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Oplismenus compositus

Ko‘eko‘e (MT)

Large Oplismenus-Grass

Multimedia & Additional Resources

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General Information

COMMON NAMES: Large Oplismenus-Grass

GLOBAL DISTRIBUTION: NATIVE pantropical

COOK ISLANDS STATUS: Introduced - Polynesian, Naturalised; Land, lowlands - mountains (++); open-forest

KEY FEATURES: Unbranched grass to 70cm high. STEM rooting at nodes, then ascending to 70cm; nodes 2-5cm apart. LEAVES clasping 2(-4)cm with hairy margin; BLADE flat, wavy, short, to 90x15mm, finely serrated on edges and on veins, base asymmetrical, tip sharp; ligule 1mm with long hairs. FLOWERS stalk to 30cm, with 5-10 laterals to 2cm, decreeing distally; laterals with up to 25 ventral paired-flowers in two rows; flowers with a 1cm spike.

SIMILAR SPECIES: See Oplismenus hirtellus.

Enlarged Image of 'Oplismenus compositus'

Cook Islands Distribution

View Distribution Map

Southern Group: Present Makatea: Present
RR	MG	AT	MK	MT	AK	PL	TK	MN
++	P		++	P		-		-

Northern Group:
TN	MH	RK	PK	NS	SW
-	-	-	-	-	-

Key to Symbols

blank	no data
-	absent	L	localised
X	extinct 'naturally'	W	widespread
XQi	quarantine intercepted	R	recent
XQe	eradicated	?	query preceding category
P	present	T?	taxonomic query
S	seasonal	nn	present, said to have no name
O	occasional	?1	present, name not investigated
++++	very common	?2	presence not verified, no name recorded
+++	common	N/A	absent, name not expected
++	uncommon
+	rare
Cook Islands islands: RR =Rarotonga, MG = Mangaia, AT =‘Ātiu, MK=Ma‘uke, MT=Miti‘āro, AK=Aitutaki, PL=Palmerston, PN=Penrhyn, MN=Manuae, TK=Takūtea, TN=Tongareva (TS=Tongaleva Spoken, TW=Tongareva Written, they say "el" but write "r"), MH=Manihiki, RK=Rakahanga, PK=Pukapuka, NS=Nassau, SW=Suwarrow. After a Polynesian name: ^=orthography query. Countries and other: FIJ=Fiji, WT=Wallis & Futuna, SAM=Samoa, TON=Tonga, NIU=Niue, CK=Cook Islands, CKM=Cook Islands Māori, FP=French Polynesia, AUS=Australs, SOC=Societies, TAH=Tahiti, TUA=Tuamotus, MQS=Marquesas, MNG=Mangareva, PIT=Pitcain group, EAS=Easter Island, HAW=Hawai‘i, NZ=New Zealand, NZM=New Zealand Māori

Scientific Taxonomy

Oplismenus compositus Linnaeus
SYNONYMS: Panicum compositus

TAXONOMY: PLANTAE; ANTHOPHYTA (=Angiospermae); LILIOPSIDA (=Monocotyledones); COMMELINIDAE; Cyperales; POACEAE

Vouchers & References

Vouchers:
None Recorded.

References:
p.1563 Wagner et al.- Flowering Plants of Hawaii
p.1/343 A.C.Smith - Flora Vitiensis Nova
p.303 I Cheeseman - Flora of Rarotonga
p.19 ? Wilder - Flora of Rarotonga
p.370b Whistler - Ethnobotany of the Cook Islands

Data Update History (information):
zTX, zB02, zM02, zD06a

Web Resources

Citation Information

McCormack, Gerald (2007) Cook Islands Biodiversity Database, Version 2007.2. Cook Islands Natural Heritage Trust, Rarotonga. Online at http://cookislands.bishopmuseum.org.
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