Pacific Island Ecosystems at Risk (PIER)

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Melampodium divaricatum
(Rich.) DC., Asteraceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Dysodium divaricatum Rich.

Common name(s): [more details]

English: blackfoot, golden button

Spanish: botón de oro, flor amarilla, hierba del chucho, hierba del sapo

Habit:  herb

Description:  "The root is a taproot and the stem is upright, somewhat woody, branched and cylindrical and reaches heights of 50 to 80 centimeters.  The leaves are opposite, 6 to 10 centimeters long and 3 to 5 centimeters wide and have irregular margins.  The flower head is bright yellow and is born on peduncles 2 to 3 centimeters long which arise from the leaf axils"  (Cardenas et al., 1972; p. 133).

Habitat/ecology:  "Annual broadleaf plant found in pastures, cultivated and perennial crops, roadsides and ditchbanks"  (Cardenas et al., 1972; p. 133).

Propagation:  Seed (Cardenas et al., 1972; p. 133).

Native range:  Mexico, Central America, northwestern Colombia, Brazil; also naturalized (GRIN).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Palau
Palau (Belau ) (main island group)
Babeldaob Island introduced
cultivated
Space, James C./Lorence, David H./LaRosa, Anne Marie (2009) (p. 5)
Planted as an ornamental on the national capitol grounds. Voucher: Lorence 9846 (PTBG, BNM, NY)
Palau
Palau (Belau ) (main island group)
Babeldaob Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2008) (voucher ID: PTBG 139)
Taxon name on voucher: Melampodium divaricatum (Rich.) DC.
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Central America
Central America (Pacific rim)
Costa Rica (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
El Salvador (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
Guatemala (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
Honduras (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
Nicaragua (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Central America
Central America (Pacific rim)
Panama (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)
South America (Pacific rim)
South America (Pacific rim)
Colombia native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Northwest Colombia
Indian Ocean
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Seychelles
Seychelles Islands
Seychelles Islands introduced
Invasive Species Specialist Group (2017)

Comments:  "Naturalized in the West Indies and Myanmar" (GRIN).

Control:  If you know of control methods for Melampodium divaricatum, please let us know.


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

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This page was created on 25 FEB 2007 and was last updated on 20 MAY 2013.