In Māori mythology, Rongo or Rongo-mā-Tāne (also Rongo-hīrea, Rongo-marae-roa, and Rongo-marae-roa-a-Rangi) is a major god (atua) of cultivated plants, especially kumara (spelled kūmara in Māori), a vital crop. Other crops cultivated by Māori in traditional times included taro, yams (uwhi), cordyline (tī), and gourds (hue). Because of their tropical origin, most of these crops were difficult to grow except in the far north of the North Island, hence the importance of Rongo in New Zealand.