small pink ...