@conference {8705,
	title = {An Inventory of aliens escaping from culture in the National Botanic Garden of Belgium},
	booktitle = {Mini symposium on aliens and invasive species},
	year = {2013},
	publisher = {National Botanic Garden of Belgium},
	organization = {National Botanic Garden of Belgium},
	address = {National Botanic Garden of Belgium, Bouchout Castle},
	author = {Anne Ronse}
}
@article {8388,
	title = {Vorkommen und Gesellschaftsanschlu{\ss} von Chenopodium botrys L. und Inula graveolens (L.) Desf. im Ruhrgebiet (Westdeutschland) sowie im regionalen Vergleich},
	journal = {Tuexenia},
	volume = {11},
	year = {1991},
	month = {1991///},
	pages = {49 - 65},
	author = {J. Dettmar}
}
@article {8391,
	title = {New records in the alien fl ora of Romania ( Artemisia argyi, A. lavandulaefolia ) and Europe ( A. lancea )},
	journal = {Turk. J. Bot.},
	volume = {35},
	year = {2011},
	month = {2011///},
	pages = {717 - 728},
	abstract = {Artemisia lancea Vaniot, A. argyi H.L{\'e}v. \& Vaniot, and A. lavandulaefolia DC., all native from eastern Asia, are reported as new alien taxa from Romania. A. lancea has not been recorded so far in Europe, while A. argyi and A. lavandulaefolia are naturalised in the European part of the former USSR. All 3 species were collected in the Socola railway yard in northeastern Romania; the specimens were deposited in the IASI Herbarium, at the University of Agricultural Sciences and Veterinary Medicine Ia{\c s}i. Th eir introduction was accidental, through the rail transport from the former USSR. Th e 3 species are perennial herbs, with white, glandular punctate leaves. All of them spread clonally, by stoloniferous rhizomes; A. argyi and A. lavandulaefolia produce fertile seeds, but only barren seeds were found in A. lancea , perhaps due to fertilisation failure. Th ey grow on disturbed ground associated with railways, together with other ruderal species, most of them characteristic to the class Artemisietea vulgaris . Th e description and distribution of the species, as well as some data related to their taxonomy, biology (including seed germination and chromosome numbers), ecology (habitats, plant communities), and general uses, are given in this paper. An identifi cation key for these species and other 2 related taxa is provided.},
	keywords = {Alien plants, Artemisia, cation key, chromosome numbers, identifi, Romania},
	url = {journals.tubitak.gov.tr/botany/issues/bot-11-35-6/bot-35-6-10-1007-4.pdf},
	author = {S{\^I}RBU, Culi{\c t}{\u a} and OPREA, Adrian}
}
@article {8357,
	title = {Molecular systematics of Echinops L. (Asteraceae, Cynareae): a phylogeny based on ITS and trnL-trnF sequences with emphasis on sectional delimitation},
	journal = {Taxon},
	volume = {59},
	year = {2010},
	month = {2010///},
	pages = {698 - 708},
	author = {S{\'a}nchez-Jim{\'e}nez, I. and Lazkov, G.A.}
}
@article {8175,
	title = {Combining numerical and traditional approaches to classify Echinops sphaerocephalus invaded communities in the Czech Republik},
	journal = {Phytocoenologia},
	volume = {39},
	year = {2009},
	month = {2009///},
	pages = {253 - 264},
	author = {Pet{\v r}{\'\i}k, P. and Dost{\'a}lek, J. and Neuh{\"a}uslov{\'a}, Z.}
}
@article {7856,
	title = {Herfstalsem (Artemisia verlotiorum Lamotte) aangetroffen in Rotterdam},
	journal = {Gorteria},
	volume = {32},
	year = {2007},
	month = {2007///},
	pages = {53 - 55},
	author = {R. Andeweg}
}
@article {7622,
