Late Summer Blooms

From our walk there is this. 

Prairie Dock - Silphium terebinthinaceum.  Also commonly called rosin weed.  It is a sunflower-like plant it can grow to a height of 9 feet. With a 14 foot tap root it is exceedingly drought-resistant and can flourish for decades. 

The plant gets the name rosin weed because it produces a sweet-smelling resin when injured. While Prairie Rosin weed is the correct name for this specific plant, there are other plants called rosin weed that are different species within the same genus, Silphium. 

It is just now beginning to come on-line and pollinators are attracted to it as it blooms for more than a month. Birds love the seeds.

When we planted our prairie 20 years ago this species was not in the seed mix.  Like several other species it has found its way here and established itself on its own.

Bonus!