While it it invasive, it is also a good source of pollen for pollinators.
It grows mostly in town next to water, so is not too bad.
Our 6th and 7th grade class has been trying to answer the question of whether we should preserve the Palouse Prairie that has 99.9% disappeared. One of our case studies involved native and invasive plant species and their current role in the Prairie ecosystem.
Walter Fertig from WSU Herbarium