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Bidens pilosa

Piripiri Kerekere

Beggar's-tick

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General Information

COMMON NAMES: Beggar's-tick, Spanish Needles, Cobbler's Pegs

TRADITIONAL NAMES: Piripiri (RR MG AT MK MT PL RK), Piripiri Nīroa (AK), Pilipili (PK)

GLOBAL DISTRIBUTION: NATIVE sw.USA - Mexico - C.America

COOK ISLANDS STATUS: Introduced - Recent, Naturalised; Land, lowlands - mountains (++++)

SIGNIFICANCE LIST: Medicine; Invasive - moderate, Weed - serious

Cook Islands Distribution

View Distribution Map

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

Northern Group: Present
TN	MH	RK	PK	NS	SW
-	P	++?	++	-	-

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

Bidens pilosa Linnaeus
TAXONOMY: PLANTAE; ANTHOPHYTA (=Angiospermae); MAGNOLIOPSIDA (=Dicotyledones); ASTERIDAE; Asterales; ASTERACEAE

More Information

SIGNIFICANCE NOTES -
POSITIVE SIGNIFICANCE: Medicine
NEGATIVE SIGNIFICANCE: Invasive - moderate, Weed - serious. Comments: NBSAP - Te Au-o-Tonga (4 of 9 weeds), NBSAP - Aitutaki (6 of 10 weeds), NBSAP - Mitiaro (5 of 10 weeds)

Vouchers & References

Vouchers:
Pukapuka: fieldspecimen, 2/2004, G.McCormack with ID as Bidens pilosa.

References:
p.279 Wagner et al.- Flowering Plants of Hawaii
p.844 Neal - In Gardens of Hawaii
p.162 Hortus 3rd
p.5/281 A.C.Smith - Flora Vitiensis Nova
p.285 I? Cheeseman - Flora of Rarotonga
p.104 Wilder - Flora of Rarotonga
p.390f Whistler - Ethnobotany of the Cook Islands

Data Update History (information):
zTX, zB02, zM02, zupM03a

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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