Taxon: Ageratina riparia (Regel) R. M. King & H. Rob.

A declared aquatic or terrestrial noxious weed and/or noxious-weed seed in these U.S. states (see state noxious weed lists), with links to state information or web documents:

HI*°.

ªAquatic.

*Terrestrial.

°In seed.

Link to noxious weed information from

Common names:

• creeping croftonweed   (Source: Noxweed Aust ) – English
  
• mistflower   (Source: Econ Pl Aust ) – English
  
• river-eupatorium   (Source: Noxweed Aust ) – English
  
• mistblom   (Source: Weeds SAfr 2001 ) – Afrikaans
  
• hamakua pamakani   (Source: F Hawaii ) – Hawaiian
  

Economic importance:

• Environmental: ornamental   (fide Invasive Pl Spec)
  
• Vertebrate poisons: mammals   (fide Connor, as Eupatorium riparium)
  
• Weed: also potential seed contaminant   (fide Noxweed Aust; Invasive Pl Spec; Weeds SAfr 2001)
  

More:

View toxicology references for Ageratina riparia from FDA Poisonous Plant Database

Distributional range:

      Native:

• NORTHERN AMERICA
  Central Mexico: Mexico - Michoacan [natzd.?], Veracruz [natzd.?]
• SOUTHERN AMERICA
  Caribbean: Cuba [natzd.?]; Jamaica [natzd.?]

      Naturalized: (links to other web resources are provided for some distributions)

• naturalized in s. Africa, tropical Asia, Australia, New Zealand, Canary Islands, Madagascar, Mascarenes, Hawaii, & Peru

References:

• Henderson, L. 2001. Alien weeds and invasive plants: a complete guide to declared weeds and invaders in South Africa. Plant Protection Research Institute, Handbook 12. (Weeds SAfr 2001)
• Holm, L. et al. 1979. A geographical atlas of world weeds. (Atlas WWeed)
• King, R. M. & H. Robinson. 1987. The genera of the Eupatorieae (Asteraceae). Monogr. Syst. Bot. Missouri Bot. Gard. 22. (Gen Eupat)
• Lazarides, M. & B. Hince. 1993. CSIRO Handbook of Economic Plants of Australia. (Econ Pl Aust)
• Parsons, W. T. & E. G. Cuthbertson. 1992. Noxious weeds of Australia. (Noxweed Aust)
• Seed Regulatory and Testing Branch, Agricultural Marketing Service, U.S.D.A. 1999. State noxious-weed seed requirements recognized in the administration of the Federal Seed Act. (State Noxweed Seed)
• Turner, B. L. 1996–. The comps of Mexico - a systematic account of the family Asteraceae. Phytologia Memoirs. (Comp Mex)
• Wagner, W. L. et al. 1990. Manual of the flowering plants of Hawai'i. (F Hawaii)
• Weber, E. 2003. Invasive plant species of the world: a reference guide to environmental weeds. (Invasive Pl Spec)

More:

Search AGRICOLA article citation database for citations referencing Ageratina riparia.

Search NCBI's Entrez search engine for PubMed citations referencing Ageratina riparia. Note: Defaults to a search by genus or species epithet if species binomial not found.

Synonyms:

• (≡) Eupatorium riparium Regel (basionym)
  

Check other databases for Ageratina riparia (Regel) R. M. King & H. Rob.:

• TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden
• ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
• AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
• Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.
  Note: Defaults to a search by genus or species epithet if species binomial not found.

Images:

• Disseminule drawings: U.S. National Seed Herbarium drawing
• Embryo drawing: U.S. National Seed Herbarium drawing

More:

• Check PlantSystematics.org for additional images
• Images Note: Be advised that their identity may be inaccurate. Proper identification of a plant may require specialized taxonomic knowledge or comparison with properly documented herbarium material.

Abbreviations & symbols in GRIN Taxonomy

---

| USDA | ARS | GRIN | NPGS | New Search |

---

Cite as:
USDA, ARS, National Genetic Resources Program.
Germplasm Resources Information Network - (GRIN) [Online Database].
National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?317712 (09 February 2010)

Please send us your comments

Ctrl P to print