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Sagittaria sagittifolia leucopetala

Arrowhead

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Image:	Leaves and flowers	52KB

General Information

COMMON NAMES: Arrowhead, Duck Potato

GLOBAL DISTRIBUTION: NATIVE s.Asia - Indonesia (our subspecies)

COOK ISLANDS STATUS: Introduced - Recent, Naturalised; Freshwater, wetlands - ponds

KEY FEATURES: Erect herb to 1m. ROOT small yellow tuber (edible). LEAVES ribbonlike (submerged), oval (floating) and arrowlike with long basal lobes (erect above the water), the latter to 25x20cm, stalk 80cm. FLOWERS on 1m stalk; unisexual; petals white and anthers yellow; 2.5cmØ.

Enlarged Image of 'Sagittaria sagittifolia leucopetala'

Cook Islands Distribution

View Distribution Map

Southern Group: Present Makatea:
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

Sagittaria sagittifolia leucopetala (Miq.)
SYNONYMS: Sagittaria sagittifolia

TAXONOMY: PLANTAE; ANTHOPHYTA (=Angiospermae); LILIOPSIDA (=Monocotyledones); ALISMATIDAE; Alismatales; ALISMATACEAE

Vouchers & References

Vouchers:
None Recorded.

References:
p.1355 Wagner et al.- Flowering Plants of Hawaii
p.56 Neal - In Gardens of Hawaii
p.1023 Royal Hort. Soc. Index of Garden Plants
p.70 Tropica
p.1/124 A.C.Smith - Flora Vitiensis Nova
p.16 R Wilder - Flora of Rarotonga

Data Update History (information):
zTX, zB02, zM02, zD02

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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