Rhoads AF; McKinley Klein W Jr, 1993. Online Database, Beltsville, USA: National Germplasm Resources Laboratory. Escaped woody garden plants - a problem in Danish nature? Hämet-Ahli L; Suominen J; Ulvinen T; Uotila P, 1998. Common Name: Japanese Barberry Scientific name: Berberis thunbergii, syn. Distribution and spreading of alien trees and shrubs in south western Germany and contributions to germination biology. Wallingford, UK: CABI, CABI, Undated a. CABI Compendium: Status inferred from regional distribution. http://www.rbg.ca/cbcn/en/invasives/i_list.html. American Nurseryman, 156(9):83-85. Pests of ornamental plants: the barberry aphid Liosomaphis berberidis (Kaltenbach) syn. Rhamnus cathartica (Common buckthorn , European buckthorn). RHS, 1989. Thunberg). Hedychium flavescens. Small seedlings should be pulled as soon as they are found or a shovel will be needed to dig them up if they are allowed to get over two inches in size. 19-28. https://npgsweb.ars-grin.gov/gringlobal/taxon/taxonomysearch.aspx, http://tncweeds.ucdavis.edu/moredocs/berthu01.pdf, http://nb.au.com/nswweedsoc/January2003/2.htm, http://www.rbg.ca/cbcn/en/invasives/i_list.html, Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Breeding for ever-red barberries (Berberis spp.). Knox GW; Hamilton DF, 1982. Leiden, The Netherlands: Backhuys Publishers, 285-297. Impact of herbivory of white-tailed deer (Odocoileus virginianus) on plant community composition. When several references are cited, they may give conflicting information on the status. National Plant Data Center, Baton Rouge, USA. American Nurseryman, 167(12):13. Tolerance of some trees and shrubs to saline conditions. Gorteria, 27(5):97-108. When using herbicides remember to follow label-recommendations. Entomologische Berichten, 60(10):181-184; 77 ref. Aspects of Applied Biology, No. Greensboro, North Carolina, USA: National Plant Data Team. Chemical characteristics of fruits of some Berberis species introduced into the Belorussian SSR. Brooklyn, New York, USA: Brooklyn Botanic Garden Publications. Pale yellow flowers hang in umbrella-shaped clusters and appear in April to May. Japanese Barberry is avoided by deer, giving this invasive shrub a competitive advantage. Botanical Gazette, 84:225-263. Canadian Botanical Conservation Network, Hamilton, Ontario, Canada. Proceedings of BIOGEONOM, TheThird International Symposium on Ecosystem Behavior, Villanova University. Linzer Biologische Beiträge, 29(1):385-506. Flora of Finland. Labanowski G, 1990. Identification: Japanese Barberry is a deciduous spiny shrub that grows 2 to 8 feet high. JaSkiewicz B; lagowska B; Gantner M, 2001. Henderson L, 2001. Hartvig P, 2002. Kourtev PS; Ehrenfeld JG; Häggblom, 2003. Invasive Plant Fact Sheet. October 2011. Birds and small mammals spread the seeds, which have a 90% germination rate. Journal of the Torrey Botanical Society, 124(2):210-215; 17 ref. Hosking JR, 2003. JaSkiewicz B; lagowska B; Gantner M, 2001. Hosking JR, 2003. Aphis berberidis Kalt. Plant Invasions: Ecological Mechanisms and Human Responses. Böcker R, Dirk M, 1998. Shapiro D K, Anikhimovskaya L V, Narizhnaya T I, Vereskovskii V V, 1983. Identification: Japanese barberry is a small-to-medium, densely branched and thorny perennial shrub, typically 3-6’ tall. Rhodora, 102(911):332-354; 62 ref. The myth of the resilient forest: case study of the invasive Norway maple (Acer platanoides). © Copyright 2020 CAB International. USDA-ARS, 2003. The bark is brown and deeply grooved with a spine at each node. April 2009. Invasive Plants: Weeds of the Global Garden. Shrubs usually have multiple stems and can be upright or spreading and range from 1 – >5’in width. Kourtev PS; Ehrenfeld JG; Huang WZ; Wieder RK; Novak M; Cerny J, 1998. Invasive Plant Atlas of New England. Edition 4. Royal Botanical Gardens Canada, 