Flora of Wallis-Futuna Islands

Metroxylon vitiense (vitiense - originating in Fiji, also known as the Fiji sago palm) is a species of flowering plant in the family Arecaceae, endemic to the islands of Fiji (hence its specific name vitiense, "of Viti", meaning Fiji in Fijian), Ovalau, and Vanua Levu in Fiji. There is only one confirmed occurrence of M. vitiense on Vanua Levu, just outside Savusavu. Despite it being considered a threatened species by the IUCN, as of February 2013 M. vitiense was still unprotected by Fijian regulations and international legislation. The palm has also been reported as living on the nearby

Syzygium samoense is a species of flowering plant in the myrtle family, Myrtaceae. It is a tree native to the Samoan Islands and Wallis and Futuna. Syzygium samoense is an evergreen tree growing up to 17 meter tall. It flowers in June and July, and fruits in February and July to September and possibly year-round. It grows in lowland and cloud forests on all the main Samoan islands from 100 to 1200 meters elevation.

Dendrobium macranthum is a species of orchid native to New Caledonia, the Santa Cruz Islands, Vanuatu, and Wallis and Futuna. It was described by French botanist Achille Richard in 1834.

Syzygium inophylloides is a species of flowering plant in the myrtle family, Myrtaceae. It is a tree native to Niue, the Samoan Islands, Tonga, and Wallis and Futuna.

Syzygium dealbatum is a species of flowering plant in the myrtle family, Myrtaceae. It is a tree native to Niue, the Samoan Islands, Tonga, and Wallis and Futuna. It is a small tree native to lowland forest. In Tonga it grows in forests over thinner, drier soils on coastal dunes and relatively recent lava and ash deposits, where the tree Casuarina equisetifolia is predominant, along with Pandanus tectorius, Hibiscus tiliaceus, and Scaevola taccada.

Syzygium corynocarpum is a species of flowering plant in the myrtle family, Myrtaceae. It is a tree native to Fiji, Niue, Tonga, and Wallis and Futuna. It has been introduced to the Samoan Islands. It is a small tree native to lowland forest. It is common in Fiji.

Decaspermum fruticosum is a species of flowering plant in the myrtle family, Myrtaceae. It is a tree or shrub native to the Samoan Islands, Society Islands, Tonga, and Wallis and Futuna.

Myristica hypargyraea is a species of flowering plant in the nutmeg family, Myristicaceae. It is a tree native to the Caroline Islands, Samoan Islands, Tonga, and Wallis and Futuna. It grows up to 25 meters tall. Two subspecies are accepted: Myristica hypargyraea subsp. hypargyraea – Samoan Islands, Tonga, and Wallis and Futuna Myristica hypargyraea subsp. insularis (Kaneh.) W.J.de Wilde – Caroline Islands The Pacific imperial pigeon (Ducula pacifica) plays a significant role in the reproduction of the species by dispersing seeds.

Diospyros major, or the Fiji persimmon, is a tree in the family Ebenaceae that is native to Fiji, Tonga, Uvea, and Futuna. It is called 'mapa in the Tongan language.

Psychotria insularum is a rainforest understory shrub from the coffee family, Rubiaceae. Its native range is the South Pacific. It has traditional uses in herbal medicine. In 2021, the potent anti-inflammatory rutin was isolated from P. insularum (known in Samoa as "matalafi").

Aglaia saltatorum is a species of plant in the family Meliaceae. It is found in Fiji, Niue, the Solomon Islands, Tonga, Vanuatu, and Wallis and Futuna Islands. It is a threatened species due to habitat loss.

Syzygium clusiifolium is a species of flowering plant in the myrtle family, Myrtaceae. It is a tree native to Niue, the Samoan Islands, Tonga, Vanuatu, and Wallis and Futuna. In Vanuatu it is found on Malakula, Paama, Pentecost, Espiritu Santo, Efate, Aneityum, Aniwa, Tanna, and Hiu. It is a small to medium-sized tree growing up to 20 meters tall. It has red fruits. It grows mostly in littoral coastal forest and lowland rainforests, in primary forest, secondary forest, and disturbed areas, up to 300 meters elevation. In the Samoan Islands it also grows on offshore tuff cone volcanic islets.

Phaleria disperma is an ornamental flowering evergreen plant native to the southwestern Pacific, where it is found in Fiji, Niue, Samoa, Tonga, and Wallis and Futuna.

Gardenia taitensis, also called Tahitian gardenia or tiaré flower, is a species of plant in the family Rubiaceae. It is an evergreen tropical shrub that grows to 4 m (10 ft) tall and has glossy dark green leaves that are 5–16 cm (2–6 in) long and are oppositely arranged along the stem. The flower is creamy white and pinwheel-shaped with 5–9 lobes, each 2–4 cm (0.8–2 in) long and fragrant. Native to the highland shores of the South Pacific, it has the distinction of being one of the few cultivated plants native to Polynesia. It is the national flower of French Polynesia and the Cook Islands.

Mussaenda raiateensis, commonly known as the Pacific mussaenda or Pacific flag-tree, is a plant of family Rubiaceae native to Tonga, Samoa, the Cook Islands and Society Islands in the South Pacific Ocean.

