Pacific Island Ecosystems at Risk (PIER)

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Eleocharis geniculata
(L.) Roem. & Schult., Cyperaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

Chinese: hei zi bi qi

English: bent spikerush, Canada spikesedge, spike rush, spikerush

French: scirpe genouillé

I-Kiribati: te maunei

Kwara‘ae: ngwano

Maori (Cook Islands): remu, rimu

Marshallese: kube in jemin, kubwe in jemin Inidel, kubwe in jenen Iniriñ, pãdãdijmaan, pãdãlimaan

Palauan: kerdikes

Pohnpeian: mahtamat

Spanish: cebolleta de pantano, junco de espiga elegante, mara, piso

Tuvaluan: mouku loa

Habit:  sedge

Description:  "Annuals, culms densely tufted, pale or green and slightly glaucous, filiform, 7-30 cm tall, 0.2-0.5 mm in diameter.  Sheaths pale green, often tinged reddish brown in lower part, o.5-3 cm long, orifice truncate.  Spikelets many-flowered, rusty or pale brown, broadly ovoid to ovoid-ellipsoid, 3-7 mm long, 3-4 mm wide, obtuse; glumes pale brown, membranous, broadly elliptic to ovate, ca. 2 mm long, obtuse, the mid-nerve green, ending below the glume apex; bristles 6-7, rusty brown, retrorsely spinulose, slightly longer than the achene; style base depressed-conical, nearly 1/3 as wide as achene; stigmas 2.  Achenes black, glossy, smooth, broadly obovoid, thickly biconvex, ca. 1 mm long"  (Wagner et al., 1999; pp. 1402-1403).

Habitat/ecology:  In Hawai‘i, "naturalized in moist ground, marshy places, salt marshes, taro paddies and seeps, 0-760 m"  (Wagner et al., 1999; pp. 1402-1403).  In Fiji, "a naturalized adventive but apparently not common, occurring between sea level and 200 m in low-lying wet areas near coasts, often in coral sand, or in forest in rocky places"  (Smith, 1979; p. 240).  In Guam, "in marshes, swamps, and at the edges of mangrove swamps. (Stone, 1970; p. 171).

