Western Australia Department of Agriculture (AgWest) Hawaiian Ecosystems at Risk project (HEAR) Global Compendium of Weeds (GCW) Global Compendium of Weeds
Pyrus communis (Rosaceae)

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Presented here is summary information about the species Pyrus communis 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"): casual alien, cultivation escape, environmental weed, garden thug, naturalised, sleeper weed, weed [for definitions, see the GCW introduction View info about Adobe Acrobat PDF format.]

Origin (native to where): [no info]


Data sources:

CHECKLIST OF THE VASCULAR PLANTS OF FINLAND, based on Kurtto, A. & Lahti, T. 1987: Suomen putkilokasvien luettelo (Checklist of the vascular plants of Finland). - Pamphl. Bot. Mus. Univ. Helsinki 11: I.-VI + 1-163. The list includes all the vascular plants found in Finland up to 1987, excluding those only in cultivation (i.e. taxa found during the past few years - mainly casual plants or plants escaping from cultivation are missing, and erroneous records of the 1987 list have not been corrected)

Exotic Plant Species List Scientific and Common Names of known Exotic Plant Species in the Redwood National and State Parks. This list of exotic species was compiled from the park's plant species lists and herbarium specimens. The inventory of species and associated threat assessment are essential parts of the parks' Exotic Plant Management Plan. California State Parks, US National Park Service. Last Update: June 13, 2001

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.

Barker, W.R., R.M.Barker, J.P. Jessop & H.P. Vonow (Eds.) (2005). Census of South Australian Vascular Plants. 5th Edition. J. Adelaide Bot. Gard. Supplement 1. (Botanic Gardens of Adelaide & State Herbarium: Adelaide).

Environmental Weed List Victoria. Supplied by Weedmanager.Net (Source not cited but possibly drawn from Carr et al. Environmental Weeds of Victoria)

Essl, F. & Rabitsch, W. (eds.) (2002). Neobiota in Österreich. Umweltbundesamt GmbH, Wien.

Fern, K. (1992-97). Plants for a Future. A resource centre for edible and other useful plants. The Field, Penpol, Lostwithiel, Cornwall, PL22 0NG, England.

Germplasm Resources Information Network G.R.I.N. GRIN

Haysom, K.A. and Murphy, S.T.(2003). The status of invasiveness of forest tree species outside their natural habitat: a global review and discussion paper. Forest Health and Biosecurity Working Paper FBS/3E. Forestry Department. FAO, Rome.

Hill, M., Baker, R., Broad, G., Chandler, P.J., Copp, G.H., Ellis, J., Jones, D., Hoyland, C., Laing, I., Longshaw, M., Moore, N., Parrott, D., Pearman, D., Preston, C., Smith, R.M. and Waters, R.(2005). Audit of non-native species in England. English Nature Research Reports N° 662, English Nature.

Introduced (Naturalised) Flora of Ecuador: Catalogs on Web site of owners: http://www.ambiente.gov.ec/AMBIENTE/i3n2000 I3N.htm (If this link is broken, try www.ambiente.gov.ec, then access the data by clicking on "Ecuador Megadiverso" link at the top, then on "Biodiversidad del Ecuador" on the right, then on ""I3N"" on the left.) [ online info ]

Introduced (Naturalised) Species to the United States [USDA, NRCS 1999. The PLANTS database. National Plant Data Center, Baton Rouge, LA 70874-4490 USA. ]

Introduced plants in Galapagos. Introduced Species Registered in the Charles Darwin Research Station Herbarium as present in Galapagos (616 species, not including questionably native species), November 2004.

Invasive and Exotic Weeds. Invasive List: The Source for Information and Images of Invasive & Exotic Species. A joint project of The University of Georgia's Bugwood Network, USDA Forest Service and USDA APHIS PPQ.

John Hosking, NSW Department of Agriculture, Weed Database 30 April 2003

Landcare Research New Zealand (2001) Plant Names Database.

List of Pteridophtyes and Spermatophytes for the Canary Islands (Lista de Pterido y Spermatoe Indice) Presence or Absence is denoted on an island by island basis and introduced (naturalised) taxa are also denoted. 2002. Viceconsejería de Medio Ambiente. Gobierno de Canarias.

Lithuanian Invasive Species Database. The Database is aimed: to provide a qualified reference online system on invasive species in Lithuania; to serve a virtual forum on environmental and administrative issues related to biological invasions in Lithuania; to encourage the exchange of data among different geographical regions and serve a node in the global information network on invasive species Project is initiated by the National Advisory Council on Invasive Species established by the Ministry of Environment of Lithuania (ME, Order No. 352, July 1, 2002).

Mulvaney, M.J. (1991). Far from the Garden Path: An Identikit Picture of Woody Ornamanetal Plants Invading South-Eastern Australian Bushland. PhD Thesis. Dept. Biogeography and Geomorphology, Research School of Pacific Studies. Australian National University

Pat Enwright (2003) Adventive species of the Wellington Conservancy ecological district. Project initiated by John Sawyer of D.O.C and further refined and updated by Colin Ogle of Wanganui before Ewen Cameron and Mei Nee Lee of the Auckland Museum herbarium very kindly provided lists of adventive species by ecological district for the Wellington Conservancy from the AK database. I must also thank Ewen Cameron and Rhys Gardner for identification of a number of specimens included in this list, Phillipa Crisp from W.R.C. also supplied information on species recorded by or on behalf of W.R.C and not already included in the database. Pat Enwright pers. comm. [Pat.Enright@nz.towerlimited.com]

Preston, C.D., Pearman, D.A. and Dines, T.D. (2002) New Atlas of the British & Irish Flora. An Atlas of the Vascular Plants of Britain, Ireland, the Isle of Man and the Channel Islands. Oxford University Press. (naturalised)

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

Randall, R.P. & Kessal

Randall, R.P. (2001). Garden thugs, a national list of invasive and potentially invasive garden plants. Plant Protection Quarterly 16 (4), 138-171.

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

The Exotic Flora of Victoria. (1998) Data supplied by Department of Natural Resources and Environment, Victoria, State Herbarium.

This list of invasive plants affecting natural areas in the U.S. (including Hawaii) has been compiled from a wide variety of publications, reports, surveys, and occasional personal observations. Sources of plant lists include the National Park Service and other federal agencies, state and local natural resource and related departments, Exotic Pest Plant Councils and related organizations, The Nature Conservancy, and universities. Sources for each plant listed are provided on the table (a legend for the source code is provided from the REFERENCE(S) header). The current list includes over 1000 plants and is updated as needed. Please contact Jil Swearingen (jil_swearingen@nps.gov) regarding any errors, omissions or potential additions to the list.

Tyler W. Smith (2003) Checklist of the spontaneous flora of Royal Botanical Gardens' nature sanctuaries. Royal Botanical Gardens, Contribution No. 113, Ontario Canada. ISBN 0-9691759-3-0

Wildlife Atlas CAPS plant taxa - Census of Plants in New South Wales National Parks? New South Wales National Parks and Wildlife Service.



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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!