Chenopodium murale L., Chenopodiaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Chenopodiastrum murale (L.) S. Fuentes et al.

Common name(s): [more details]

English: Australian-spinach, nettle goosefoot, nettle-leaf goosefoot, nettle-leaved fat-hen, salt-green, sowbane

French: chenopode des murs

Hawaiian: ‘āheahea

Spanish: cardo russo, chual, hierba del gallinazo, quelite cenizo, quelito de coyote, quinguilla

Habit:  herb

Description:  "Annual herbs; stems erect or ascending, 3-10 dm long, usually many-branched, mealy pubescent especially on young parts, rarely densely so.  Leaves variable, usually rhombic-ovate, 1.5-9 cm long, 0.8-5 (-7) cm wide, mealy pubescent at least on lower surface, margins with 5-15 coarse, more or less irregular, ascending teeth on each side.  Flowers in small, dense glomerules grouped into leafy, terminal and axillary, divaricately branched cymes up to ca. 5 cm long; calyx ca. 1 mm long, not completely enclosing the fruit at maturity, papillose and with a raised keel toward apex. Seed black, not especially shiny, horizontal, 1.2-1.5 mm in diameter, acutely keeled, the surface under high magnification marked with minute rounded pits."  (Wagner et al., 1999; p. 538).

Habitat/ecology:  "Adapted to many ecological conditions but grows most vigorously in soils rich in nitrogen.  It grows from sea level to over 2000 m and in open and shaded sites.  When growing under favorable conditions, the plants are over 1 m tall before flowering" (Holm et al., 1997; p. 180).

In Hawai‘i, "naturalized in dry, disturbed habitats, 0-2,750 m.  In Tonga, "uncommon in disturbed places" (Whistler, 1988; p. 8). In New Caledonia, "espèce rudérale largement répandue sans être abondante; cultivée jadis etparfois employée à présent comme plante médicinale et pour éloigner la vermine du poulailler" (MacKee, 1994; p. 29).

