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