Pacific Island Ecosystems at Risk (PIER)

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Panicum brevifolium
L., Poaceae
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Present on Pacific Islands?  no

Primarily a threat at high elevations?  no

Common name(s): [more details]

Chinese: duan ye shu

English: short-leaved panicum, shortleaf panic grass

Habit:  grass

Description:  "Creeping annual, rooting at the lower nodes; culms to 1 m or more long, the upper portions ascending and producing inflorescences, branched, the internodes much longer than the sheaths, slightly flattened, hollow, glabrous or with a line of pubescence, the nodes glabrous.  Sheaths rounded, glabrous, slightly auriculate, the auricle ciliate, one margin ciliate, the other hyaline, the collar glabrous; ligule a ciliolate membrane, puberulent on the back, 0.2-0.8 mm long; blades 1.5-8.0 cm long, 5-25 mm wide, ovate to ovate-lanceolate, flat, glabrous to sparsely pubescent, usually sparsely pilose behind the ligule, cordate-clasping at the base, acuminate, the basal lobes usually prominently ciliate.  Panicle 3-17 cm long, the branches spreading, the rhachis and major branches usually pilose, glandular, the pedicels glabrous, spreading.  Spikelets 1.5-1.9 mm long, 0.6-0.8 mm wide, somewhat laterally compressed, plano-convex and somewhat gibbous in lateral view, pubescent, varying from puberulent to conspicuously papillose-hirsute, often both forms in the same inflorescence with the heavily pubescent spikelets towards the outside of the panicle, rarely completely glabrous, green or flushed with purple, acute; lower glume as long as the spikelet or slightly shorter, narrow, lanceolate, acute to subobtuse, 1-3-nerved; rhacilla internode noticeably enlarged and thickened between the glumes; upper glume as long as the spikelet, strongly 5-nerved; lower floret usually staminate, sometimes sterile, the lemma 5-nerved, as long as the spikelet, the palea slightly shorter than the lemma; upper floret 1.0-1.5 mm long, 0.6-0.8 mm wide, ovate to broadly elliptic, minutely punctate, acute; anthers 1.0-1.4 mm long, yellow; caryopsis c. 0.8 mm long and 0.6 mm wide" (Dassanayake, 1994; pp. 333-334).

Description from GrassBase.

Habitat/ecology:  In Sri Lanka, "common in shade along forest edges, embankments, river banks, and in secondary vegetation at elevations from sea level to 1300 m" (Dassanayake, 1994; pp. 333-334).

Propagation:  Seed

Native range:  Tropical Africa and Asia (Dassanayake, 1994; pp. 333-334).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
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
China
China
China (People's Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
China
China
Hong Kong native
Wu, Te-lin (2001) (p. 341)
In wet places.
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
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Thailand
Thailand
Thailand (Kingdom 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
Seychelles
Seychelles Islands
Frégate Island   Robertson, S. A./Todd, D. M. (1983) (p. 58)
Voucher cited: Robertson 2640


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This page was created on 30 MAY 2005 and was last updated on 30 NOV 2008.