Propagation:  Seed

Native range:  "Widespread in tropical and subtropical regions of both hemispheres"  (Smith, 1979. p. 240).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
American Samoa
American Samoa Islands
American Samoa Islands   Waterhouse, D. F. (1997) (p. 61)
American Samoa
Swain's Island
Swain's Island native
Whistler, W. A. (1983) (p. 17)
Voucher cited: Whistler 3352A
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Rota Island native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Saipan Island native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Cook Islands
Northern Cook Islands
Manihiki Atoll   McCormack, Gerald (2013)
Cook Islands
Northern Cook Islands
Nassau Island   McCormack, Gerald (2013)
Cook Islands
Northern Cook Islands
Rakahanga Atoll   McCormack, Gerald (2013)
Cook Islands
Northern Cook Islands
Rakahanga Atoll   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1985) (voucher ID: PTBG 41602)
Taxon name on voucher: Eleocharis geniculata
Cook Islands
Southern Cook Islands
‘Atiu Island   McCormack, Gerald (2013)
Cook Islands
Southern Cook Islands
Ma‘uke Island   McCormack, Gerald (2013)
Cook Islands
Southern Cook Islands
Miti‘aro Island   McCormack, Gerald (2013)
Cook Islands
Southern Cook Islands
Miti‘aro Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1985) (voucher ID: PTBG 41604)
Taxon name on voucher: Eleocharis geniculata
Cook Islands
Southern Cook Islands
Palmerston (Avarau) Island   McCormack, Gerald (2013)
Cook Islands
Southern Cook Islands
Rarotonga Island   McCormack, Gerald (2013)
Cook Islands
Southern Cook Islands
Rarotonga Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1982) (voucher ID: PTBG 41601)
Taxon name on voucher: Eleocharis geniculata
Ecuador (Galápagos Islands)
Isabela Group
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)
Federated States of Micronesia
Chuuk Islands
Fefan Island   Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
Federated States of Micronesia
Chuuk Islands
Losap Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Federated States of Micronesia
Chuuk Islands
Namonuito (Namonweito, Nómwun Wiité) Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Federated States of Micronesia
Chuuk Islands
Puluwat (Pwonowót) Atoll native
Manner, H. I./Mallon, E. (1989) (p. 37)
Vouchers cited: Manner & Mallon 139 (GUAM), Manner & Mallon 141 (GUAM)
Federated States of Micronesia
Chuuk Islands
Satawan Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Federated States of Micronesia
Pohnpei Islands
Pohnpei Island native
Herrera, Katherine/Lorence, David H./Flynn, Timothy/Balick, Michael J. (2010) (p. 42)
Vouchers cited: E. Albert 36b (NY, PTBG), S. Perman 21407 (PTBG), A. Rinehart LR25213 (BISH), L. Stemmerman 2973 (BISH)
Federated States of Micronesia
Pohnpei Islands
Pohnpei Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2002) (voucher ID: PTBG 41801)
Taxon name on voucher: Eleocharis geniculata
Federated States of Micronesia
Pohnpei Islands
Pohnpei Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2007) (voucher ID: PTBG 50089)
Taxon name on voucher: Eleocharis geniculata
Federated States of Micronesia
Yap Islands
Faraulep (Faraulap) Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Federated States of Micronesia
Yap Islands
Ulithi Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Federated States of Micronesia
Yap Islands
Woleai Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Federated States of Micronesia
Yap Islands
Yap (Waqab) Island native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Fiji
Fiji Islands
Kanathea Island introduced
invasive
Smith, Albert C. (1979) (p. 240)
Voucher cited: DA L.14761
Not common.
Fiji
Fiji Islands
Kandavu Island introduced
invasive
Smith, Albert C. (1979) (p. 240)
Voucher cited: DA 2996
Not common.
Fiji
Fiji Islands
Ngau Island introduced
invasive
Smith, Albert C. (1979) (p. 240)
Voucher cited: Milne 178
Not common.
Fiji
Fiji Islands
Ovalau Island introduced
invasive
Smith, Albert C. (1979) (p. 240)
Vouchers cited: DA 14512, Milne 223
Not common.
Fiji
Fiji Islands
Viti Levu Island introduced
invasive
Smith, Albert C. (1979) (p. 240)
Vouchers cited: Greenwood 925, DA 11863, MacGillivray 22
