01322nas a2200205   4500008004100000022001600041245004700057210004700104300000800151490000600159520072900165653001800894653002500912653002500937653002200962653001300984653002000997100002001017856007901037       2010                        eng d  a1989‐864900aJournal Management of Biological Invasions0 aJournal Management of Biological Invasions  a1-50 v13 aMisidentifications are an important but neglected problem in studies on plant invasions. This review shows how taxonomic education of staff and stakeholders is of great importance for correctly assessing threats provoked by alien plant species in field and literature based studies. Four randomly chosen recent examples (Digitaria violascens, Eleocharis pellucida, Juncus dichotomus and Vicia dalmatica) from Europe demonstrate that, as a result of an initial erroneous identification and/or confusion with similar harmless species, potentially noxious environmental weeds have been able to become fully naturalised. They act as “invaders in disguise” and therefore constitute a real problem for conservation management.10aalien species10aDigitaria violascens10aEleocharis pellucida10aJuncus dichotomus10ataxonomy10aVicia dalmatica1 aVerloove, Filip  uhttp://www.managementofbiologicalinvasions.net/index_file/Verloove2010.pdf01502nas a2200133   4500008004100000245006800041210006700109260001200176300000900188490001000197520102400207100002301231856011401254       1981                        eng d00aVegetaties met Juncus canadensis J. Gay ex Laharpe in de Kempen0 aVegetaties met Juncus canadensis J Gay ex Laharpe in de Kempen  c11/1981  a2-110 v19-203 aVegetations with Juncus canadensis J. GAY ex LAHARPE in the Campine district.
This study describes a few sites of Juncus canadensis in the Campine district, a species that was first found in Belgium in 1975. Now there are known about twenty sites, all of them in the Campine district. The stands of Juncus canadensis in Belgium are not typical. The species seems to appear in stands with rather different characters of acidity, moisture and nutritional ecology. The most constant environment of Juncus canadensis is the littoral area of slightly eutrophic, disturbed fens and lakes.
The following types of marsh vegetation with Juncus canadensis may be distinguished:
— vegetations with Littorellion-eleaients such as Eleocharis multicaulis, Scirptis fluitans and Hypericum elodes.
— marsh vegetations with Molinia caerulea, Junais bulbosus, J. effusus, Hydrocotyle vulgaris, Carex rostrata, Drepanocladus fluitans and Sphagnum spp.
— acid bog vegetations: Sphagno-Rhynchosporetum albae in Erica-vegetations.1 aVan Straaten, Dick  uhttps://alienplantsbelgium.myspecies.info/content/vegetaties-met-juncus-canadensis-j-gay-ex-laharpe-de-kempen