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Cyperus rotundus

Mauku ‘Ōniāni

Nut Sedge

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General Information

COMMON NAMES: Nut Sedge, Nut Grass

TRADITIONAL NAMES: Mauku ‘Ōniāni (RR MG MK), Matie ‘Ōniāni (AT), ‘Ōniāni Tītā (MT), ‘Ōniāni Lau (TS), ‘Ōniāni Rau (TW); Other Polynesian - Mumuta (SAM)

GLOBAL DISTRIBUTION: NATIVE Cosmopolitan

COOK ISLANDS STATUS: Introduced - Recent, Naturalised; Land, lowlands

SIGNIFICANCE LIST: ; Weed - moderate

Cook Islands Distribution

View Distribution Map

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

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

Cyperus rotundus Linnaeus
TAXONOMY: PLANTAE; ANTHOPHYTA (=Angiospermae); LILIOPSIDA (=Monocotyledones); COMMELINIDAE; Cyperales; CYPERACEAE

More Information

SIGNIFICANCE NOTES -
NEGATIVE SIGNIFICANCE: Weed - moderate. Comments: NBSAP - Mitiaro (2 of 10 weeds), NBSAP - Atiu (1 of 3 Dom. weeds)

Vouchers & References

Vouchers:
None Recorded.

References:
p.1399 Wagner et al.- Flowering Plants of Hawaii
p.84 Neal - In Gardens of Hawaii
p.1/249 A.C.Smith - Flora Vitiensis Nova
p.301 I Cheeseman - Flora of Rarotonga
p.22 R Wilder - Flora of Rarotonga
p.378e Whistler - Ethnobotany of the Cook Islands

Data Update History (information):
zB02

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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