First report of Fallopia x bohemica in Romania
Fallopia x bohemica (Polygonaceae, EPPO List of Invasive Alien Plants) has been identified in more than 78 localities in Eastern Transylvania, Romania since the 2000s. F. x bohemica is found along the Tisa River, the Bistriţa River and its tributaries, as well as in the Moldavian plain. In these infested sites, F. x bohemica replaces the native vegetal communities over large areas. The species had initially been erroneously identified as Polygonum cuspidatum (= Fallopia japonica). As a consequence, many records relating to F. japonica may correspond to F. x bohemica. In Romania, F. x bohemica was either introduced from Central Europe as an ornamental plant and then escaped from gardens, or spread naturally from west to east along watercourses.
Sources
Sîrbu C, Oprea A, Truţā E ; Voichiţa G (2011) A study on biology and phytosociology of the invasive plant: Grindelia squarrosa (Pursh) Dunal. (Asteraceae) in Romania. In: Bohren C, Bertossa M, Schönenberger N, Rossinelli M, Conedera M. (ed) 3rd International Symposium of Environmental Weeds and Invasive Plants. Abstracts. October 2 to 7 2011. Monte Verità, Ascona, Switzerland.
Available from Internet
http://www.wsl.ch/epub/ewrs/sessions/detail_EN?id=202;session=3;type=posters Birmensdorf, Swiss Federal Institute for Forest, Snow and Landscape Research WSL.
Sîrbu C ; Oprea A (2008) Two alien species in the spreading process in Romania: Reynoutria x bohemica chrtek ; Chrtková. Cercetări Agronomice în Moldova. Vol. XLI, No. 2 (134), 41-50.