Spotted Knapweed – 7/22/15
Observer: Paul Lauenstein
Observation Date: 7/22/15
Observation Time: 4:40 p.m.
Observation Location: Gavins Pond area
Common Name: Spotted Knapweed
Scientific Name: Centaurea maculosa
Comments: Spotted knapweed is poisonous to other plants, creating barren areas where only knapweed grows. It is a threat to pastures and dry ecosystems including prairies and dunes. Can be a skin irritant.
More Information: Michigan Invasive Species