Ngā Rauropi Whakaoranga

The hypotheses on distribution of sweet potato in the Pacific discussed. (Yen notes the oversight of botanical evidence). Agronomic characteristics discussed. The place of the sweet potato in agricultural systems in Asia, Melanesia, Polynesia and America. Taxonomy. Plant variation. Varieties. Propagation. Centre of origin in Oceania and transfers of plants within the region. The impact of sweet potato in New Zealand, Easter Island, Hawaii, New Guinea, Asia.