Not common.
French Polynesia
Clipperton Island
Clipperton (Arue, Avera) Island   Sachet, M.-H. (1962) (p. 92)
French Polynesia
Marquesas Islands
Nuku Hiva (Nukahiva) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice
French Polynesia
Society Islands
Huahine Island introduced
invasive
Welsh, S. L. (1998) (pp. 315-316)
Voucher cited: McKee 3111
French Polynesia
Society Islands
Huahine Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: J. Florence & R. Tahuaitu 11720 (PAP)
Adventice
French Polynesia
Society Islands
Maupiti (Maurua) Island   Fosberg, F. R. (1997) (p. 38)
French Polynesia
Society Islands
Moorea Island introduced
invasive
Welsh, S. L. (1998) (pp. 315-316)
Voucher cited: Florence 2148
French Polynesia
Society Islands
Moorea Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Vouchers cited: J. Florence 2131 (PAP), J. Florence 2148 (PAP), J. Florence 4799 (PAP)
Adventice
French Polynesia
Society Islands
Raiatea (Havai) Island introduced
invasive
Welsh, S. L. (1998) (pp. 315-316)
Vouchers cited: Moore 44, BRY 26481
French Polynesia
Society Islands
Raiatea (Havai) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Vouchers cited: J. Florence 3488 (PAP), P. Morat 7012 (PAP)
Adventice
French Polynesia
Society Islands
Taha‘a Island introduced
invasive
Welsh, S. L. (1998) (pp. 315-316)
Voucher cited: Fosberg 63495
French Polynesia
Society Islands
Taha‘a Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: J. Florence 5238 (PAP)
Adventice
French Polynesia
Society Islands
Tahiti Island introduced
invasive
Welsh, S. L. (1998) (pp. 315-316)
Voucher cited: Leland et al. 5
French Polynesia
Society Islands
Tahiti Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Vouchers cited: J. Florence 3971 (PAP), J. Florence 7862 (PAP), J. Florence , P. Birnbaum & M. Chaine 9858 (PAP)
Adventice
French Polynesia
Society Islands
Tahiti Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1981) (voucher ID: PTBG 38262)
Taxon name on voucher: Eleocharis geniculata (L.) Roem. & Schult.
French Polynesia
Society Islands
Tetiaroa Atoll introduced
invasive
Sachet, M.-H./Fosberg, F. R. (1983) (p. 38)
Vouchers cited: Fosberg & Sachet 54645 (US), Raynal 18016 (P), Fosberg 63772 (US)
French Polynesia
Society Islands
Tupai Island introduced
invasive
Welsh, S. L. (1998) (pp. 315-316)
Voucher cited: Grant 4834
French Polynesia
Society Islands
Tupai Island   Sachet, M.-H. (1983) (p. 14)
Voucher cited: Grant 4834 (BISH), Sachet 1985 (US)
French Polynesia
Tuamotu Archipelago
Makatea (Ma‘atea) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Adventice
French Polynesia
Tuamotu Archipelago
Niau Atoll introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: J. Florence 10131 (PAP)
Adventice
French Polynesia
Tuamotu Archipelago
Tikehau (Tikahau) Atoll introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: J. Florence 7029 (PAP)
Adventice
French Polynesia
Austral (Tubuai) Islands
Rapa Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: J. Florence 6263 (PAP)
Adventice
French Polynesia
Austral (Tubuai) Islands
Rapa Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2002) (voucher ID: PTBG 42097)
Taxon name on voucher: Eleocharis geniculata
French Polynesia
Austral (Tubuai) Islands
Rurutu Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Vouchers cited: J. Florence 5562 (PAP), J. Florence 5933 (PAP)
Adventice
Guam
Guam Island
Guam Island native
Stone, Benjamin C. (1970) (p. 171)
Vouchers cited: Stone 3868 (GUAM), Stone 4888 (GUAM)
Guam
Guam Island
Guam Island native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1402-1403)
State of Hawaii
Hawaiian Islands
Lāna‘i Island introduced
invasive
Imada, Clyde T./James, Shelly A./Kennedy, Barbara H. (2008) (pp. 12-13)
Voucher cited: C. Imada, S. James & P. Imada 2007-16 (BISH)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Oppenheimer, Hank L. (2003) (p. 10)
West Maui. Vouchers cited: Oppenheimer H40105 (BISH, PTBG), Oppenheimer H110152 (BISH, PTBG)
State of Hawaii
Hawaiian Islands
Moloka‘i Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1402-1403)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1402-1403)
Voucher cited: Forbes s.n. (BISH)
Kiribati
Tungaru (Gilbert) Islands
