Whistler, W. A. (1988). Checklist of the Weed Flora of Western Polynesia. An annotated list of the weed species of Samoa, Tonga, Niue, and Wallis and Futuna, along with the earliest dates of collection and the local names. South Pacific Commission, Technical Paper N°194, Noumea, 69 p.

Whistler, W. A. (1988). Checklist of the Weed Flora of Western Polynesia. An annotated list of the weed species of Samoa, Tonga, Niue, and Wallis and Futuna, along with the earliest dates of collection and the local names. South Pacific Commission, Technical Paper N°194, Noumea, 69 p.