- Arthropodium cirratum
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Arthropodium cirratum 
Scientific classification 
Kingdom: Plantae clade: Angiosperms clade: Monocots Order: Asparagales Family: Asparagaceae Subfamily: Lomandroideae Genus: Arthropodium Species: A. cirratum Binomial name Arthropodium cirratum Arthropodium cirratum (rengarenga, renga lily, New Zealand rock lily, or maikaika) is a species of herbaceous perennial plants 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.
An attractive lily, with leaves 30–60 cm by 3–10 cm, the flower stalk often reaches one metre, and bears many white six-petalled flowers, in groups of two or three, each about 2 cm across. The stamens are tricoloured - purple and white, with yellow at the curled end. The roots are 2–3 cm wide. Often grown as an ornamental, but occurs naturally north of Greymouth and Kaikoura near the sea and, as the name suggests usually on rocks. The rhizomes are edible when cooked and can be found throughout the year.
Rengarenga flower
The rhizomes were once eaten by the Māori after being cooked by hangi. 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.
References
- Crowe, Andrew. A Field Guide to the Native Edible Plants of New Zealand. 2004. Penguin Books. Penguin Group (NZ) cnr Airborne and Rosedale Roads, Albany, Auckland 1310, New Zealand
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