Pacific Island Ecosystems at Risk (PIER)

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Paspalum plicatulum
Michx., Poaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

Chinese: zhou fu que bai

English: brownseed paspalum, circularfruited birdseed

Spanish: camalote, pajilla, zacatón

Habit:  grass

Description:  "Culms erect, 60-12 cm. high; leaf blades 15-35 cm. long, 3-7 mm. broad, the margin ciliate near junction with sheath; racemes 5-10, regularly spaced, alternate, ascending, 4-6 cm. long; spikelets irregularly arranged in 3 rows, sparsely pubescent, 2.5-3 mm long, the lower lemma with short transverse wrinkles inside the raised margin"  (Smith, 1979; p. 336).

"Habit: Perennial; caespitose. Rhizomes short. Culms erect, or geniculately ascending; 30-120 cm long. Ligule an eciliate membrane; 2-3 mm long. Leaf-blades flat, or conduplicate; 15-30 cm long; 2-7 mm wide. Leaf-blade surface glabrous, or pilose. Leaf-blade apex acuminate. Inflorescence composed of racemes. Racemes 2-7; borne along a central axis; unilateral; 2-15 cm long. Central inflorescence axis 3-15 cm long. Rhachis wingless; angular; 1 mm wide. Spikelet packing irregular; 2-4 -rowed. Spikelets in pairs. Fertile spikelets pedicelled. Fertile spikelets: Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or obovate; dorsally compressed; plano-convex; obtuse; 2.3-3.2 mm long; falling entire. Glumes one the lower absent or obscure; reaching apex of florets; thinner than fertile lemma. Upper glume ovate; 1 times length of spikelet; membranous; without keels; 5 -veined. Upper glume surface glabrous, or puberulous. Upper glume apex obtuse. Florets:  Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 times length of spikelet; membranous; thicker on margins; 5 -veined; wrinkled; glabrous, or puberulous; obtuse. Fertile lemma ovate; gibbous; 2-3 mm long; indurate; dark brown; without keel. Lemma surface granulose. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate. GrassBase.

Habitat/ecology:  "Introduced into Fiji in 1957 for trial as a pasture grass"  (Smith, 1979; p. 336).  In New Caledonia, "en pâturages et parfois spontané sans être commun"  (MacKee 1994; p. 61).

Propagation:  Seed

Native range:  "The warmer parts of North and South America and the West Indies"  (Smith, 1979; p. 336).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Fiji
Fiji Islands
Vanua Levu Island introduced
cultivated
Smith, Albert C. (1979) (p. 336)
Vouchers cited: DA 15294, DA 15391
Fiji
Fiji Islands
Viti Levu Island introduced
cultivated
Smith, Albert C. (1979) (p. 336)
Voucher cited: DA 12581
New Caledonia
New Caledonia Archipelago
Île Grande Terre introduced
invasive
cultivated
MacKee, H. S. (1994) (p. 61)
Voucher cited: MacKee 38686
Wallis and Futuna
Wallis and Futuna (Horne) Islands
Wallis (‘Uvea) Island introduced
cultivated
Morat, Ph./Veillon, J.-M. (1985)
Morat & Veillon, 1985, cited in Meyer, 2007
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
China
China
China (People's Republic of) introduced
cultivated
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Cultivated in Gansu.
Colombia
Colombia
Colombia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Costa Rica
Costa Rica
Costa Rica (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
El Salvador
El Salvador
El Salvador (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
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)
Panama
Panama
Panama (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Perú
Perú
Perú (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)


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

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This page was created on 6 FEB 2007 and was last updated on 30 NOV 2008.