NEW DATA ON THE ALIEN PLANTS OF THE MORDOVIA STATE NATURE RESERVE
The paper presents data about floristic records of the alien and cultivated vascular plants in the Mordovia State Nature Reserve (Republic of Mordovia, Russia). In 2017-2019, in the Mordovia State Nature Reserve, we found one species, new for the flora of the Republic of Mordovia (Sedum spurium); six weed and running wild alien species were recorded outside of introduction sites (Pinus strobus, Thuja occidentalis, Avena fatua, Prunus virginiana, Parthenocissus quinquefolia, Mentha longifolia); new locations for three alien species (Consolida regalis, Papaver somniferum, Oenothera rubricaulis). In addition, we indicated two cultivated species and hybrids, which could be found in wild in the Mordovia State Nature Reserve in future (Apium graveolens, Euphorbia marginata, Mentha × dumetorum). Noteworthy, among the indicated taxa, Parthenocissus quinquefolia is considered as invasive species in Central Russia. Thus, by late 2019, checklist of the flora of the Mordovia State Nature Reserve include 123 alien species and 45 species and hybrids of the vascular plants, which are known only in culture.