Expansions of plant species to the flora of Vladimir oblast (Russia) in the last decade. Second report
2015
Seregin, A. P.
The second report reviews naturalization and expansion of ten vascular plant species in Vladimir oblast (Russia) in the last decade. All records of Acer tataricum L., Amelanchier × spicata (Lam.) K. Koch, Bidens frondosa L., Cuscuta campestris Yuncker, Galinsoga quadriradiata Ruiz et Pav., Nuttallanthus canadensis (L.) D.A. Sutton, Poa supina Schrad., Rosa villosa L., Rumex stenophyllus Ledeb., and Zizania palustris L. since the first record until the end of 2013 are summarized. Series of grid maps for each species (dated 2007, 2011, and 2013), frequency of occurrence, ecological preferences, earlier reports from neighboring regions, and probable invasion routes are discussed. The data on further four-year expansion (2010–2013) are presented for ten species characterized in the first report: Epilobium tetragonum L., Hypochoeris radicata L., Ambrosia trifida L., Erigeron × huelsenii Vatke (E. droebachiensis auct.), Aronia mitschurinii A.K. Skvortsov et Maitul., Trifolium fragiferum L., Phragmites altissimus (Benth.) Mabille, Schedonorus arundinaceus (Schreb.) Dumort., Vicia villosa Roth, and Galega orientalis Lam.
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