Pacific Island Ecosystems at Risk (PIER)

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Dichanthium aristatum
(Poir.) C.E.Hubb., Poaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Andropogon aristatus Poir.

Common name(s): [more details]

Chinese: mao geng shuang hua cao

English: Angleton bluestem, Angleton grass, awned dichanthium, bearded golden-beard, bluestem, Wilder grass

Spanish: hierba Angleton, puntero

Habit:  grass

Description:  "Perennials; culms 20-100 cm tall, geniculate at base, white-pubescent at nodes.  Sheaths glabrous, striate; ligule membranous, ca. 0.8 mm long; blades 3-25 cm long, 2-5 mm wide, scabrous on upper surface, sparsely pilose but becoming glabrous toward base.  Inflorescences composed of 1-6 subdigitate short-pedunculate racemes, peduncles and upper culm axis pubescent, racemes flexuous, 2-8 cm long; spikelets imbricate, with 1-6 smaller homogamous spikelet pairs at base of each raceme; sessile spikelet elliptic to obovate, 2-5 mm long, short-pilose at base, first glume chartaceous, convex, pilose below middle, upper part glabrous or short-ciliate along margins and near apex, apex broadly obtuse or subacute, second glume narrower than first glume, keeled, glabrous except margins pubescent, first lemma membranous, subequal to glumes, second lemma narrow, prolonged into a geniculate awn 10-20 mm long; pedicellate spikelet with glumes similar in shape and size to sessile spikelet, florets absent, awnless; palea absent.  Caryopsis greenish brown, lenticular, 2-2.5 mm long."  (Wagner et al., 1999; pp. 1528-1529, 1907).

Description from GrassBase.

Habitat/ecology:  In Hawai‘i, "naturalized in lawns, pastures, and grasslands, also common in frequently disturbed areas, 0-520 m" (Wagner et al., 1999; pp. 1528-1529).

Propagation:  Seed

Native range:  "India to southeastern Asia, widely naturalized in other tropical regions" (Wagner et al., 1999; pp. 1528-1529).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
French Polynesia
Society Islands
Tahiti Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: J. Florence 4480 (PAP)
Adventice
State of Hawaii
Hawaiian Islands
Kaho‘olawe Island introduced
invasive
Herbst, Derral R./Clayton, W. D. (1998) (p. 22)
Voucher cited: Wood et al. 1735 (BISH)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 1529)
State of Hawaii
Hawaiian Islands
Lāna‘i Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 1529)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 1529)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 1529)
Voucher cited: Forbes 1728.O (BISH)
Japan (offshore islands)
Ogasawara (Bonin) Islands
Bonin (Ogasawara) Islands introduced
Kato, Hidetoshi (2007)
New Caledonia
New Caledonia
New Caledonia Islands introduced
invasive
cultivated
Gargominy, Oliver/Bouchet, Philipe/Pascal, Michel/Jaffre, Tanguy/Tourneu, Jean-Christophe (1996) (p. 380)
Souvent en dehors des pâturages.
Papua New Guinea
Papua New Guinea (eastern New Guinea Island)
Papua New Guinea (eastern New Guinea Island) introduced
Henty, E. E. (1969) (p. 69)
Philippines
Philippine Islands
Philippine Islands   Hafliger, Ernst/Scholz, Hildemar (1980) (p. 40)
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)   Hafliger, Ernst/Scholz, Hildemar (1980) (p. 40)
China
China
China (People's Republic of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Hill slopes; 500-1500 m. Yunan.
Indonesia
Indonesia
Indonesia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Malaysia
Malaysia
Malaysia (country of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Taiwan
Taiwan Island
Taiwan Island native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Hill slopes; 500-1500 m.
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)
Mauritius Island   Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 125)


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This page was created on 23 APR 2005 and was last updated on 7 JUL 2012.