ASSESSING THE INVASIVE POTENTIAL OF SOME NON-NATIVE ORNAMENTAL PLANTS IN ROMANIA

Abstract

Non-native ornamental plants are widely used in urban landscapes, but however some non-native of these species may escape cultivation and become invasive, threatening native biodiversity. This study evaluates the invasive potential of ornamental taxa plant species currently cultivated, escaped, or naturalized in Romania. A set of nineteen diagnostic questions addressing species origin, reproductive traits, ecological adaptability, and documented invasiveness was applied using field observations and literature data. The results indicate that several ornamental species commonly employed in landscaping possess traits associated with high invasive potential, raising concerns for both urban ecosystems and adjacent natural habitats. The study underscores the necessity of incorporating standardized risk assessment tools into urban planning and horticultural practice. Integrating such evaluations into species selection can help prevent future invasions and contribute to sustainable landscape management.