Ageratum conyzoides

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Ageratum conyzoides
File:Ageratum conyzoides 1.jpg
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Eupatorieae
Genus:
Ageratum
Species:
A. conyzoides
Binomial name
Ageratum conyzoides
L. 1753 not Hieron. 1895 nor Sieber ex Steud. 1840[1]
Synonyms
Synonymy
  • Ageratum album Hort.Berol. ex Hornem.
  • Ageratum arsenei B.L.Rob.
  • Ageratum brachystephanum Regel
  • Ageratum ciliare L.
  • Ageratum ciliare Lour.
  • Ageratum coeruleum Desf. 1804, rejected name not Sieber ex Baker 1876
  • Ageratum cordifolium Roxb.
  • Ageratum hirsutum Lam.
  • Ageratum hirsutum Poir.
  • Ageratum humile Larran.
  • Ageratum humile Salisb.
  • Ageratum humile Larrañaga
  • Ageratum iltisii R.M.King & H.Rob.
  • Ageratum latifolium Cav.
  • Ageratum microcarpum (Benth. ex Benth.) Hemsl.
  • Ageratum muticum Griseb.
  • Ageratum obtusifolium Lam.
  • Ageratum odoratum Vilm.
  • Ageratum odoratum Bailly
  • Ageratum suffruticosum Regel
  • Cacalia mentrasto Vell. Conc.
  • Caelestina latifolia (Cav.) Benth. ex Oerst.
  • Caelestina microcarpa Benth. ex Oerst.
  • Caelestina suffruticosa Sweet
  • Carelia brachystephana (Regel) Kuntze
  • Carelia conyzoides (L.) Kuntze
  • Carelia mutica (Griseb.) Kuntze
  • Eupatorium conyzoides (L.) E. H. Krause
  • Eupatorium paleaceum Sessé & Moc.
  • Sparganophorus obtusifolius Lag.

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Ageratum conyzoides (Billygoat-weed, Chick weed, Goatweed, Whiteweed) is native to Tropical America, especially Brazil, and considered an invasive weed in many other regions. Herb 0.5–1 m. high, with ovate leaves 2–6 cm long, and flowers are white to mauve.[2]

In Vietnamese, the plant is called cứt lợn (Pig Feces) due to its growth in dirty areas.[3]

Uses

As a medicinal plant, Ageratum conyzoides has limited uses due to its toxicity. It is also an insecticide and nematicide.[4]

Toxicity

Ingesting A. conyzoides can cause liver lesions and tumors.[5][6] There was a mass poisoning incident in Ethiopia as a result of contamination of grain with A. conyzoides.[7] The plant contains the pyrrolizidine alkaloids lycopsamine and echinatine.

Weed risk

A. conyzoides is prone to becoming a rampant environmental weed when grown outside of its natural range. It is an invasive weed in Africa, Australia, Southeast Asia and the USA.[8][9] It is considered a moderate weed of rice cultivation in Asia.[10]

References

  1. ↑ Tropicos search for Ageratum conyzoides
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ vi:Cứt lợn
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ Global Compendium of Weeds, Ageratum conyzoides (Asteraceae)
  9. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  10. ↑ Lua error in package.lua at line 80: module 'strict' not found.

External links

Gallery

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