Cook Islands Biodiversity & Natural Heritage
 

Portulaca lutea

Pōkea Muramura (MT)

Pacific Pigweed

Multimedia & Additional Resources

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General Information

COMMON NAMES: Pacific Pigweed

TRADITIONAL NAMES: Pōkea ? (RR), Pōkea (AT MK AK), Pōkea Muramura (MT), Kātuli (TS), Kāturi (TW)

GLOBAL DISTRIBUTION: NATIVE Micronesia - New Caledonia - Pitcairn

COOK ISLANDS STATUS: Native; Land, lowlands, on coral sands

SIGNIFICANCE LIST: Food (former Leaf and Root), Medicine

KEY FEATURES: Weakly upright fleshy herb to 30cm. Stem red; leaves oval to 25x15mm. Flowers 1-3 in cluster; yellow; 20mmØ; petals 5 wide-obovate; stamens 20-50. The similar Weedy Pigweed is creeping and has only 7-15 stamens.

SIMILAR SPECIES: Weedy Pigweed (Portulaca oleracea) has stamens 7-15 (vs 20-50) and fruit 4mm (vs. 7mm).. NOTE: Root and leaves used as food in ancient times.

Enlarged Image of 'Portulaca lutea'

Cook Islands Distribution

View Distribution Map View Distribution Map

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

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

Key to Symbols

Scientific Taxonomy

Portulaca lutea Sol. ex G.Forster
SYNONYMS: Portulaca johnii

TAXONOMY: PLANTAE; ANTHOPHYTA (=Angiospermae); MAGNOLIOPSIDA (=Dicotyledones); CARYOPHYLLIDAE; Caryophyllales; PORTULACACEAE

More Information

IDENTIFICATION: Weakly upright herb, to 30cm. ROOT an edible tuber. STEM fleshy ± red. LEAVES alternate, fleshy, oval to wide-oval, to 25x15mm. FLOWERS 1-3, yellow; petals 5, obovate to 12mm long, stamens 20-50. FRUIT ovoid, 7mm long; tip opens to release tiny black seeds.

Vouchers & References

Vouchers:
None Recorded.

References:
p.1071 Wagner et al.- Flowering Plants of Hawaii
p.342 Neal - In Gardens of Hawaii
p.2/276 A.C.Smith - Flora Vitiensis Nova
p.273 I Cheeseman - Flora of Rarotonga
p.49 Wilder - Flora of Rarotonga
p.392d Whistler - Ethnobotany of the Cook Islands

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. Copy citation to system clipboard
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