Pacific Island Ecosystems at Risk (PIER)

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Paspalum dasypleurum
Kunze ex Desv., Poaceae
No images for this taxon


Present on Pacific Islands?  yes

Primarily a threat at high elevations?  yes

Other Latin names:  Paspalum cumingii Nees ex Steud.; Paspalum pachyrrhizum Steud.; Paspalum paradisiacum Steud.

Habit:  grass

Description:  "Perennial. Rhizomes short. Culms 60-80 cm long. Culm-internodes distally glabrous. Leaf-sheaths pilose. Ligule an eciliate membrane; 3-5 mm long; brown. Leaf-blades 6-20 cm long; 3-10 mm wide. Leaf-blade surface glabrous; hairless except near base. Inflorescence composed of racemes. Racemes 5-8; borne along a central axis; unilateral; 3-6 cm long. Central inflorescence axis 8 cm long. Rhachis wingless. Spikelet packing abaxial; 4 -rowed. Raceme-bases brief; pilose. Spikelets in pairs. Fertile spikelets pedicelled. Pedicels unequal. Fertile spikelets: Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; plano-convex; acute; 2-2.8 mm long; falling entire. Glumes one the lower absent or obscure; reaching apex of florets; thinner than fertile lemma. Upper glume ovate; 1 length of spikelet; membranous; without keels; 5 -veined. Upper glume margins ciliate. Upper glume apex obtuse. Florets: Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; 5 -veined; glabrous, or puberulous; ciliate on margins; obtuse. Fertile lemma elliptic, or ovate; 2-2.8 mm long; indurate; pallid; without keel. Lemma margins involute. Palea involute; indurate. Flower: Anthers 3. Caryopsis with adherent pericarp"  (GrassBase).

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

Propagation:  Seed

Native range:  Argentina and Chile (GRIN).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
invasive
Atkinson, Rachel/Sawyer, John (2011)
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
invasive
Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 556)
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
South America (Pacific rim)
South America (Pacific rim)
Chile (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 12 FEB 2011 and was last updated on 9 APR 2011.