Pacific Island Ecosystems at Risk (PIER)

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Pseudogynoxys chenopodioides
(Kunth) Cabrera, Asteraceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  High risk, score: 7 (Go to the risk assessment)

Other Latin names:  Senecio chenopodioides HBK.; Senecio confusus Britten; Senecio kermesinus Hemsl.

Common name(s): [more details]

English: Mexican flamevine, orange-flowered senecio

Habit:  vine

Description:  "Small herbaceous to large suffrutescent vines, the stems multistriate, sparsely hispidulous to almost glabrous, up to 5 m and perhaps longer; leaves alternate, petiolate or nearly sessile, lanceolate to lanceolate-ovate, rarely subcordate, acute or acuminate, densely hispidulous to glabrous, serrate-dentate, the teeth sometimes glandular, the blade 3-12 cm long and 1-7 cm broad; inflorescence a single head to a multicapitate panicle; heads heterogamous, variable in size, 1-3 cm high (commonly 1.5 cm) and as broad; involucre uniseriate, subtended usually by several conspicuous bracteoles, mostly about 1 cm long; phyllaries numerous, linear, acuminate, densely hispidulous to glabrous, the mid-nerve thickened, phyllaries half as long as the head or usually longer; ray corollas orange (usually) to reddish, uniseriate; disc corollas yellow to orange or red, mostly about 1 cm long, tubular to narrowly campanulate above; achenes hispidulous, cylindric, obscurely ridged, to about 4 mm long; pappus abundant, white, slightly shorter than the disc corollas" (Nash & Williams, 1976; pp. 406-407).

Habitat/ecology:  In Guatemala, "thickets and forest edges, commonly at 700-1,200 m but found from near sea level to 2,200 m" (Nash & Williams, 1976; pp. 406-407).

Propagation:  Seed

Native range:  Mexico, Central America to Guyana, Suriname, Venezuela and Colombia (GRIN).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Ecuador (Galápagos Islands)
Santa Cruz Group
Santa Cruz Island introduced
cultivated
Charles Darwin Foundation (2008)
French Polynesia
Society Islands
Tahiti Island introduced
cultivated
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Vouchers cited: as Senecio chenopodioides K.S. Kunth.: J. Florence 2862 (PAP) as Senecio confusus J. Britten: J. Florence 6629 (PAP)
Ornementale rare.
Guam
Guam Island
Guam Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 290)
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
cultivated
Parker, James L./Parsons, Bobby (2012) (p. 57)
Voucher cited: J. Parker & R. Parsons BIED71 (BISH)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Starr, Forest/Starr, Kim (year unknown)
http://www.hear.org/mysteryplants/autogendhtml/mysteryplant3.htm
Marshall Islands
Ratak Chain
Majuro (Mãjro) Atoll introduced
cultivated
Vander Velde, Nancy (2003) (p. 72)
Planted ornamental.
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Colombia
Colombia
Colombia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Costa Rica
Costa Rica
Costa Rica (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
El Salvador
El Salvador
El Salvador (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Guatemala
Guatemala
Guatemala (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Honduras
Honduras
Honduras (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Mexico
Mexico
Mexico (United Mexican States) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Nicaragua
Nicaragua
Nicaragua (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Panama
Panama
Panama (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Singapore
Singapore
Singapore (Republic of) introduced
cultivated
Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 73)
Cultivated only

Comments:  Reported as possibly an invasive plant in the Galápagos Islands per Charles Darwin Research Station.


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This page was created on 21 OCT 2004 and was last updated on 24 APR 2010.