Pacific Island Ecosystems at Risk (PIER)

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Chloris divaricata
R.Br., Poaceae
No images for this taxon


Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

English: Australian Rhodes grass, slender chloris, small chloris, spreading windmill grass, star grass, star windmill grass

Habit:  grass

Description:  "Branched perennials with slender, creeping stolons; culms erect or sometimes prostrate, 20-40 cm tall, glabrous.  Sheaths shorter than the internodes, usually somewhat keeled, often slightly inflated, glabrous, margins sometimes scarious; ligule a row of hairs ca. 0.5 mm long; blades flat or involute, 4-20 cm long, 1-2 mm wide, upper surface scabrous.  Inflorescences consisting of 4-7 spikes, each one 4-20 cm long, digitately arranged at apex of rachis, spreading, slender; spikelets 2-flowered, 3-4 mm long (excluding awns), closely appressed to rachis; glumes narrow, with 1 scabrous nerve, acuminate, first glume 1.5-2 mm long, second glume ca. 3 mm long; first lemma subcoriaceous, 3-3.5 mm long; narrow, scaberulous and ciliate in upper part, attenuate, awn 5-6 mm long; first palea ca. 2 mm long, narrow, scabrous on keels; rudimentary lemma narrow, ca. 1.5 mm long, acute, bifid, awn 1.5-2 mm long, narrow, triangular, attenuate at both ends."  (Wagner et al., 1999; pp. 1514-1515).

Description from GrassBase.

Habitat/ecology:  In Hawai‘i, "naturalized and common in lawns and dry, disturbed areas such as along roadsides and in pastures, 0-440 m". (Wagner et al., 1999; pp. 1514-1515).  In Fiji, "naturalized and widespread from sea level to about 30m but is nowhere common, occurring in dry hills, along roadsides, and as a weed of cultivation and lawns" (Smith, 1979; p. 312).   In Tonga, "occasional in disturbed places" (Whistler, 1988; p. 48).

Propagation:  Seed

Native range:  New Caledonia and Australia (Wagner et al., 1999; pp. 1514-1515).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Cook Islands
Cook Islands
Cook Islands   McCormack, Gerald (2013)
Fiji
Fiji Islands
Kandavu Island introduced
invasive
Smith, Albert C. (1979) (p. 312)
var. cynodontoides Voucher cited: C.R. Turbet 8
Fiji
Fiji Islands
Viti Levu Island introduced
invasive
Smith, Albert C. (1979) (p. 312)
var. cynodontoides Vouchers cited: Greenwood 226A, 226C; DA 9117; C.R. Turbet 44, DA 8479, DA 16038, DA 3658, DA 763
State of Hawaii
Hawaiian Islands
Kaho‘olawe Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1514-1515)
Vouchers cited: var. cynodontoides: Wilder s .n. (BISH); var. divaricata: Munro s n. (BISH)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1514-1515)
var. cynodontoides
State of Hawaii
Hawaiian Islands
Lāna‘i Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1514-1515)
var. divaricata. Voucher cited: Munro s n. (BISH)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1514-1515)
var. divaricata
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Oppenheimer, Hank L. (2003) (p. 20)
var. cynodontoides. West Maui. Voucher cited: Oppenheimer H110101 (BISH, PTBG)
State of Hawaii
Hawaiian Islands
Ni‘ihau Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1514-1515)
var. divaricata
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1514-1515)
var. cynodontoides. Voucher cited: Wilder s .n. (BISH);
New Caledonia
New Caledonia
New Caledonia Islands native
Smith, Albert C. (1979) (p. 312)
New Caledonia
New Caledonia
New Caledonia Islands native
Jaffré, T./Morat, P./Veillon, J-M./Rigault, F./Dagostini, G. (2001) (p. 45)
var. cynodontoides
Tonga
Tongatapu Group
Tongatapu Island   Whistler, W. A. (1988) (p. 48)
United States (other Pacific offshore islands)
Midway Atoll
Midway Atoll introduced
invasive
Starr, Forest/Martz, Kim (2000) (p. 11)
Voucher cited: Starr & Martz 990508-1 (BISH)
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)
New South Wales native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Australia
Australia (continental)
Queensland native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Japan
Japan
Japan (country) introduced
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 192)
Taiwan
Taiwan Island
Taiwan Island introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized


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This page was created on 2 AUG 2002 and was last updated on 30 NOV 2008.