This is a list of vascular plants that are indigenous to, or naturalised on, Norfolk Island. The list is based on the most recent authoritative treatment of Norfolk Island, the 1994 Flora of Australia 49. That source is dated in places; for example its classification of the flowering plants uses the Cronquist system, aspects of which are no longer accepted. This list therefore differs from the Flora of Australia treatment in several areas; these are footnoted.
List of flora of Norfolk Island
Norfolk Island has 523 taxa of vascular plants, 136 of which are indigenous, and 387 naturalised. Forty-four of the indigenous taxa are endemic. There are two endemic genera, Ungeria and Streblorrhiza.
The eudicots are represented on Norfolk Island by 75 families, 220 genera, and 287 species.
Acanthaceae
Aizoaceae
Amaranthaceae
Anacardiaceae
Apiaceae
Apocynaceae
Araliaceae
Asclepiadaceae
Asteraceae
Basellaceae
Bignoniaceae
Boraginaceae
Brassicaceae
Caesalpiniaceae
Campanulaceae
Cannabaceae
Capparaceae
Caprifoliaceae
Caryophyllaceae
Casuarinaceae
Celastraceae
Convolvulaceae
Corynocarpaceae
Crassulaceae
Cucurbitaceae
Euphorbiaceae
Fabaceae
Frankeniaceae
Fumariaceae
Gentianaceae
Geraniaceae
Lamiaceae
Lauraceae
Linaceae
Loranthaceae
Lythraceae
Malvaceae
Meliaceae
Mimosaceae
Moraceae
Myoporaceae
Myrtaceae
Nyctaginaceae
Ochnaceae
Oleaceae
Onagraceae
Orobanchaceae
Oxalidaceae
Papaveraceae
Passifloraceae
Pennantiaceae
Phytolaccaceae
Piperaceae
Pittosporaceae
Plantaginaceae
Plumbaginaceae
Polygalaceae
Polygonaceae
Portulacaceae
Primulaceae
Proteaceae
Ranunculaceae
Rosaceae
Rubiaceae
Rutaceae
Santalaceae
Sapindaceae
Sapotaceae
Scrophulariaceae
Solanaceae
Thymelaeaceae
Tiliaceae
Urticaceae
Verbenaceae
Violaceae
Viscaceae
Monocotyledons
The Monocotyledons (monocots) are represented on Norfolk Island by 16 families, 81 genera, and 110 species. Most of them are naturalised, with naturalised grasses account for 5 families, 47 genera and 67 species. Of the 43 indigenous species, 9 are endemic.
Agavaceae
Alliaceae
Araceae
Arecaceae
Asphodelaceae
Cannaceae
Colchicaceae
Commelinaceae
Cyperaceae
Hemerocallidaceae
Iridaceae
Juncaceae
Liliaceae
Limnocharitaceae
Orchidaceae
Pandanaceae
Poaceae
Pontederiaceae
Smilacaceae
Typhaceae
Pinophyta
Two species of Pinophyta (conifers) occur on Norfolk Island: the popular endemic Araucaria heterophylla (Norfolk Island Pine), and the naturalised Cupressus lusitanica.
Araucariaceae
Cupressaceae
Pteridophyta
The Pteridophyta (ferns) are represented on Norfolk Island by 14 families, 24 genera, and 37 species. Seven species are endemic; none are naturalised.
Adiantaceae
Aspleniaceae
Athyriaceae
Azollaceae
Blechnaceae
Cyatheaceae
Davalliaceae
Dennstaedtiaceae
Dryopteridaceae
Gleicheniaceae
Hymenophyllaceae
Marattiaceae
Nephrolepidaceae
Polypodiaceae
Pteridaceae
Salviniaceae
Thelypteridaceae
Vittariaceae
Norfolk Island has two species of Lycopodiophyta, the indigenous club moss Lycopodiella cernua and the naturalised spikemoss Selaginella kraussiana.
Lycopodiaceae
Selaginellaceae
Norfolk Island has two species of Psilotophyta.
Psilotaceae
Norfolk Island has one species of Ophioglossophyta.
Ophioglossaceae
Notes
References