Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Panicum flavidum Retz.; Paspalidium flavidum (Retz.) A. Camus

Common name(s): [more details]

Chinese: lei que bai

Habit:  grass

Description:  "Habit: Perennial; caespitose. Culms erect, or geniculately ascending; 30-100 cm long. Culm-nodes glabrous. Ligule a fringe of hairs. Leaf-blades 5-20 cm long; 4-8 mm wide. Inflorescence composed of racemes. Racemes 4-9; borne along a central axis; distant; appressed; unilateral; 1-3 cm long. Central inflorescence axis 15-30 cm long. Rhachis narrowly winged; angular; terminating in a barren extension; extension flattened. Spikelet packing abaxial; crowded; regular; 2 -rowed. Spikelets spreading; solitary. Fertile spikelets sessile. Fertile spikelets: Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; laterally compressed; gibbous; acute; 2.5-3 mm long; falling entire. Glumes similar; shorter than spikelet; thinner than fertile lemma. Lower glume orbicular; 0.33-0.66 times length of spikelet; membranous; without keels; 3 -veined. Lower glume apex obtuse. Upper glume orbicular; 0.66-0.75 times length of spikelet; cartilaginous; without keels; 7 -veined. Upper glume apex obtuse. Florets: Basal sterile florets male; with palea. Lemma of lower sterile floret ovate; 1 times length of spikelet; cartilaginous; 5 -veined; obtuse. Fertile lemma ovate; laterally compressed; gibbous; 2.5-3 mm long; indurate; without keel. Lemma surface granulose and striate. Lemma margins involute. Lemma apex acute. Palea reflexed at apex; indurate. Flower: Anthers 3; 2-2.2 mm long"  (GrassBase).

Habitat/ecology:  In China (native), "roadsides, field edges, moist open places; 100-1500 m"  (Flora of China online).

Propagation:  Seed

Native range:  Mauritius; Reunion, China, southern and southeastern Asia, Australia (Queensland) and the Solomon Islands (GRIN).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Federated States of Micronesia Chuuk Islands	Weno (Moen) Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 53)
Guam Guam Island	Guam Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 53)
Philippines Philippine Islands	Philippine Islands	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Solomon Islands Solomon Islands	Solomon Islands	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)

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. (2011)
Cambodia Cambodia	Cambodia (Kingdom of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
China China	China (People's Republic of)	native	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2011) As Paspalidium flavidum (Retzius) A. Camus. Guangdong, Guizhou, Hainan, Yunnan.
Indonesia Indonesia	Indonesia (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Malaysia Malaysia	Malaysia (country of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Taiwan Taiwan	Taiwan Island	native	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2011) As Paspalidium flavidum (Retzius) A. Camus
Thailand Thailand	Thailand (Kingdom of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Vietnam Vietnam	Vietnam (Socialist Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)

Indian Ocean
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
La Réunion (France) La Réunion Island	La Réunion Island	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)
Mauritius Mautitius Islands (Mauritius and Rodrigues)	Mauritius Island	native	U.S. Dept. Agr., Agr. Res. Serv. (2011)

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

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

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

References:

Clayton, W.D./Harman, K.T./Williamson, H. 2011. World Grass Species: Descriptions, Identification, and Information Retrieval [GrassBase - The Online World Grass Flora]. The Board of Trustees, Royal Botanic Gardens, Kew.

Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce. 1987. A geographical checklist of the Micronesian monocotyledonae. Micronesica 20:1-126.

U.S. Dept. Agr., Agr. Res. Serv. 2011. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.

Zhengyi, Wu/Raven, Peter H./Deyuan, Hong. 2011. Flora of China (online resource).