Zornia gibbosa Span., Fabaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

Chinese: ding gui cao

Habit:  herb

Description:  "Annual, branches prostrate or ascending, glabrous or pubescent. Leaf bifoliolate, petiole 6.0-20 mm long, leaflets 0.7-3.0 cm long, 3.5-10 mm broad, sessile, lanceolate, linear-lanceolate or linear, glandular punctate below, glabrous. Inflorescence a 3-12-flowered raceme, 2.5-10 cm long. Bracts foliaceous, up to 1.3 cm long, black dotted, completely enclosing the flower. Calyx 3.5-4 mm long, 2 upper teeth obtuse, united, ciliate above, 2 lateral teeth smaller, the lowest longest, acute, ciliate. Corolla 7-8 mm long. Fruit 1-6 jointed, joints c. 2.5 mm long, indehiscent, echinate"  (Flora of Pakistan).

Description from Flora of China online.

Habitat/ecology:  In China (native), "sandy places, floodplains; 100-1200 m"  (Flora of China online).

Propagation:  Seed

Native range:  Asia (GRIN).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Guam Guam Island	Guam Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (pp. 120-121)
Guam Guam Island	Guam Island	introduced	Raulerson, L. (2006) (p. 39)
Palau Palau (Belau ) (main island group)	Babeldaob Island	introduced cultivated	Space, James C./Lorence, David H./LaRosa, Anne Marie (2009) (p. 6) Voucher: Lorence 9817 (PTBG, BNM, NY, US)
Palau Palau (Belau ) (main island group)	Babeldaob Island		National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2008) (voucher ID: PTBG 110) Taxon name on voucher: Zornia gibbosa Span.
Palau Palau (Belau ) (main island group)	Peleliu (Beliliou) Island		Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
Papua New Guinea Papua New Guinea (eastern New Guinea Island)	Papua New Guinea (eastern New Guinea Island)	native	ILDIS Co-ordinating Centre (2013)
Philippines Philippine Islands	Philippine Islands	native	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)	Northern Territory	native	ILDIS Co-ordinating Centre (2013)
China China	China (People's Republic of)	native	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
China China	Hong Kong	native	Wu, Te-lin (2001) (p. 156)
Japan Japan	Japan	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Taiwan Taiwan Island	Taiwan Island	native	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Thailand Thailand	Thailand (Kingdom of)	native	ILDIS Co-ordinating Centre (2013)
Vietnam Vietnam	Vietnam (Socialist Republic of)	native	ILDIS Co-ordinating Centre (2013)

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)
Mauritius Mautitius Islands (Mauritius and Rodrigues)	Mauritius Island	introduced	ILDIS Co-ordinating Centre (2013)

Control:  If you know of control methods for Zornia gibbosa, please let us know.