Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Eupatorium pratense Klatt; Eupatorium pycnocephalum Less.

Common name(s): [more details]

English: purple malva

Habit:  herb

Description:  "Perennial, usually erect, herbaceous, and 3-5 dm tall, sometimes becoming woody toward base and more or less scrambling on other vegetation; stem and usually the leaves more or less viscid-villosulous or viscid-puberulent, especially upward, sometimes also atomiferous-glandular; leaves opposite, petiole mostly 1-5 cm long, blade mostly deltoid to broadly ovate or triangular-ovate, 2.5-8 cm log, 2-6 cm wide, evidently crenate, palmately or subpalmately 3-5-nerved; involucre 4-5 mm high, evidently puberulent or viscid-puberulent at least toward base ([Galapagos Islands;] sometimes glabrous in mainland forms), its bracts obviously imbricate in several series, conspicuously ribbed-striate (often with pair of prominent ribs flanking midline), relatively broad and blunt, the inner generally well over 0.5 mm (often 1 mm) wide at 0.5 mm from the broadly rounded to merely obtuse tip, the reduced outer bracts narrower and obtuse to merely acute; flowers mostly 11-26 in each head, blue or lavender through pink to white; achenes black, glabrous or nearly so, about 1.5 mm long" (Wiggins & Porter, 1971; pp. 333-334).

Habitat/ecology:  "A widespread weed in tropical and subtropical America" (Wiggins & Porter, 1971; pp. 333-334).

Propagation:  Seed

Native range:  Mexico, Central America, western South America (GRIN).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Ecuador (Galápagos Islands) Isabela Group	Isabela Island	introduced invasive	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Isabela Group	Volcán Sierra Negra, Isabela Island	introduced invasive	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Santa Cruz Group	Santa Cruz Island	introduced invasive	Charles Darwin Foundation (2008)

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Colombia Colombia	Colombia (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Costa Rica Costa Rica	Costa Rica (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Ecuador (Mainland) Ecuador	Ecuador (Republic of) (continental)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
El Salvador El Salvador	El Salvador (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Guatemala Guatemala	Guatemala (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Honduras Honduras	Honduras (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Mexico Mexico	Mexico (United Mexican States)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Panama Panama	Panama (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Perú Perú	Perú (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)

Comments:  Probably not native to the Galápagos Islands; probably introduced per Charles Darwin Research Station.

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

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

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

References:

Charles Darwin Foundation. 2008. Database inventory of introduced plant species in the rural and urban zones of Galapagos. Charles Darwin Foundation, Galapagos, Ecuador.

Charles Darwin Research Station. 2005. CDRS Herbarium records.

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

Wiggins, I. L./Porter, D. M. 1971. Flora of the Galapágos Islands. Stanford University Press. 998 pp.