The state of Washington has declared this a Class A noxious weed, and its purchase, sale, transportation, and planting are illegal there....Read More It's a Eurasian annual or biennial plant, closely related to G. molle and G. robertianum, that's naturalized in the west coast states, and can rapidly devastate forest floors.
The state of Washington has declared this a Class A noxious weed, and its purchase, sale, transportation, and planting are illegal there....Read More
This species is extremely invasive.