TY - CONF T1 - Ornamentals and invasive plants: if you choose one you get the other as well T2 - Mini symposium on aliens and invasive species Y1 - 2013 A1 - Ivan Hoste JF - Mini symposium on aliens and invasive species PB - National Botanic Garden of Belgium CY - National Botanic Garden of Belgium, Domein van Bouchout, B-1860 Meise, Belgium ER - TY - JOUR T1 - Vegetaties met Juncus canadensis J. Gay ex Laharpe in de Kempen JF - Dumortiera Y1 - 1981 A1 - Dick Van Straaten SP - 2 EP - 11 AB - Vegetations 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. VL - 19-20 ER -