Spotted Knapweed (Centaurea Maculosa)
Spotted knapweed is a short-lived perennial with pink flowers featuring deeply lobed leaves. It gets its name from the black tips or spots on the sepals. They have achene fruit with a stubby pappus. It’s commonly found along the banks of streams, in sand prairies, old pastures, along the shorelines of ponds, and even along railroads. For that reason, it’s considered a highly invasive plant.
Once it’s established, it continues to grow and spread throughout the available land. Because these plants are “quick drinkers”, these flowers will soak up any available water much faster, starving other plants that may be around.