Pacific Island Ecosystems at Risk (PIER)

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Desmodium intortum
(Mill.) Urb., Fabaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Hedysarum intortum Mill.

Common name(s): [more details]

Chinese: niu qu shan ma huang

English: beggar-lice, green-leaf desmodium, greenleaf tick trefoil

French: desmodie

Spanish: amor seco, desmodio verde, pega pega

Habit:  herb

Description:  "Prostrate or climbing herbs 3-10 dm tall; stems with white, spongy pith, densely hooked pubescent and often also pilose.  Leaves trifoliolate, leaflets broadly ovate to rhombic, terminal one 6-10 cm long, 4-6 cm wide, both surfaces appressed pilose, sometimes upper surface with a pale whitish mark along midrib, petioles 6-9 cm long.  Flowers numerous in racemose inflorescences 5-12 cm long, these often grouped into open paniculate inflorescences up to 40 cm or more long, rachis pubescent with minute hooked hairs, pedicels 5-7 mm long, deciduous with articles, pubescence same as rachis; corolla purplish red to violet, ca. 10 mm long.  Pods short-stipitate, 5-10-jointed, 2-4.5 cm long, densely pubescent with hooked hairs, articles nearly semicircular, 4-5 mm long, ca. 3 mm wide"  (Wagner et al., 1999; p. 667).

Habitat/ecology:  In Hawai‘i, "naturalized along roadsides and in pastures" (Wagner et al., 1999; p. 667).

Propagation:  Seed

Native range:  Central and South America (Wagner et al., 1999; p. 667).

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)
Fernandina Group
Fernandina Island possibly introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Isabela Group
Isabela Island possibly introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Isabela Group
Volcán Alcedo, Isabela Island possibly introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Isabela Group
Volcán Darwin, Isabela Island possibly introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Isabela Group
Volcán Sierra Negra, Isabela Island possibly introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Isabela Group
Volcán Wolf, Isabela Island possibly introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
San Cristóbal Group
San Cristóbal Island possibly introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Santa Cruz Group
Santa Cruz Island possibly introduced
invasive
Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands)
Santiago Group
Santiago Island possibly introduced
invasive
Charles Darwin Foundation (2008)
French Polynesia
Marquesas Islands
Nuku Hiva (Nukahiva) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
var. pilosiusculum (A.P. de Candolle) F.R. Fosberg
Adventice
French Polynesia
Marquesas Islands
Ua Pou (Huapu, Uapou, Uapu) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
var. pilosiusculum (A.P. de Candolle) F.R. Fosberg
Adventice
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 667-669)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
Staples, George W./Imada, Clyde T./Herbst, Derral R. (2003) (p. 11)
Voucher cited: W. Char s.n. (BISH 669055)
State of Hawaii
Hawaiian Islands
Maui Island introduced
Wester, Lyndon (1992) (p. 138)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Herbarium Pacificum Staff (1998) (p. 9)
Voucher cited: C. Imada, W. Char & T. Motley 97-001 (BISH)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Imada, Clyde T./Staples, George W./Herbst, Derral R. (2000) (p. 12)
Voucher cited: C. Imada 99-3 (BISH)
New Caledonia
New Caledonia Archipelago
Île Grande Terre introduced
invasive
cultivated
MacKee, H. S. (1994) (p. 83)
Vouchers cited: Blanchon 283 (NOU), Mackee 31330
Spontané
Papua New Guinea
Papua New Guinea (eastern New Guinea Island)
Papua New Guinea (eastern New Guinea Island) introduced
ILDIS Co-ordinating Centre (2013)
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
ILDIS Co-ordinating Centre (2013)
Australia
Australia (continental)
Queensland introduced
invasive
Queensland Herbarium (2002) (p. 3)
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)
Ecuador (Mainland)
Ecuador
Ecuador (Republic of) (continental) 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)
Japan
Japan
Japan (country) introduced
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 184)
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)
Perú
Perú
Perú (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Taiwan
Taiwan Island
Taiwan Island introduced
invasive
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
"100-1400 m".
Indian Ocean
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
La Réunion (France)
La Réunion Island
La Réunion Island introduced
ILDIS Co-ordinating Centre (2013)


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This page was created on 27 JUN 2004 and was last updated on 15 OCT 2006.