Arthropodium cirratum

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Arthropodium cirratum (rengarenga, renga lily, New Zealand rock lily, rengarenga, or maikaika) is a species of herbaceous perennial plant, endemic to New Zealand, where it may once have been farmed. It is used for medicine as well as food, and has symbolic importance in traditional Māori culture.[4]

Arthropodium cirratum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Asparagaceae
Subfamily: Lomandroideae
Genus: Arthropodium
Species:
A. cirratum
Binomial name
Arthropodium cirratum
Synonyms[3]

Anthericum cirratum G.Forst.
Anthericum latifolium Banks & Sol. ex Kunth

The Māori name rengarenga is a reduplication of Proto-Polynesian *renga which in other related languages corresponds to turmeric, especially its powdered form (see Samoan: lega, Hawaiian: lena); this association is due to both plants' similar stem and root characteristics.[5]

Description

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The leaves are 30–60 cm (12–24 in) long and 3–10 cm (1.2–3.9 in) wide.[6] The flower stalk often reaches one metre, and bears many white six-petalled flowers, in groups of two or three, each about 2 cm (0.8 in) across. The stamens are tricoloured - purple and white, with yellow at the curled end. The roots are 2–3 cm (0.8–1.2 in) wide.

 
Rengarenga flower
 
Rengarenga leaves

Taxonomy

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It was first described in 1786 as Anthericum cirrhatum by Georg Forster.[7] In 1822, Robert Brown assigned it to the genus, Arthropodium, resulting in the name, Arthropodium cirrhatum (now A. cirratum.)[1][2]

Distribution and habitat

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It occurs naturally north of Greymouth and Kaikōura near the sea and, as the name suggests, usually on rocks.[4]

Cultivation and uses

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It is often grown as an ornamental plant. The rhizomes are edible when cooked and can be found throughout the year. The rhizomes were once eaten by the Māori after being cooked in a hāngī. William Colenso believed, for two reasons, that this plant was once cultivated by them: firstly, the plant grows much larger under cultivation than it usually does in the wild; and secondly it was often found near old deserted Māori homes and plantations. However, he lists it as only fourteenth in importance, in his list of eighteen kinds of wild vegetable food used by the Māori.[4]

References

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  1. ^ a b "Arthropodium cirratum". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew; Harvard University Herbaria & Libraries; Australian National Botanic Gardens.
  2. ^ a b Brown, R. (1822) Bot. Mag. 49: t. 2350
  3. ^ "Anthericum latifolium Banks & Sol. ex Kunth. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 24 November 2019.
  4. ^ a b c Crowe, A. (2004). A Field Guide to the Native Edible Plants of New Zealand. Penguin Books. Penguin Group (NZ) cnr Airborne and Rosedale Roads, Albany, Auckland 1310, New Zealand.
  5. ^ "Rengarenga". Te Māra Reo. Benson Family Trust. 2022. Retrieved 30 October 2022.
  6. ^ Lehnebach, Carlos A.; Meudt, Heidi (1 October 2022). Native Plants of Aotearoa. Te Papa Te Taiao Nature Series. Te Papa Press. p. 23. ISBN 978-1-9911509-3-6.
  7. ^ Forster, G. (1786) Florulae Insularum Australium Prodromus n. 148