Figure 2

Change in biomass of Chromolaena odorata and co-grown plant species from its native range in Mexico and invasive range in China. *(P < 0.05) indicates there are significant differences between high and low densities for each category, different letters indicate significant differences among categories (P < 0.05). T. t, C. l, E. l, A. i, B. b and A. m. is the abbreviations of Tithonia tubiformis, Chrysanthemum Leucanthemum, Eupatorium ligustrinum, Abutilon indicum, Bidens biternata, Artemisia Myrianth respectively.