Bothriochloa decipiens (Hack.) C. E. Hubb., Poaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

English: pitted bluegrass

Habit:  grass

Description:  "Tufted, erect, up to 2 m tall; culms unbranched or branched, nodes glabrous.  Leaf sheaths glabrous or with few tubercular-based hairs; ligules ca 0.75-1.5 long; leaf blades linear, apex attenuate, up to ca 35 cm x 0.2-0.6 cm, glabrous or with sparse tubercular-based hairs.  Racemes 3-5, subdigitate, 2-7 cm long, joints and pedicels with long brownish white hairs; sessile spikelet ca 5 mm long with densely bearded callus at base, lower glume as long as spikelet, pilose on back in lower part, scabrid on nerves, usually pitted above middle, upper glume ca as long as spikelet, lower floret with lemma ca 3/5 as long as spikelet, upper floret with lemma ca 2 mm long, with geniculate awn ca 1.5-2.2 cm long, palea absent; pedicellate spikelet reduced to lower glume, 2.5-4 mm long" (Stanley & Ross, 1989; vol. 3, pp. 256-257).

Description from GrassBase.

Habitat/ecology:  In New Caledonia, "commun en végétation secondaire" (MacKee, 1994; p. 57).

Propagation:  Seed

Native range:  Australia (Global Compendium of Weeds).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
New Caledonia New Caledonia	New Caledonia Islands	introduced invasive	Gargominy, Oliver/Bouchet, Philipe/Pascal, Michel/Jaffre, Tanguy/Tourneu, Jean-Christophe (1996) (p. 380) Commune en formations secondaires.
New Caledonia New Caledonia	New Caledonia Islands	introduced invasive	MacKee, H. S. (1994) (p. 57) Voucher cited: Sarlin 27 s.loc.

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)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 51)

Additional information:
Additional online information about Bothriochloa decipiens is available from the Hawaiian Ecosystems at Risk project (HEAR).

Information about Bothriochloa decipiens as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).

Taxonomic information about Bothriochloa decipiens may be available from the Germplasm Resources Information Network (GRIN).

References:

Gargominy, Oliver/Bouchet, Philipe/Pascal, Michel/Jaffre, Tanguy/Tourneu, Jean-Christophe. 1996. Conséquences des introductions d'espèces animales et végétales sur la biodiversité en Nouvelle-Calédonie. Rev. Ecol. (Terre Vie) 51:375-401.

Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. 1979. A geographical atlas of world weeds. John Wiley & Sons, New York. 391 pp.

MacKee, H. S. 1994. Catalogue des plantes introduites et cultivées en Nouvelle-Calédonie. Muséum National d'Histoire Naturelle, Paris, 164 p.

Randall, Rod. 2002. A global compendium of weeds. RG and FJ Richardson. 906 pp.

Stanley, T. D./Ross, E. M. 1989. Flora of south-eastern Queensland. Queensland Department of Primary Industries, Misc. Pub. 81020. 3 Volumes.