Pacific Island Ecosystems at Risk (PIER)

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Tripsacum latifolium
Hitchc., Poaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

English: wideleaf gamagrass

Habit:  grass

Description:  "Coarse perennial; culms as much as 6 meters high, glabrous, bearing slender branches from the upper nodes; blades 70 cm to more than 1 meter long, 2.5-8 cm wide, acuminate, especially the lower ones narrowed to a petiole-like base, papillose-pilose or papillose-hispid above, nearly glabrous beneath; spikes 2 or 3 in the terminal inflorescences, solitary on the branches, slender, drooping, both staminate spikelets of each pair sessile or subsessile, 4-6 mm long, obtuse, rather densely pubescent, the keels hispid toward the summit; joints of the pistillate part of the spike 5-7 mm long, the spikelet broadly ovate" (Stone, 1970; p. 240).

Description from GrassBase.

Habitat/ecology:  In Guatemala, "river banks, ravines, and open hills, sometimes forming extensive stands, up to 1,100 meters" (Swallen, 1955; p. 363).

Propagation:  Seed

Native range:  Mexico, Central America, West Indies (GRIN; Swallen, 1955; p. 363).

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. 240)
Present status unknown.
Persisting from plantings.
Guam
Guam Island
Guam Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 62)
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Guatemala
Guatemala
Guatemala (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Honduras
Honduras
Honduras (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Mexico
Mexico
Mexico (United Mexican States) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Nicaragua
Nicaragua
Nicaragua (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)

Comments:  An invasive grass.


Need more info? Have questions? Comments? Information to contribute? Contact PIER! (pier@hear.org)

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This page was created on 3 AUG 2000 and was last updated on 30 NOV 2008.