Butaritari Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Kiribati
Tungaru (Gilbert) Islands
Butaritari Atoll introduced
invasive
Space, James C./Imada, Clyde T. (2004) (p. 10)
Voucher specimens collected: Imada 2003-57 (BISH 697672), Imada 2003-58 (BISH 697673)
Kiribati
Tungaru (Gilbert) Islands
Butaritari Atoll   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1972) (voucher ID: PTBG 22988)
Taxon name on voucher: Eleocharis geniculata (L.) Roem. & Schult.
Kiribati
Tungaru (Gilbert) Islands
Maiana Atoll introduced
invasive
Space, James C./Imada, Clyde T. (2004) (p. 10)
Voucher: Imada 2003-107 (BISH 697718)
Kiribati
Tungaru (Gilbert) Islands
Marakei Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Kiribati
Tungaru (Gilbert) Islands
Onotoa Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Kiribati
Tungaru (Gilbert) Islands
Onotoa Atoll cultivated
Moul, Edwin T. (1957) (p. 9)
Vouchers cited: Moul 8159 (US), Moul 8337 (US), Moul 8210 (US)
Kiribati
Tungaru (Gilbert) Islands
Tarawa Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Kiribati
Tungaru (Gilbert) Islands
Tarawa Atoll introduced
invasive
Space, James C./Imada, Clyde T. (2004) (p. 10)
Voucher: Imada 2003-38 (BISH 697653)
Marshall Islands
Ralik Chain
Ebon (Epoon) Atoll native
Fosberg, F. Raymond (1990) (p. 23)
Marshall Islands
Ralik Chain
Jaluit (Jãlwõj) Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Marshall Islands
Ralik Chain
Jaluit (Jãlwõj) Atoll native
Fosberg, F. R./Sachet, M.-H. (1962) (p. 8)
Voucher cited: Fosberg 39466 (US)
Marshall Islands
Ralik Chain
Kili (Kõle) Atoll native
Vander Velde, Nancy/Vander Velde, Brian (2006) (p. 3)
"Rare; small patch near grassy area of wetland to the north, not too far from ocean road".
Marshall Islands
Ralik Chain
Kwajalein (Kuwajleen) Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Marshall Islands
Ralik Chain
Kwajalein (Kuwajleen) Atoll possibly native
Whistler, W. A./Steele, O. (1999) (p. 75)
Vouchers cited: Fosberg 41377, Whistler 11237
Marshall Islands
Ralik Chain
Kwajalein (Kuwajleen) Atoll   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1998) (voucher ID: PTBG 44973)
Taxon name on voucher: Eleocharis geniculata
Marshall Islands
Ratak Chain
Ailuk (Aelok) Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Marshall Islands
Ratak Chain
Ailuk (Aelok) Atoll introduced
invasive
Fosberg, F. R. (1955) (p. 5)
Voucher cited: Fosberg 33969 (US)
Marshall Islands
Ratak Chain
Arno Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Marshall Islands
Ratak Chain
Arno Atoll   Vander Velde, Nancy/Vander Velde, Brian (2009) (p. 4)
Voucher cited: Vander Velde 0629200903
Marshall Islands
Ratak Chain
Likiep Atoll native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Marshall Islands
Ratak Chain
Likiep Atoll introduced
invasive
Fosberg, F. R. (1955) (p. 5)
Voucher cited: Fosberg 33825 (US)
Marshall Islands
Ratak Chain
Majuro (Mãjro) Atoll native
Vander Velde, Nancy (2003) (p. 38)
Rare
Marshall Islands
Ratak Chain
Maloelap Atoll   Imada, Clyde (2006)
Marshall Islands
Ratak Chain
Mejit (Mãjej) Island native
Fosberg, F. Raymond (1990) (p. 23)
Marshall Islands
Ratak Chain
Mili (Mile) Atoll native
Vander Velde, Nancy/Vander Velde, Brian (2010) (p. A5)
Uncommon; few patches in ponds near homes part way down runway and in old bomb holes to the south of Mili. Voucher 0725201005 (BISH, GUAM, PTBG)
Marshall Islands
Ratak Chain
Wotje (Wõjjã) Atoll   Vander Velde, Nancy/Vander Velde, Brian (2009) (p. 1)
Voucher cited: Vander Velde 0513200910
Palau
Palau (Belau ) (main island group)
Angaur (Ngeaur) Island native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Palau
Palau (Belau ) (main island group)
Angaur (Ngeaur) Island   Beleu National Museum (Republic of Palau. Koror.) (1977) (voucher ID: BNM 914)
Taxon name on voucher: Eleocharis geniculata (L.) R. & S.
Palau
Palau (Belau ) (main island group)
Babeldaob Island native
Space, James C./Lorence, David H./LaRosa, Anne Marie (2009) (p. Field notes and voucher.)
Voucher: Lorence 9815 (PTBG, BNM)
Palau
Palau (Belau ) (main island group)
Babeldaob Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2008) (voucher ID: PTBG 108)
