The ecological adaptation of Galinsoga quadriradiata in Qinling Mountain was investigated by using coinertia analysis based on field survey. Results show that this exotic invasive plant has a high level of ecological suitability. It can survive and develop in different conditions of illumination, soil moisture and soil organic. It can spread rapidly, which results in potential threat to crops, forestry, indigenous vegetation and biodiversity conservation. Its biological characters such as fast growing, long flowering season, producing more capitula, large seed output and vegetative reproduction further demonstrate that its ecological adaptation feature and reproductive traits make it more invasiveness. The results could be used to facilitate farther research and allow targeting control action against this plant.

exotic invasive plant; Galinsoga quadriradiata; Coinertia analysis