INVASIVE weed plants were mistakenly labelled by a nursery supplier before being distributed in Emerald, Mackay and Bilolea last year.
The Department of Primary Industries is attempting to trace the origins of 19 invasive weed plants in central Queensland which could cause severe damage to the state's grasslands.
Authorities believe the mexican feather grass plants were mistakenly labelled by an interstate nursery supplier before being distributed in Queensland last year.
The ABC reports that 67 plants are still missing in Queensland, including 16 sold in Emerald, 11 in Mackay, three in Biloela and one in Longreach.
The DPI said if the plants are still alive, they have had a chance to flower and produce seeds, which means the invasive plant could have spread.
Update your news preferences and get the latest news delivered to your inbox.