kāretu
1. (noun) scented holy grass, Hierochloe redolens - a sweet-scented grass found in wet grassland and scrub throughout Aotearoa/New Zealand. Grows in clumps less than 1 m tall, with flat, bright green blades on long stems.
Ka kohi i te hua o te miro hei hinu whakakakara, ka kohi i te moki, i te akerautangi, i te kāretu (W 1971:207). / Collect the fruit of the miro tree as scented oil, and collect the moki fern, the akeake and the scented holy grass.