Some features of morphology of the invasive species Conyza canadensis in the Republic of Abkhazia

The spread of invasive plant species, such as Conyza сanadensis - one of the main environmental threats, as these species become massive weeds of agricultural lands and settlements. The aim of the work was to study the biological characteristics of C. сanadensis in the conditions of the coastal lowland zone of the Republic of Abkhazia. The morphological parameters of the invasive species and their variability were studied. Anthropogenic load influences the morphological parameters of plants - in the western regions of Abkhazia, which are more disturbed by humans, the parameters of plants are lower than in the less disturbed eastern ones. The maximum values of most features were noted in the Gal region, where the ecotopes are undisturbed and close to optimal. All signs have a normal degree of variation (7.0-30.9 %). Further monitoring of the species is required.