Pacific Island Ecosystems at Risk (PIER)

  [   PIER species lists  ]   [   PIER home  ]

Solidago canadensis
L., Asteraceae
Click on an image for links to BIGGER PICTURES


Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

English: Canada goldenrod, Canadian goldenrod, common goldenrod

Habit:  herb

Description:  "Stems 6-20 dm long, densely spreading puberulent, especially above.  Leaves numerous and crowded, linear-lanceolate to lanceolate-elliptic, lower ones 5-15 cm long, 0.7-2.2 cm wide, 3-nerved, densely spreading puberulent, upper surface sometimes subglabrous.  Heads in open paniculate inflorescences, with numerous divaricate, recurved, 1-sided branches; involucre (2-) 2.5-4.5 mm high; ray florets (8-) 10-17 per head, rays 2-3 mm long; disk florets 2-8 per head.  Achenes puberulent"  (Wagner et al., 1999; p. 357).

Habitat/ecology:  "Grassland, forest edges, riparian habitats, disturbed sites.  This plant belongs to a highly variable species complex.  It forms extensive colonies with a high shoot density and covering large areas, eliminating almost all other species.  Individual clones expend rapidly by vegetative lateral growth.  The annual stems die in autumn and new shoots arise from the rhizomes in spring.  Once established, the plant remains dominant for a long period of time"  (Weber, 2003; p. 411).

Propagation:  Seed.  Also spreads vegetatively by means of rhizomes.  "Seeds are abundantly produced and dispersed by wind"  (Weber, 2003; p. 411).

Native range:  North America (Wagner et al., 1999; p. 357).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Cook Islands
Cook Islands
Cook Islands introduced
cultivated
McCormack, Gerald (2013)
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 357)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 357)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 357)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 357)
Japan (offshore islands)
Ogasawara (Bonin) Islands
Bonin (Ogasawara) Islands introduced
Kato, Hidetoshi (2007)
As Solidago altissima L. [Solidago canadensis L. subsp. altissima (L.) O.Bolos et Vigo, Solidago canadensis L. var. scabra Torr. & A. Gray]
New Caledonia
New Caledonia Archipelago
Île Grande Terre introduced
cultivated
MacKee, H. S. (1994) (p. 38)
Vouchers cited: MacKee 12416, MacKee 25399, MacKee 45668
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
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Australia
Australia (continental)
Queensland introduced
invasive
Queensland Herbarium (2002) (p. 7)
var. scabra
Canada (British Colombia)
Province of British Columbia
Canada (British Columbia) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Japan
Japan
Japan (country)   Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 343)
Japan
Japan
Japan (country) introduced
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 190)
var. canadensis and var. gilbocanescens Rydb.
Mexico
Mexico
Mexico (United Mexican States) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Baja Norte
New Zealand
New Zealand
New Zealand (country) introduced
invasive
Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 195)
"Waste places, especially roadsides".
United States (west coast)
United States (west coast states)
USA (Oregon) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
United States (west coast)
United States (west coast states)
USA (California) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
United States (west coast)
United States (west coast states)
USA (Washington) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)

Control: 

Physical:  "Repeated mowing or mulching and reseeding of native species.  Single clumps may be grubbed, rhizomes must be removed".

Chemical:  "Effective herbicides are 2,4-D or picloram"  (Weber, 2003; p. 411).


Need more info? Have questions? Comments? Information to contribute? Contact PIER! (pier@hear.org)

  [   PIER species lists  ]   [   PIER home  ]

This page was created on 22 FEB 2007 and was last updated on 15 JAN 2008.