Present on Pacific Islands?  no

Primarily a threat at high elevations?  no

Other Latin names:  Eupatorium squalidum DC.

Habit:  shrub

Description:  "Herb or shrub 1-1.5 m tall; petioles 0.3-0.7 cm long; leaf blades (1-) 2-5 x 0.7-2.2 cm, elliptic, the lower surface pubescent and glandular; involucres 6-7 x 1.5-2 mm; corollas ca. 4.5 mm long; achenes ca. 3 mm long" (Berry et al., 1997; p. 249).

Habitat/ecology:  In Venezuela, "savannas, 100-500 m" (Berry et al., 1997; p. 249)

Propagation:  Seed

Native range:  Venezuela, Guyana, Suriname, Peru, Brazil, Bolivia (Berry et al., 1997; p. 249).

Presence:

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Australia Australia (continental)	Queensland	introduced invasive	Waterhouse, B. M (2003) (pp. 482-483) Subject of an eradication program.
Perú Perú	Perú (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)

Comments:  Apparently introduced to Queensland, Australia, as a contaminant of pasture seeds imported from Brazil (Waterhouse, 2003; p. 482-283).

Additional information:
Additional online information about Chromolaena squalida is available from the Hawaiian Ecosystems at Risk project (HEAR).

Information about Chromolaena squalida as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).

Taxonomic information about Chromolaena squalida may be available from the Germplasm Resources Information Network (GRIN).

References:

Berry, Paul E./Holst, Bruce K./ Yatskievych, Kay. 1997. Flora of the Venezuelan Guayana, vol. 3: Aralaceae-Cactaceae. Missouri Botanical Garden Press, St. Louis. .

U.S. Dept. Agr., Agr. Res. Serv. 2011. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.

Waterhouse, B. M. 2003. Know your enemy: recent records of potentially serious weeds in northern Australia, Papua New Guinea and Papua (Indonesia). Telopea 10(1):477-485.