Western Australia Department of Agriculture (AgWest) Hawaiian Ecosystems at Risk project (HEAR) Global Compendium of Weeds (GCW) Global Compendium of Weeds
Helianthus x laetiflorus (Asteraceae)

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Presented here is summary information about the species Helianthus x laetiflorus from the Global Compendium of Weeds, and citations of references to this species as a weed. Definitions of terms are available in the GCW introduction View info about Adobe Acrobat PDF format. For further information--or to report corrections or concerns--contact webmaster@hear.org.

Synonyms/other Latin names: [ see GRIN ]

Status(es) (compiled for below "Data sources"): agricultural weed, cultivation escape, garden thug, naturalised [for definitions, see the GCW introduction View info about Adobe Acrobat PDF format.]

Origin (native to where): [no info]


Data sources:

Alanen, A., Bongard, T., Einarsson, E., Hansen, H., Hedlund, L., Jansson, K., Josefsson, M., Philipp, M., Sandlund, O.T., Svart, A.E., Svart, H.E. and Weidema, I. (2004?). Introduced Species in the Nordic Countries (Denmark) under Nordic Council of Ministers (NMR), subgroup Natur-og Friluftslivsgruppen. (cultivation escape)

Bernard H. Zandstra (2003). Weed Control Guide for Vegetable Crops. MSU Extension Bulletin E-433 (Revised November 2002). Department of Horticulture, Michigan State University (agricultural weed)

Botond, M. & Zoltán, B.D.(eds.) (2004) Biological Invasions in Hungary. Invasive Plants. TermészetBUVAR Alapítvány Kiadó. (naturalised)

Clement, E.J. and Foster, M.C. (1994) Alien plants of the British Isles. Botanical Society of the British Isles, London. (garden thug, naturalised)

Germplasm Resources Information Network G.R.I.N. GRIN (naturalised)

List of Mediterranean Weeds compiled by Sarah Brunel as part of the Medit Weeds Workshop June 2005. Chargée de mission "Plantes envahissantes" Conservatoire Botanique National Méditerranéen de Porquerolles 34 090 MONTPELLIER FRANCE

Muller, S. (coord.) (2004). Plamtes invasives en France. Muséum national d'historire naturelle, Paris. 108 p.

Pysek, P., Sadlo, J. and Mandak (2002) Catalogue of Alien Plants of the Czech Republic. Preslia, Praha. 74:97-186. (naturalised)

Pysek, P., Sádlo, J. and Mandák, B. (2003). Alien flora of the Czech Republic, its composition,structure and history. Plant Invasions: Ecological Threats and Management Solutions, Edited by L.E. Child, J.H. Brock, G. Brundu, K. Prach, P. Pyäek, P.M. Wade and M. Williamson pp. 113-130. (naturalised)

SMURPHBOT: A DATABASE OF FLORA OF NORTHEASTERN CANADA/U.S. Last Updated: January 14, 20043 Stephen D. Murphy, B.Sc. (Hons.), Ph.D. Associate Professor Dept. of Environment and Resource Studies, University of Waterloo, Waterloo, ON, N2L 3G1 Canada. Voice: 519-885-1211 ext. 5616 Fax: 519-746-0292 E-mail: sd2murph @ fes.uwaterloo.ca (naturalised)

Sergei L. Mosyakin and Oksana G. Yavorska (2002) The Nonnative Flora of the Kiev (Kyiv) Urban Area, Ukraine: A Checklist and Brief Analysis URBAN HABITATS, VOLUME 1, NUMBER 1 : ISSN 1541-7115 Sergei L. Mosyakin and Oksana G. Yavorska M.G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine, 2 Tereshchenkivska Street, Kyiv (Kiev), 01601 Ukraine; flora@ln.ua (naturalised)



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This page was created on 13 September 2007 by PT, and was last updated on 04 October 2007 by PT based on data from Rod Randall's Global Compendium of Weeds database dated 24 January 2007. Valid HTML 4.01!