Botanical name: Arthropodium cirratum
Common names: Renga Lily, Rock-lily
Family: Asparagaceae (Formerly:Laxmanniaceae)
Subfamily: Lomandroideae
Origin: New Zealand
USDA Plant Hardiness Zone Map
It is evergreen with small white flowers in early summer. This plant was possibly formerly cultivated for its edible root by the Maoris, the root grows larger under cultivation.
Link to this plant:
https://toptropicals.com/catalog/uid/arthropodium_cirratum.htm