Pacific Island Ecosystems at Risk (PIER)

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Anthemis cotula
L., Asteraceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

English: chamomile, dog fennel, foetid chamomile, mayweed, mayweed chamomile, stinking chamomile, stinking mayweed, stinkweed, wild chamomile

French: camomille des chiens, camomille maroute, camomille puante

Spanish: manzanilla hedionda

Habit:  herb

Description:  "Annuals, (5-) 15-35 (-90) cm, usually ill-scented. Stems green (sometimes red-tinged), usually erect, branched mostly distally or ± throughout, glabrous, glabrate, puberulent, or sparsely strigillose to strigoso-sericeous (glabrescent, hairs mostly medifixed) and gland-dotted. Leaf blades 25-55 x 15-30 mm, 1-2-pinnately lobed. Peduncles mostly (2-) 4-6 (-15) cm. Involucres 5-9 mm in diameter, ± villosulous to arachnose. Receptacles paleate mostly distally; paleae subulate to acerose 2-3+ mm (often gland-dotted). Ray florets 10-15, styliferous and sterile; corollas white, laminae 5-15+ mm. Disc corollas 2-2.5 mm (sparsely gland-dotted). Cypselae 1.3-2 mm, ribs ± tuberculate (furrows often gland-dotted); pappi 0"  (Flora of North America online).

Description from Flora of New Zealand.

Habitat/ecology:  In Hawai‘i, "sparingly naturalized in scattered localities"  (Wagner et al., 1999; p. 258).  In North America, "disturbed sites, clearings, fields, roadsides; 10-600 (-1500+) m"  (Flora of North America online).  In New Zealand, "Waste places, especially roadsides, pasture, lawns"  (Webb et al., 1988; p. 158).

Propagation:  Seed

Native range:  Canary and Madeira Islands, northern Africa, Europe, western Asia (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) (p. 551)
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 258)
Voucher cited: Rock 3374 (BISH)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 258)
State of Hawaii
Hawaiian Islands
Lāna‘i Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 258)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 258)
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)
"Grows in pastures and grassland".
Australia
Australia (continental)
Queensland introduced
invasive
National Herbarium of New South Wales (2013)
Canada (British Colombia)
Province of British Columbia
Canada (British Columbia) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
Japan
Japan
Japan (country) introduced
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 189)
New Zealand
New Zealand
New Zealand (country) introduced
invasive
Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 158)
United States (west coast)
United States (west coast states)
USA (Oregon) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
United States (west coast)
United States (west coast states)
USA (California) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
United States (west coast)
United States (west coast states)
USA (Washington) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
Also reported from
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Canada (except British Colombia)
Canada
Canada (country) introduced
Flora of North America Editorial Committee, eds. (2013)
United States (continental except west coast)
United States (other states)
United States (other states) introduced
Flora of North America Editorial Committee, eds. (2013)
United States (continental except west coast)
United States (other states)
USA (Florida) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized


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This page was created on 8 FEB 2011 and was last updated on 2 APR 2011.