Abstract: The clonal reproductive property and community characteristic of invasive species Coreopsis lanceolata in different habitats in Lu Shan, Jiangxi province were studied. The results showed that there was no significant difference in clonal architecture under habitats with different resources. Whether in rock or deserted farmland, the clonal architecture was mainly phalanx which developed from the base of plant, it seemed that there was no correlation between the guerrilla clonal architecture and the level of environment resources. Those guerrilla clonal growth traits made C.lanceolata had collectivize growth strategy, which improved its resistance to barren and drought environment. Thus, naturalized C.lanceolata could dominate various indigenous plants in Lushan, the companion species of C.lanceolata populations were weeds with wider adaptability.

Key words: Coreopsis lanceolata, clonal architecture, ramet population characteristic, invasion