2003. https://plants.sc.egov.usda.gov. Philadelphia, USA: University of Pennsylvania Press. Annales Universitatis Mariae Curie-Skodowska. Common Name: Japanese barberry Plant Taxonomy: Family Berberidaceae. Anon., 1988. Bright red berries mature during summer and fall and persist through the winter. Wallingford, UK: CABI. USDA-NRCS, 2002. Labanowski G, 1990. Common Name: Japanese Barberry. Terabayashi S, 1987. (for C.P. Due to the likelihood of seeds being present in the immediate area, annual monitoring may be needed to control new seedlings for several years after removal of source plants. The Royal Horticultural Society Gardeners' Encyclopaedia of Plants and Flowers. The vascular flora of Pennsylvania: annotated checklist and atlas. Invasive Plants List. May 2014, Public Domoian - Released by Cbaile19/via wikipedia - CC0 1.0 Universal (CC0 1.0). Compendium record. Progress in Plant Protection, 38(2):416-418; 14 ref. The PLANTS Database. NSW Agriculture and CRC for Weed Management Systems., Tamworth, Australia: http://nb.au.com/nswweedsoc/January2003/2.htm. Soika G; labanowski G, 1998. Aphids inhabiting certain ornamental shrubs in urban conditions. 44:445-450; 21 ref. In: Ochrona Roslin, 34 (6) 24. https://npgsweb.ars-grin.gov/gringlobal/taxon/taxonomysearch.aspx. One or more of the features that are needed to show you the maps functionality are not available in the web browser that you are using. New York, USA: MacMillan Co. Rhoads AF; Block TA, 2000. Wittman H; Pilsl P, 1997. Dansk Dendrologisk Ǻrsskrift. Escaped woody garden plants - a problem in Danish nature? Leiden, Netherlands: Backhuys Publishers. Pests of ornamental plants: the barberry aphid Liosomaphis berberidis (Kaltenbach) syn. Annales Universitatis Mariae Curie-Sk. Kakishima M; Sato S, 1979. Sectio EEE, Horticultura, 9:99-107; 17 ref. Structure and dynamics of populations of Japanese barberry (Berberis Thunbergii DC.) Invasive Plants List., Hamilton, Ontario, Canada: Canadian Botanical Conservation Network. Brunelle H, Lapin B, 1996. In: Germplasm Resources Information Network (GRIN). Rastitel'nye-Resursy, 19(1):84-89. More information about modern web browsers can be found at http://browsehappy.com/. by Starfinger U, Edwards K, Kowarik I, Williamson M]. Berberis thunbergii, Japanese barberry. Dansk-Dendrologisk Arsskrift, 20:19-28. Catalog of Species. Alien Weeds and Invasive Plants. Cape Town, South Africa: Paarl Printers. Rehder A, 1940. Aphis berberidis Kalt. Reports on the flora of the Province Salzburg. Grown for its interesting foliage colors, deer resistance and adaptability to urban growing conditions, Japanese barberry has been discovered naturalizing in understory wooded areas in Minnesota. Institute of Food and Agricultural Sciences, University of Florida, USA: Environmental Horticulture Department, Florida Cooperative Extension Service. Christenhusz MJM; Uffelen GAvan, 2001. Germplasm Resources Information Network (GRIN). The tree has small, oval-shaped leaves that may be tinted green, blue, or red. Webb SL; Dwyer M; Kaunzinger CK; Wyckoff PH, 2000. http://www.ars-grin.gov/cgi-bin/npgs/html/tax_search.pl, USDA-NRCS, 2002. If digging is not an option, cut entire shrub back to the ground in late summer and treat cut ends with undiluted glyphosate concentrate (53.8% preferable but 41% probably okay). Native To: Japan (Zouhar 2008) Date of U.S. Introduction: 1875 (DeGasperis et al. London, UK: Dorling Kindersley. Chemical characteristics of fruits of some Berberis species introduced into the Belorussian SSR. Japanese barberry, foliage in April - Photo by James H. Miller; USDA, Forest Service. Davis OH, 1927. Ehrenfeld JG, 1999. atropurpurea. http://tncweeds.ucdavis.edu/moredocs/berthu01.pdf. The Plants of Pennsylvania: An Illustrated Manual. Berberis thunbergii (Japanese barberry); flowers and foliage.