Biocontrol programmes are in place for a closely related National CDB Reports - Russia. Illinois, Online Database.
Effects of several chemicals and burial of seeds into the soil on dormancy-breaking of weed species.
National CDB Reports - Russia. Beijing and St Louis, China and USA: Science Press and Missouri Botanical Garden Press, 353 pp.Biodiversity CRTC, 2003.
HRAC/ NAHRAC/ WSSA.
Lady Bird Johnson Wildflower Center focused on protecting and preserving North America's native plants through native plant lists and image galleries, conservation, education, natural landscapes, seed collection - Millennium Seed Bank (MSB) Project, preserving and restoring native communities, spreading awareness on invasive species and gardening to attract wildlife. Browse pictures and read growth / cultivation information about Texan Great Ragweed (Ambrosia trifida var. This definition does not rely on the economic severity or geographic range of the problem, but on the documented ecological damage caused.Category II - Species that have shown a potential to disrupt native plant communities.
Flora of Beijing: An Overview and Suggestions for Future Research.
Conservatoire et Jardin Botaniques de la Ville de Geneve, Geneva, Switzerland, and South African National Biodiversity Institute, Pretoria, South Africa. These ranks carry no legal status.Each species' global rank is determined by NatureServe. Select the criterion by which you wish to search (Scientific name, Genus, Family, etc.) Royal Botanic Garden Edinburgh, 2003.
Jarvis CE; Turland NJ, 1998. List of quarantined harmful animals, illness of plants and weeds of Russian Federation., Kazakhstan:CABI, Undated. Euro+Med PlantBase - the information resource for Euro-Mediterranean plant diversity., Ma J, Liu Q, 2002. National Plant Germplasm System. trifida great ragweed Legal Status. Baton Rouge, USA: National Plant Data Center. Taxon, 47(2):347-370.Johnson B; Loux M; Nordby D; Sprague C; Nice G; Westhoven A; Stachler J, 2007. texana Scheele Texan Great Ragweed, Giant Ragweed Asteraceae (Aster Family) Synonym(s): Ambrosia aptera, Ambrosia trifida var. Baton Rouge, USA: National Plant Data Center. Filter by County - Counties to Include - ANY versus ALLFilter by County - Counties to Exclude - ANY versus ALL Volume 2. Annual, robust, taprooted, not rosetted, 1-stemmed at base, with ascending branches above midplant, in range < 60−450 cm tall; monoecious; shoots with only cauline leaves widely spaced with long internodes, The PLANTS Database. Gen. Pl. Flora Europaea, Database of European Plants (ESFEDS). Further research is required to investigate the molecular differences between native vs. alien populations of Abul Fatih HA; Bazzaz FA, 1979. Oklahoma, texana
Michigan, USA: Michigan State University. Flora of China Volumes 20-21 (Asteraceae). 353 pp. These subspecies have different distrubtions within North America, with A. trifida var.
Common Weeds of the Northern United States and Canada., Ottawa, Canada: Agriculture Canada. USDA-NRCS, 2016. When several references are cited, they may give conflicting information on the status. Australia's Virtual Herbarium., Australia: Council of Heads of Australasian Herbaria. Wallingford, UK: CABICABI, Undated a. CABI Compendium: Status as determined by CABI editor. Noxious Weed Information; This plant is listed by the U.S. federal government or a state.
Tillage is effective for control of seedlings of Flora of China Volumes 20-21 (Asteraceae)., Beijing; St Louis, China; USA: Science Press and Missouri Botanical Garden Press. Ambrosia trifida var. Louisiana, USA: University of New Orleans, 48 pp.Michigan State University, 2016.
Mulligan GA, 2000. Delivering Alien Invasive Species Inventories for Europe. Paris, France: European and Mediterranean Plant Protection Organization. Flora of Beijing: An Overview and Suggestions for Future Research. Strother JL, 2006.
PhD Thesis. The Linnean Collections.
USDA-ARS, 2016. A voucher may be a record of a plant's occurrence in a particular area, or a specific example of a plant used in a scientific investigation.Proper vouchers display all the necessary attributes for complete identification of the plant, and are to be accompanied by accurate locality, habitat, collection time, and collector data.Only plant populations vouchered by specimens deposited in Index Herbariorum