Symphyotrichum novae-angliae (Compositae) new alien species in Serbia
2012
Lakušić, D., Faculty of Biology, Belgrade (Serbia). Institute of Botany and Botanical Garden Jevremovac | Jovanović, S., Faculty of Biology, Belgrade (Serbia). Institute of Botany and Botanical Garden Jevremovac
Symphyotrichum novae-angliae (Linnaeus) G. L. Nesom is native to almost every area in North America east of the Rocky Mountains, but excluding the far north of Canada as well as some of the southern States. Due to the attractive flowers, numerous cultivars of have been developed. Furthermore, as a result of its increased usage in the garden, it has been introduced to many area beyond its natural range. In many places Symphyotrichum novae-angliae is escaped from cultivation and naturalized as an alien species. According to Euro+Med PlantBase there is a presumption that the species is introduced in the countries of the Former Yugoslavia. Based on our research in the fi eld and the studies of herbarium material, we have found that S. novae-angliae is present in Serbia, both as cultivated ornamental plants, as well as a naturalized alien species. We have registered this species on 25 localities that are situated in 18 UTM 10 km x 10 km squares. Twenty two of the localities refer to a small group of individuals which are cultivated, while the remaining 3 fi ndings relate to plants that have escaped from cultivation and have naturalized as a alien species. Size estimation of naturalized populations and detailed chorological data (locations of occurrences recorded with GPS, and distribution map presented at UTM grid squares of c. 10 km × 10 km) are presented.
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