Taxon name on voucher: Eleocharis geniculata (L.) Roem. & Schult.
Palau
Palau (Belau ) (main island group)
Koror (Oreor) Island native
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 69)
Palau
Palau (Belau ) (main island group)
Koror (Oreor) Island   Beleu National Museum (Republic of Palau. Koror.) (1977) (voucher ID: BNM 10019)
Taxon name on voucher: Eleocharis geniculata (L.) DC.
Philippines
Philippine Islands
Philippine Islands   Hafliger, E. (1092) (p. 33)
Philippines
Philippine Islands
Philippine Islands native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Solomon Islands
Solomon Islands
Solomon Islands   Waterhouse, D. F. (1997) (p. 61)
Solomon Islands
Solomon Islands
Solomon Islands native
Hancock, I. R./Henderson, C. P. (1988) (p. 71)
Tonga
Ha‘apai Group
Kao Island native
Whistler, W. A. (1992) (p. 85)
Voucher cited: Yuncker 15974
Tonga
Ha‘apai Group
Kao Island   Yuncker, T. G. (1959) (p. 71)
Voucher cited: Yuncker 15974
Tuvalu
Tuvalu (Ellis) Islands
Tuvalu Islands   Unknown (year unknown)
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
National Herbarium of New South Wales (2013)
Southern Australia, Western Australia
Australia
Australia (continental)
New South Wales native
National Herbarium of New South Wales (2013)
Australia
Australia (continental)
Northern Territory native
National Herbarium of New South Wales (2013)
Australia
Australia (continental)
Queensland native
National Herbarium of New South Wales (2013)
Canada (British Colombia)
Province of British Columbia
Canada (British Columbia) native
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
China
China
China (People's Republic of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Shallow water margins at trail edges, sandy coastal habitats; near sea level. Fujian, Guangdong, Hainan.
China
China
Hong Kong native
Wu, Te-lin (2001) (p. 312)
In marshes, wet places and paddy fields.
Colombia
Colombia
Colombia (Republic of)   Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 138)
Costa Rica
Costa Rica
Costa Rica (Republic of)   Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 138)
Indonesia
Indonesia
Indonesia (Republic of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Japan
Ryukyu Islands
Ryukyu Islands native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Malaysia
Malaysia
Malaysia (country of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Mexico
Mexico
Mexico (United Mexican States)   Hafliger, E. (1092) (p. 33)
Singapore
Singapore
Singapore (Republic of) uncertain if introduced
invasive
Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 38)
Weed of uncertain origin
Taiwan
Taiwan Island
Taiwan Island native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Shallow water margins at trail edges, sandy coastal habitats; near sea level.
Thailand
Thailand
Thailand (Kingdom of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
United States (west coast)
United States (west coast states)
USA (California) native
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
Indian Ocean
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
British Indian Ocean Territory
Chagos Archipelago
Diego Garcia Island   Stoddart, D. R./Taylor, J. D., eds. (1971) (p. 147)
Voucher cited: Stoddart 800 (K, US)
British Indian Ocean Territory
Chagos Archipelago
Diego Garcia Island possibly introduced
invasive
Whistler, W. Arthur (1996) (p. 24)
British Indian Ocean Territory
Chagos Archipelago
Diego Garcia Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1995) (voucher ID: PTBG 44369)
Taxon name on voucher: Eleocharis geniculata
Also reported from
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Canada (except British Colombia)
Canada
Canada (country) native
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
Ontario
United States (continental except west coast)
United States (other states)
United States (other states) native
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
United States (continental except west coast)
United States (other states)
USA (Florida) native
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)


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This page was created on 18 DEC 2003 and was last updated on 16 OCT 2006.