References
- Atherton J, McKenna SA, Wheatley A. 2014. Rapid biodiversity assessment of the Vavaʻu archipelago, Kingdom of Tonga. Apia, Samoa: SPREP.
- Clayton WD, Snow N. 2010. A key to Pacific grasses. Royal Botanic Gardens, Kew: Kew Publishing.
- Conn BJ, Richards PG. 1994. A new species of Oxalis section Corniculatae (Oxalidaceae) from Australasia. Australian Systematic Botany. 7:171–181. doi: 10.1071/SB9940171.
- Cribb PJ, Whistler WA. 2011. The orchids of Tonga, Niue, and the Cook Islands. Lankesteriana International Journal on Orchidology. 11:99–177.
- Fall PL, Drezner TD. 2019. Vascular plant species of the Kingdom of Tonga by vegetation type, species origin, growth form, and dispersal mechanism. Ecology. 101:e02902.
- Park G, Whistler A. 2001. The terrestrial ecology and botany of Tofua and Koa Islands in Haʻapai, Kingdom of Tonga. Report of the Botanical Survey of the Haʻapai Conservation Area Project of the South Pacific Biodiversity Conservation Programme, Apia, Samoa.
- PIER. 2024. Pacific Island ecosystems at risk. US Forest Service; [accessed 2024 Feb 15]. http://www.hear.org/pier/.
- Smissen RD, Breitwieser I, de Lange PJ. 2022. Pseudognaphalium (Asteraceae, Gnaphalieae) diversity in New Zealand revealed by DNA sequences with notes on the phylogenetic relationships of Hawaiian Islands plants referred to Pseudognaphalium sandwicensium. New Zealand Journal of Botany. 61:304–331. doi: 10.1080/0028825X.2022.2132871.
- Space JC, Flynn T. 2001. Report to the Kingdom of Tonga on invasive plant species of environmental concern. Honolulu, Hawaii: USDA Forest Service.
- Starr F, Starr K, Loope L. 2003. Anredera cordifolia. Haleakala Field Station, Maui, Hawaiʻi: United States Geological Survey Biological Resources Division. http://www.starrenvironmental.com/publications/species_reports/pdf/anredera_cordifolia.pdf.
- Suzuki M, Taufatofua P, Koyama T. 2007. New records of plants from Tonga. Makinoa, n.s. 6:25–62.
- Swarbrick JT. 1997. Weeds of the Pacific Islands. Technical Paper No. 209. Noumea, New Caledonia: South Pacific Commission. p. 124.
- Sykes WR. 1978. The pteridophytes of ʻEua, southern Tonga. Bulletin of the Royal Society of New Zealand. 17:119–152.
- Sykes WR. 1981. The vegetation of Late, Tonga. Allertonia. 2:323–353.
- Sykes WR. 2016. Flora of Cook Islands. Kalaheo: Hawaiʻi: National Tropical Botanic Garden.
- Webb CJ, Garnock-Jones PJ, Sykes WR. 1988. Flora of New Zealand IV. Christchurch: Botany Division, D.S.I.R.
- Whistler WA. 1988. Checklist of the weed flora of western Polynesia. Technical Paper No. 194. Noumea, New Caledonia: South Pacific Commission. p. 69.
- Whistler WA. 1991. The ethnobotany of Tonga: the plants, their Tongan names, and their uses. Bernice P. Bishop Museum Series in Botany. 2:1–155.
- Whistler WA. 1992a. Vegetation of Samoa and Tonga. Pacific Science. 46:159–178.
- Whistler WA. 1992b. Flora of Tonga [unpublished checklist]. p. 107.
- Wiser SK, Drake DR, Burrows LE, Sykes WR. 2002. The potential for long-term persistence of forest fragments on Tongatapu, a large island in western Polynesia. Journal of Biogeography. 29:767–787. doi: 10.1046/j.1365-2699.2002.00723.x.
- Yuncker TG. 1959. Plants of Tonga. Bernice P. Bishop Museum Bulletin. 220:1–283.