Tonga is an archipelago and island nation in the South Pacific. It is home to 30 endemic species and subspecies of vascular plants.Endemic plants of Tonga, World Checklist of Vascular Plants (WCVP) checklist builder. Royal Botanic Gardens, Kew. Retrieved 21 February 2025.
Plants are listed alphabetically by plant family. Extinct and presumed extinct species are indicated with †.
Annonaceae Meiogyne amicorum
Arecaceae Pritchardia pacifica – Vava'u
Aspleniaceae Thelypteris macroptera – 'Eua
Dennstaedtiaceae Dennstaedtia parksii – Tongatapu and 'Eua
Goodeniaceae Scaevola porrecta
Lamiaceae Phyllostegia tongaensis – 'Ata I.
Malvaceae Grewia amicorum Grewia populoides
Meliaceae Aglaia heterotricha – 'Eua Didymocheton tongensis – 'Eua
Monimiaceae Hedycarya alternifolia – 'Eua
Orchidaceae Robiquetia tongaensis – Tongatapu and 'Eua
Pandanaceae Pandanus amicalis Pandanus tongatapuensis Pandanus vavauensis
Phyllanthaceae Phyllanthus amicorum
Pittosporaceae Pittosporum yunckeri
Plantaginaceae Plantago euana – 'Eua
Podocarpaceae Podocarpus pallidus – 'Eua, Vava'u
Rhamnaceae Alphitonia franguloides var. obtusa
Rubiaceae Atractocarpus crosbyi – Vava'u Ixora yunckeri – 'Eua Oldenlandia debilis Psychotria euaensis Psychotria kaoensis – Kao
Salicaceae Casearia buelowii – Vava'u Xylosma smithiana – Tongatabu
Sapindaceae Arytera bifoliata Guioa lentiscifolia
Selaginellaceae Selaginella yunckeri – Kao
References