Pacific Island Ecosystems at Risk (PIER)

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Kyllinga melanosperma
Nees, Cyperaceae
No images for this taxon


Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Cyperus melanospermus (Nees) J. V. Suringar

Common name(s): [more details]

Chinese: hei zi shui wu gong

Fijian: tanivori

Habit:  sedge

Description:  "Rhizome horizontal, lignescent, covered with dark brown scales; culms close together, arranged in a row along the rhizome, 30-100 cm tall, 2.5-4 mm thick, clothed at base with purple-brown sheaths; leaves mostly reduced to bladeless sheaths 2-5 cm long, the uppermost 1 or 2 sometimes developing a short blade about 3 mm broad; inflorescence a single terminal greenish spike, ovoid to subglobose, 6-12 mm long, 6-8 mm across; leafy bracts usually 3, patent; spikelets many, densely disposed, narrowly elliptic, about 3 mm long, 1- or 2-flowerd; glumes lance-ovate, pale straw-colored, often tinged with brown, 3-nerved, often spinulose on the acute keel, mucronate at apex; stamens 3; achene 1/2-1/3 as long as the subtending glume, oblong, lenticular, maturing blackish; style long, 2-fid at apex" (Smith, 1979; p. 260).

Habitat/ecology:  In China (native), "places along trails, water margins, sandy areas; below 100-1000 m" (Flora of China online).  In Fiji, "a naturalized adventive occurring sparingly in southern Viti Levu from near sea level to 460 m, in open swampy places along forest streams, on river banks, in forest clearings, and occasionally along roadsides" (Smith, 1979; p. 260).

Propagation:  Seed

Native range:  "Tropical Africa, southern and southeastern Asia, and eastward to Melanesia" (Smith, 1979; p. 260).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Fiji
Fiji Islands
Viti Levu Island introduced
invasive
Smith, Albert C. (1979) (p. 260)
Vouchers cited: Degener 15181, DA 8640, DA 9197 (McKee 2760), Smith 8570, DA 1401, DA 1445
New Caledonia
New Caledonia
New Caledonia Islands   Swarbrick, John T. (1997) (p. 93)
New Caledonia
New Caledonia Archipelago
Île Grande Terre introduced
invasive
Tassin, Jacques (2005)
Papua New Guinea
Papua New Guinea (eastern New Guinea Island)
Papua New Guinea (eastern New Guinea Island) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Philippines
Philippine Islands
Philippine Islands native
U.S. Dept. Agr., Agr. Res. Serv. (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)
Queensland 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 along trails, water margins, sandy areas; below 100-1000 m. Guangdong, S Guangxi, Hainan, Yunnan.
Indonesia
Indonesia
Indonesia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Celebes, Java, Lesser Sunda Islands, Sumatra
Indonesia
Indonesia
West Papua Province (Indonesia) (western New Guinea Island) (formerly Irian Jaya) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Malaysia
Malaysia
Malaysia (country of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Malaya
Singapore
Singapore
Singapore (Republic of) uncertain if introduced
invasive
Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 53)
Weed of uncertain origin
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
Comoros
Comoro Islands
Comoro Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Seychelles
Seychelles Islands
Seychelles Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)


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This page was created on 17 AUG 2002 and was last updated on 14 MAR 2012.