Alyxia bracteolosa is a species of flowering plant in the family Apocynaceae, native to the Solomon Islands and south-western Pacific (Fiji, Samoa, Tonga, Vanuatu and Wallis and Futuna). It was first described by Louis Claude Richard in 1862.

Phreatia limenophylax, commonly known as the Norfolk Island caterpillar orchid is a plant in the orchid family, an epiphyte with four to six fleshy, channelled leaves in a fan-like arrangement. A large number of tiny white flowers are arranged along a thin flowering stem. It grows on the Solomon Islands, Norfolk Island and other islands of the southwest Pacific Ocean.

Acacia simplex is a perennial climbing tree native to islands in the western part of the Pacific Ocean as far east as Savaiʻi. It is also found in Argentina. This tree grows up to 12 m in height. There is no common English name, but it is called tatakia in Fiji, tatagia in Samoa, tātāngia in Tonga and Martaoui in New-Caledonia

Cyperus seemannianus is a species of sedge native to Fiji, Niue, the Samoan Islands, Society Islands, Tonga, Vanuatu, and Wallis and Futuna in the South Pacific. The species was first formally described by the botanist Johann Otto Boeckeler in 1870.

Aglaia samoensis is a species of tree in the family Meliaceae. It is found in American Samoa, New Guinea, Samoa, the Solomon Islands, Vanuatu, and Wallis and Futuna Islands.

Myristica inutilis is a species of flowering plant in the nutmeg family, Myristicaceae. It is a tree native to the South Pacific, ranging from New Guinea through the Bismarck Archipelago and Solomon Islands (including Bougainville) to Vanuatu, Wallis and Futuna, and the Samoan Islands. It is not native to Fiji, but may be present in Tonga.

Ficus scabra is a fig species in the family Moraceae native to Fiji, New Caledonia, Niue, Samoa, Tonga, Vanuatu, and Wallis-Futuna Island in the southwestern Pacific.

Pandanus whitmeeanus, commonly known as the Samoan pandanus, is a species of Pandanus (screwpine) believed to be native to Vanuatu. It has been introduced to Samoa, Tonga, the Cook Islands, and the Hoorn Islands by Austronesian voyagers. It is also known in Samoan and Tongan as ‘ara ‘āmoa or paogo.

Metroxylon is a genus of monoecious flowering plants in the Arecaceae (palm) family, and commonly called the sago palms consisting of seven species. They are native to Western Samoa, New Guinea, the Solomon Islands, the Moluccas, the Carolines and Fiji in a variety of habitats, and cultivated westward to Thailand and Malaya. The name is a combination of two Greek words: metra meaning "womb", commonly translated as "heart" in this context, and xylon meaning "wood", in allusion to the large proportion of pith contained in the plant.

Alphitonia zizyphoides is a species of flowering plant in the buckthorn family, Rhamnaceae. It is a tree native to the Cook Islands, Fiji, Niue, the Samoan Islands, the Society Islands, Tonga, Vanuatu, and Wallis and Futuna.

Didymocheton alliaceus is a species of flowering plant in the mahogany family, Meliaceae. It is a tree native to the tropical Pacific islands, ranging from the Solomon Islands to the Caroline Islands, Vanuatu, Fiji, Wallis and Futuna, Niue, Tonga, and the Samoan Islands. It is most closely related to Didymocheton mollissimus of Malesia and mainland Southeast Asia, D. mollis of the Bismarck Archipelago, New Guinea, and Sulawesi, and D. muelleri of northeastern Australia. The species was first described as Trichilia alliacea by Georg Forster in 1786. It was reclassified as Didymocheton

Sarcanthopsis, commonly known as goliath orchids, is a genus of six species of flowering plants from the orchid family, Orchidaceae. Plants in this genus are large epiphytes or lithophytes with long, thick, leathery stems, large, crowded leathery leaves and many yellowish flowers on a branched flowering stem. Orchids in this genus occur in New Guinea and islands of the south-west Pacific.

Ischaemum byrone, commonly known as Hilo murainagrass or Hilo ischaemum, is a species of grass native to the Pacific Islands, including the Cook Islands, Fiji, Hawaiian Islands, New Caledonia, Niue, Society Islands, Tonga, Tubuai Islands, and Wallis and Futuna. In Hawaii it is found on the islands of Kauai, Maui, Molokai, and Hawaii but has unfortunately been extirpated from Oahu, where it was once known to grow. There are perhaps 1,000 to 3,000 individual plants remaining in total. This grass is perennial, spreading via stolons, with stems reaching up to 80 centimetres (31 in) in maximum

Planchonella torricellensis is a tree in the family Sapotaceae. It is native to Maluku, the Lesser Sunda Islands, New Guinea, Fiji, Niue, the Samoan Islands, Tonga, the Tuamotus, and Wallis and Futuna. It is a large tree, growing up to 40 meters tall. It is a canopy tree in lowland moist forest.

Melastoma denticulatum is a species of flowering plant in the family Melastomataceae, native from the Solomon Islands to the south Pacific.