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Wats., Poaceae |
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Present on Pacific Islands? no
Primarily a threat at high elevations? no
Risk assessment results: High risk, score: 12 (Go to the risk assessment)
Common name(s): [more details]
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English: field lovegrass |
Habit: grass
Description: "Perennial; caespitose. Culms erect, or geniculately ascending; 40-80 cm long. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs ciliate. Ligule a fringe of hairs. Leaf-blades 20-40 cm long; 2-4 mm wide. Leaf-blade surface scabrous; rough adaxially. Inflorescence a panicle; deciduous as a whole. Panicle open; ovate; effuse; 20-40 cm long; 0.5-0.6 of culm length. Primary panicle branches ascending; subdividing 2-4 times. Panicle branches stiff. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 9-25 mm long. Spikelets comprising 8-15 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 5-12 mm long; 2 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes obscured by lemmas. Glumes deciduous; similar; shorter than spikelet. Lower glume lanceolate; 1 mm long; 0.66 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 1.5 mm long; 0.75 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute. Florets: Fertile lemma ovate; 2 mm long; membranous; keeled; 3 -veined. Lemma lateral veins distinct. Lemma apex acute. Palea keels scaberulous. Apical sterile florets resembling fertile though underdeveloped. Lodicules 2; cuneate; fleshy. Caryopsis with adherent pericarp; 0.7 mm long" (GrassBase).
Habitat/ecology: (no habitat/ecology info known by PIER)
Propagation: Seed
Native range: (native range not known by PIER)
Presence:
| Also reported from | |||
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Country/Terr./St. & Island group |
Location |
Cited status &
Cited as invasive & Cited as cultivated & Cited as aboriginal introduction? |
Reference &
Comments |
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United States (continental except west coast and Florida)
United States (other states) |
United States (other states) |
native
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U.S. Dept. Agr., Nat. Res. Cons. Serv. (2009) |
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United States (continental except west coast and Florida)
United States (other states) |
USA (Florida) |
native
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U.S. Dept. Agr., Nat. Res. Cons. Serv. (2009) |
Additional information:
Additional online information about Eragrostis elliottii is available from the Hawaiian Ecosystems at Risk project (HEAR).
Information about Eragrostis elliottii as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).
Taxonomic information about Eragrostis elliottii may be available from the Germplasm Resources Information Network (GRIN).
References:
U. S. Government. 2009. Integrated Taxonomic Information System (ITIS) (on-line resource).
U.S. Dept. Agr., Nat. Res. Cons. Serv. 2009. The PLANTS Database. National Plant Data Center, Baton Rouge, LA 70874-4490 USA.