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
Chile (continental)
Chile
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.