Asclepias syriaca L. (Apocynaceae) and its invasiveness in the southern part of the Boreal region of Europe – evidence from Lithuania

Ruderal vegetation of Kyiv City. II. Class Artemisietea vulgaris

“…In particular, during our observation period the number of stands dominated by Asclepias syriaca has apparently increased. The plant is native to North America and within its native range it grows in well-drained sandy, clayey, or rocky calcareous soils along the banks of lakes, ponds, and waterways, in prairies, and at forest margins (Bhowmik, 1994;Hartzler, Buhler, 2000;Gudžinskas et al, 2021). In the study area, it most often occurs in dry habitats, particularly along roads and railways.…”

“…We also found this species accompanied in the stands of unmanaged xeric and mesic grasslands of the city. Its tolerance to a wide range of soil humidity (from dry to moist soils), high potential ability to invade different habitats, as well as factors of climate changes, may facilitate its further spread over larger areas in the future (Gudžinskas et al, 2021). Climate changes also affected the appearance within the city of some plant communities typical for southern regions, e.g., Anisantho-Artemisietum austriacae and Convolvulo-Brometum inermis, which in the previous survey of the vegetation of Ukraine (Dubyna et al, 2019) were reported only for the steppe zone.…”

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“…In particular, during our observation period the number of stands dominated by Ascle pias syriaca has apparently increased. The plant is native to North America and within its native range it grows in welldrained sandy, clayey, or rocky cal careous soils along the banks of lakes, ponds, and waterways, in prairies, and at forest margins (Bhow mik, 1994;Hartzler, Buhler, 2000;Gudžinskas et al, 2021). In the study area, it most often occurs in dry habitats, particularly along roads and railways.…”

“…We also found this species accompanied in the stands of unmanaged xeric and mesic grasslands of the city. Its tolerance to a wide range of soil humidity (from dry to moist soils), high potential ability to invade different habitats, as well as factors of cli mate changes, may facilitate its further spread over larger areas in the future (Gudžinskas et al, 2021). Climate changes also affected the appearance with in the city of some plant communities typical for southern regions, e.g., AnisanthoArtemisietum aus triacae and ConvolvuloBrometum inermis, which in the previous survey of the vegetation of Ukraine (Dubyna et al, 2019) were reported only for the steppe zone.…”

Nowe stanowiska roślin naczyniowych Polski, 3

“…przydroża, nieużytki, tereny kolejowe (Stanković-Kalezić et al, 2008;Wołkowycki et al, 2018). Preferuje otwarte siedliska, chociaż może też przetrwać w zbiorowiskach będących wczesnymi stadiami sukcesyjnymi lasu o mniejszym zwarciu drzew (Gudžinskas et al, 2021). Potencjalne zagrożenie dla różnorodności biologicznej na terenie Polski ze strony tego gatunku wymaga monitorowania jego rozmieszczenia.…”