Propagation:  Seed

Native range:  Mediterranean region to southwestern Asia (Wagner et al., 1999; p. 538). 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	Pickard, J. (1984) (p. 206)
Australia (Pacific offshore islands) Lord Howe Island	Lord Howe Island	introduced invasive	Orchard, Anthony E., ed. (1994) (p. 19) "A common weed of waste places". Vouchers cited: A.N. Rodd 1453 (K, NSW), L.A.S. Johnson & A.N. Rodd 1296 (K, NSW)
Australia (Pacific offshore islands) Norfolk Islands	Norfolk Island	introduced invasive	Orchard, Anthony E., ed. (1994) (p. 8) "A common weed of waste places". Vouchers cited: P.S. Green 1450 (A); P.S. Green 1495 (A); 1902, J.H. Maiden & J.L. Boorman (NSW)
Chile (offshore islands) Juan Fernández Islands	Isla Más a Tierra (Robinson Crusoe Island)	introduced	Skottsberg, Carl (1953) (p. 216)
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	Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 552)
Chile (offshore islands) Juan Fernández Islands	Isla Más Afuera (Alejandro Selkirk Island)	introduced	Skottsberg, Carl (1953) (p. 216)
Chile (offshore islands) Juan Fernández Islands	Isla Más Afuera (Alejandro Selkirk Island)	introduced invasive	Atkinson, Rachel/Sawyer, John (2011)
Chile (offshore islands) Juan Fernández Islands	Isla Más Afuera (Alejandro Selkirk Island)	introduced invasive	Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 552)
Chile (offshore islands) Juan Fernández Islands	Isla Santa Clara	introduced	Skottsberg, Carl (1953) (p. 216)
Chile (offshore islands) Juan Fernández Islands	Isla Santa Clara	introduced invasive	Atkinson, Rachel/Sawyer, John (2011)
Chile (offshore islands) Juan Fernández Islands	Isla Santa Clara	introduced invasive	Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 552)
Ecuador (Galápagos Islands) Floreana Group	Floreana Island	introduced invasive	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Isabela Group	Isabela Island	introduced invasive	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Isabela Group	Volcán Sierra Negra, Isabela Island	introduced invasive	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) San Cristóbal Group	San Cristóbal Island	introduced invasive	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Santa Cruz Group	Santa Cruz Island	introduced invasive	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Santiago Group	Santiago Island	introduced invasive	Charles Darwin Foundation (2008)
State of Hawaii Hawaiian Islands	Hawai‘i (Big) Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 538)
State of Hawaii Hawaiian Islands	Kaho‘olawe Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 538)
State of Hawaii Hawaiian Islands	Kaua‘i Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 538)
State of Hawaii Hawaiian Islands	Kure Atoll	introduced invasive	Starr, Forest/Martz, Kim/Loope, Lloyd (2001) (p. 10) Occasional near quarters, southwest end of runway, and near base of old LORAN tower.
State of Hawaii Hawaiian Islands	Lāna‘i Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 538)
State of Hawaii Hawaiian Islands	Ni‘ihau, Lehua Islet	introduced invasive	Wood, K. R./LeGrande, Maya (2006) (p. 22) Vouchers cited: Lorence et al. 7127 (BISH, PTBG, US), K.R. Wood et al. 11346 (BISH, PTBG, US), K.R. Wood et al. 9224 (BISH, PTBG)
State of Hawaii Hawaiian Islands	Maui Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 538)
State of Hawaii Hawaiian Islands	Moloka‘i Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 538)
State of Hawaii Hawaiian Islands	Ni‘ihau Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 538)
State of Hawaii Hawaiian Islands	O‘ahu Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 538) Voucher cited: Mann & Brigham 80 (BISH)
State of Hawaii Hawaiian Islands	Tern Island	introduced invasive	Starr, Forest/Martz, Kim (1999) (p. 6) Common everywhere.
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced invasive	Tassin, Jacques (2005)
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced	MacKee, H. S. (1994) (p. 29) Vouchers cited: Pancher 439, Barrau 47, Mme. Catala in Baumann 7305, MacKee 11850
Philippines Philippine Islands	Philippine Islands		Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James (1997) (p. 178)
Tonga Tongatapu Group	Tongatapu Island		Whistler, W. A. (1992) (p. 14) Vouchers cited: Ilolahia 139 (1958), Soakai 391, Soakai 813, Soakai 918 (1959)
United States (other Pacific offshore islands) Johnston Atoll	Johnston Island	introduced invasive	Amerson, A. Binion, Jr./Shelton, Philip C. (1976) (p. 54)
United States (other Pacific offshore islands) Midway Atoll	Midway Atoll	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 538)
United States (other Pacific offshore islands) Midway Atoll	Sand Island	introduced invasive	Starr, Forest/Starr, Kim/Loope, Lloyd (2008) (pp. B-6)

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) Naturalised
Australia Australia (continental)	Australia (continental)	introduced invasive	National Herbarium of New South Wales (2013) South Australia, Victoria, Western Australia Naturalised
Australia Australia (continental)	Northern Territory	introduced invasive	National Herbarium of New South Wales (2013) Naturalised
Australia Australia (continental)	Queensland	introduced invasive	National Herbarium of New South Wales (2013) Naturalised
Central America Central America (Pacific rim)	Honduras (Republic of)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 83)
Japan Japan	Japan	introduced	Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 182)
Mexico Mexico	Mexico (United Mexican States)		Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James (1997) (p. 178)
New Zealand New Zealand	New Zealand (country)	introduced invasive	Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 527) "Widespread in waste places, roadsides, cultivated ground, open disturbed coastal areas, and sometimes in poor or depleted pasture".
South America (Pacific rim) South America (Pacific rim)	Chile (Republic of)		Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James (1997) (p. 178)
South America (Pacific rim) South America (Pacific rim)	Perú (Republic of)		Holm, Leroy/Doll, Jerry/Holm, Eric/Pancho, Jaun/Herberger, James (1997) (p. 178)

Control:  If you know of control methods for Chenopodium murale, please let us know.