Pacific Island Ecosystems at Risk (PIER)

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Soliva sessilis
Ruiz & Pav., Asteraceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Gymnostyles pterosperma Juss.; Soliva pterosperma (Juss.) Less.

Common name(s): [more details]

English: bindi weed, bindyi, field burweed, field soliva, jo-jo, jojoweed, lawn burweed, lawnweed, Onehunga-weed

Habit:  herb

Description:  "Prostrate annual, forming patches up to c. 40 cm in diameter. Stems sparsely to densely clothed in long hairs, especially toward tips, rooting at nodes. Basal and lower cauline leaves petiolate, sheathing at base, sparsely to moderately hairy, 2-3-pinnatisect, up to 5 x 1.5 cm; primary divisions in 2-5 pairs; ultimate segments narrow-elliptic to subulate, not all in one plane giving a somewhat feathery appearance to the leaf. Cauline leaves similar to basal but smaller, mostly 15 x 5-8 mm. Involucral bracts in 1-2 rows, hairy, acute to apiculate, 3-6 mm long. Capitula inconspicuous at flowering, usually scattered along stems, 4-10 mm in diameter at fruiting, with (3)-5-20-(27) mature achenes and central florets usually functionally ♂. Achenes glabrous or with short hairs on both surfaces and sometimes on wings, (2.5)-3-6 x 1.3-4.5 mm (including spine), with low central rib on outer face; lateral angles not winged or with narrow to broad thin wings; wings entire or shallowly to deeply 2-lobed, rounded at apex or extended into narrow projections; spine 1.3-2.5 mm long"  (Webb et al., 1988; p. 173).

Habitat/ecology:  In New Zealand, "lawns, playing fields and golf courses, pastures, and stony waste places"  (Webb et al., 1988; p. 173).

Propagation:  Seed.  "A troublesome weed, particularly when it occurs in lawns and greens, because the sharp achene spines catch in clothing and footwear and may puncture the skin"  (Webb et al., 1988; p. 173).

Native range:  Argentina, Brazil, Chile, Paraguay, Uruguay; naturalized elsewhere (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
cultivated
Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (pp. 499, 545, 557)
Voucher cited: Danton I(5/261)1607. "En RC, ya se encuentra en varios lugares del territorio de la Ilustre Municipalidad de Juan Fernández. Es una especie que no teme el pisoteo, que se instala rápidamente y de la cual su extensión está unida directamente con los trayectos del ganado y de los caballos".
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
Wagner, Warren L./Herbst, Derral R. (1995) (pp. 16-17)
Voucher cited: Cuddihy & Tunison 1891 (BISH, US)
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)
New South Wales introduced
invasive
National Herbarium of New South Wales (2013)
"Weed of lawns etc."
Australia
Australia (continental)
Queensland introduced
invasive
National Herbarium of New South Wales (2013)
"Weed of lawns etc."
Canada (British Colombia)
Province of British Columbia
Canada (British Columbia) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
Chile (continental)
Chile
Chile (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Japan
Japan
Japan (country) introduced
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 190)
New Zealand
New Zealand
New Zealand (country) introduced
invasive
Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 173)
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)
United States (west coast)
United States (west coast states)
USA (Washington) 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)
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 30 DEC 2011.