Pacific Island Ecosystems at Risk (PIER)

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Ammannia baccifera
L., Lythraceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Ammannia aegyptiaca Willd.

Common name(s): [more details]

Chinese: shui xian cai

English: amania, monarch redstem

Habit:  herb

Description:  "Plant 6.5-32 cm tall, rarely suffruticose. Leaves horizontal or drooping, obovate, obovate-lanceolate or ovate-oblong, acute or obtusish, base usually attenuate, sometimes cuneate or rounded, 1-47 mm long, 0.5-9 mm broad. Cymes ± sessile, glomerular. Flowers sessile or subsessile. Hypanthium 1-1.75 mm long, 1.5-2.5 mm broad. Epicalyx obscure. Petals absent. Style c. 0-0.25 (-0.5) mm. Capsule slightly exceeding the hypanthium, 1.25-1.5(-2) mm in diameter"  (Flora of Pakistan).

"Herbs, annual, 10-50[-100] cm tall. Stem with numerous, ascending branches. Leaves opposite on basal stem portion, opposite or alternate toward stem apices, narrowly elliptic or oblanceolate to linear, 5-60 x 3-10 mm, base attenuate, truncate, or subcordate. Flowers 3 to many in dense axillary cymes; pedicels subsessile, to 1 mm; peduncle absent to 1 mm; bracteoles minute, not reaching floral tube. Floral tube campanulate, tapering at base, 1-2 mm; sepals 4, ca. 0.5 mm, deltate; epicalyx absent. Petals absent. Stamens 4. Style absent to 0.3 mm, much shorter than ovary. Capsules 1-2 mm in diam., 1/4-1/2 exserted"  (Flora of China).

Habitat/ecology:  "A very variable species of rice fields and other wet places in [Pakistan] up to 1200 m"  (Flora of Pakistan).  "Wet places, farmland"  (Flora of China).

Propagation:  Seed

Native range:  India (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   Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
Palau
Palau (Belau ) (main island group)
Malakal (Ngemelachel) Island   Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
Palau
Palau (Belau ) (main island group)
Ngerkebesang Island   Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
Palau
Palau (Belau ) (main island group)
Peleliu (Beliliou) Island introduced
invasive
Space, James C./Lorence, David H./LaRosa, Anne Marie (2009) (p. 8)
Voucher cited: Lorence 9749 (PTBG, BISH, BNM, NY, TAMU, US)
Palau
Palau (Belau ) (main island group)
Peleliu (Beliliou) Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2008) (voucher ID: PTBG 41)
Taxon name on voucher: Ammannia baccifera L.
Philippines
Philippine Islands
Philippine Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Philippines
Philippine Islands
Philippine Islands   Merrill, Elmer D. (1923) (pp. 135-136)
In open damp waste places at low and medium altitudes, often abundant.
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) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Western Australia
Australia
Australia (continental)
Northern Territory native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Australia
Australia (continental)
Queensland native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Cambodia
Cambodia
Cambodia (Kingdom of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
China
China
China (People's Republic of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Wet places, farmland. Anhui, Fujian, Guangdong, Guangxi, Hebei, Hubei, Hunan, Jiangsu, Jiangxi, Shanxi, Yunnan, Zhejiang.
China
China
Hong Kong native
Wu, Te-lin (2001) (p. 158)
Japan
Japan
Japan (country) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
Japan
Japan
Japan (country) introduced
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 186)
Malaysia
Malaysia
Malaysia (country of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Singapore
Singapore
Singapore (Republic of) introduced
invasive
Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 13)
Naturalised
Taiwan
Taiwan Island
Taiwan Island native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Wet places, farmland.
Thailand
Thailand
Thailand (Kingdom of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Vietnam
Vietnam
Vietnam (Socialist Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Indian Ocean
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Mauritius
Mautitius Islands (Mauritius and Rodrigues)
Rodrigues Island native
U.S. Dept. Agr., Agr. Res. Serv. (2013)


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This page was created on 9 NOV 2008 and was last updated on 13 NOV 2008.