Pacific Island Ecosystems at Risk (PIER)

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Trifolium glomeratum
L., Fabaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Amoria glomerata (L.) Soják

Common name(s): [more details]

English: bush clover, cluster clover, clustered clover

French: trèfle aggloméré

Spanish: trebol

Habit:  herb

Description:  "Annual; stems glabrous, procumbent or ascending, not rooting at nodes. Leaves ± glabrous; petioles c. 5-20 mm long; leaflets obovate, acute to obtuse, mucronate, cuneate at base, finely serrate, c. 3-12 mm long; lateral veins thin and straight or slightly recurved and thickened toward leaflet margin; petiolules < 1 mm long, ± equal; stipules ovate, acuminate. Inflorescences axillary, spicate, globose, sessile or shortly pedunculate, mostly remote; flowers numerous, sessile or subsessile, remaining ± erect at fruiting; bracts subtending flowers free. Calyx glabrous, with 10-12 very distinct veins, not inflated at fruiting; throat open, glabrous; calyx teeth subequal, < corolla, ovate, acuminate, < tube, strongly recurved at fruiting; sinuses acute. Corolla pink to purplish, persistent, 3-5 mm long. Pod glabrous, straight, < calyx, 2-3 mm long, 1-2-seeded; seeds c. 1 mm in diameter"  (Webb et al., 1988; p. 686).

Habitat/ecology:  In New Zealand, "dry waste places and pasture, cultivated land, coastal areas"  (Webb et al., 1988; p. 686).  "In Chile this species grows in the following environmental conditions:  Low altitude, interior valleys; coastal mountains, 500-2000 m; coastal areas, 0-500 m. Dry, arid areas, with long drought periods of 6-10 months. precipitations of 100-300 mm. are concentrated in winter. Fully exposed to the sun, level areas or slopes facing north"  (Chileflora).

Propagation:  Seed

Native range:  Canary, Cape Verde and Madeira Islands; Europe; northern Africa; western Asia; widely naturalized (GRIN).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Australia (Pacific offshore islands)
Lord Howe Island
Lord Howe Island introduced
invasive
Orchard, Anthony E., ed. (1994)
"Found in pastures and cultivated ground".
Australia (Pacific offshore islands)
Norfolk Islands
Norfolk Island introduced
invasive
Orchard, Anthony E., ed. (1994)
"Found in pastures and cultivated ground".
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
cultivated
Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 558)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 712)
"Naturalized in lawns at Makawao Intermediate School".
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Australia
Australia (continental)
Australia (continental) introduced
ILDIS Co-ordinating Centre (2013)
Australian Capital Territory, South Australia, Tasmania, Victoria, Western Australia
Australia
Australia (continental)
New South Wales introduced
invasive
National Herbarium of New South Wales (2013)
"A common garden weed".
Australia
Australia (continental)
Queensland introduced
invasive
National Herbarium of New South Wales (2013)
"A common garden weed".
Chile (continental)
Chile
Chile (Republic of) introduced
invasive
Belov, Michail (2013)
Japan
Japan
Japan (country) introduced
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 185)
New Zealand
New Zealand
New Zealand (country) introduced
invasive
Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 686)
United States (west coast)
United States (west coast states)
USA (Oregon) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
United States (west coast)
United States (west coast states)
USA (California) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
Also reported from
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
United States (continental except west coast)
United States (other states)
United States (other states) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
Alabama, South Carolina
United States (continental except west coast)
United States (other states)
USA (Florida) introduced
U.S. Dept. Agr., Nat. Res. Cons. 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 14 FEB 2011 and was last updated on 8 MAR 2011.