Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

English: gamphrena

Spanish: arrasa con todo

Habit:  herb

Description:  "Perennial from firm taproot, erect or partly decumbent. Leaves with blades oblanceolate to elliptic, to 5 cm long, decrescent distally, base long-cuneate, decurrent on short, indistinct petiole, apex acute to acuminate, often apiculate. Inflorescences ovate to cylindrical, 0.6-2.7 cm long to 1.3 cm broad; bracts ovate, 1.3-2.2 mm long; bracteolaes more or less laciniate above, although often obscurely so, (3.1) 3.7-5.7 mm long, white to rosy. Tepals (2.5) 3.5-5 mm long" (Howard, 1988; pp. 168-169).

Habitat/ecology:  (no habitat/ecology info known by PIER)

Propagation:  Seed

Native range:  Florida (US), Mexico, Central America, Greater Antilles, Lesser Antilles, Bolivia, Paraguay (Howard, Howard, 1988; pp. 168-169).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Guam Guam Island	Guam Island	introduced invasive	Stone, Benjamin C. (1970) (p. 270)
Guam Guam Island	Guam Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 70)

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Costa Rica Costa Rica	Costa Rica (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
Ecuador (Mainland) Ecuador	Ecuador (Republic of) (continental)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
El Salvador El Salvador	El Salvador (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
Guatemala Guatemala	Guatemala (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
Honduras Honduras	Honduras (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
Mexico Mexico	Mexico (United Mexican States)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
Nicaragua Nicaragua	Nicaragua (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)
Panama Panama	Panama (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2009)

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

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

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

References:

Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce. 1979. A geographical checklist of the Micronesian dicotyledonae. Micronesica 15:1-295.

Howard, Richard A. 1988. Flora of the Lesser Antilles: Leeward and Windward Islands. Vol. 4, Dicotyledoneae-Part 1. Arnold Arboretum, Harvard University. 673 pp.

Stone, Benjamin C. 1970. The flora of Guam. Micronesica 6:1-659.

U.S. Dept. Agr., Agr. Res. Serv. 2009. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.