	title = {Mano (Inula racemosa): little known aromatic plant of Lahaul Valley, India},
	journal = {Econ. Bot},
	volume = {34},
	year = {1980},
	month = {1980///},
	pages = {175 - 180},
	author = {R.K. Arora and M.L. Maheshwari and K.P.S. Chandel and R. Gupta}
}
@article {7192,
	title = {Erigeron huelsenii. Ein neuer Bastart aus der Posener Flora. {\"O}ster},
	journal = {Bot. Zeitschr},
	volume = {21},
	year = {1871},
	month = {1871///},
	pages = {346 - 347},
	author = {G. Vatke}
}
@article {7037,
	title = {Two alien species of Bidens (Asteraceae) new to the Bulgarian flora. Phytol},
	journal = {Balcan},
	volume = {15},
	year = {2009},
	month = {2009///},
	pages = {367 - 371},
	author = {A.S. Petrova and V. Vladimirov}
}
@article {6898,
	title = {Characterization of invasive Conyza species (Asteraceae) in Europe: quantitative trait and isozyme analysis},
	journal = {Amer. J. Bot},
	volume = {82},
	year = {1995},
	month = {1995///},
	pages = {360 - 368},
	author = {R.J. Abbot}
}
@article {dum3379,
	title = {La Flore Urbaine de Dunkerque (Nord) : Quelques Xenophytes Remarquables},
	journal = {Le Monde des Plantes},
	volume = {494},
	year = {2007},
	month = {2007},
	pages = {11-14},
	chapter = {11},
	author = {Filip Verloove}
}
@article {dum199,
	title = {Donnees Concernant la Repartition de Bidens frondosa L. var. anomala Port, Ex Fern, (Asteraceae) en Belgique},
	journal = {Dumortiera},
	volume = {17},
	year = {1980},
	month = {12/1980},
	pages = {17-18},
	chapter = {17},
	abstract = {Bidens frondosa L. var. anomala PORT, ex FERN, is niet zeldzaam langs het kanaal van Charleroi-Brussel. Dezelfde vari{\"e}teit werd ook gevonden langs de Samber (Landelies, sluis n{\textdegree} 9) en de Maas (Lives-S/Meuse).},
	author = {Ch. Van Damme}
}
@article {dum197,
	title = {Bidens frondosa L. var.  anomala Port, Ex Fern. (Asteraceae) en Belgique},
	journal = {Dumortiera},
	volume = {16},
	year = {1980},
	month = {10/1980},
	pages = {13},
	chapter = {13},
	abstract = {Widens frondosa L. var. anomala PORT, ex FERN. (Asteraceae) in Belgi{\"e}. Dit voor Belgi{\"e} nieuwe taxon wordt gekenmerkt door opwaarts gerichte weerhaakjes op de naalden van de vruchtjes.},
	author = {Ch. Van Damme}
}
@article {dum196,
	title = {Centaurea solstitialis},
	journal = {Dumortiera},
	volume = {12},
	year = {1979},
	month = {03/1979},
	pages = {32},
	chapter = {32},
	author = {M. De Ridder}
}
@article {117,
	title = {Petasites japonicus en voie de naturalisation dans le sud de la province de Hainaut (Belgique)},
	journal = {Dumortiera},
	volume = {98},
	year = {2010},
	pages = {13-22},
	chapter = {13},
	abstract = {Petasites japonicus is naturalizing in the south of the province of Hainaut (Belgium). Petasites japonicus subsp. giganteus was discovered in a small waste ground (probably an old garden) along a former railway line at Sivry-Rance (Walloon province of Hainaut, Belgium). Only male plants were found. An identification key to the four species of the genus Petasites occurring in Belgium, phenological observations, a description of the habitat of this neophyte, and an overview of records in Belgium are provided. The mode of introduction and its status in Wallonia are discussed.},
	author = {Jean-Michel LECRON}
}
@article {97,
	title = {Floristische nota. Senecio squalidus L. ook in Belgi{\"e}},
	journal = {Dumortiera},
	volume = {3},
	year = {1975},
	pages = {31},
	chapter = {31},
	author = {D{\textquoteright}hose, R.}
}
