List of extinct flora of Australia

Threatened species are listed under the Nature Conservation Act 2014 in the Australian Capital Territory.

There are 35 taxa "presumed extinct" as specified in Part 4 of Schedule 1 of the New South Wales Threatened Species Conservation Act 1995.[6] Species presumed extinct in New South Wales, but not listed under the EPBC Act include:

Rhaphidospora bonneyana, Glinus orygioides, Ptilotus extenuatus, Acanthocladium dockeri (listed by EPBC as extinct in SA, but not NSW), Blumea lacera, Senecio behrianus, Stemmacantha australis, Lepidium foliosum, Stenopetalum velutinum, Atriplex acutiloba, Maireana lanosa, Osteocarpum pentapterum, Hypolepis elegans, Codonocarpus pyramidalis, Haloragis stricta, Myriophyllum implicatum, Caladenia rosella, Thelymitra epipactoides, Comesperma scoparium, Grevillea nematophylla, Persoonia laxa, Pomaderris oraria, Aphanes pentamera, Knoxia sumatrensis, Micromelum minutum, Philotheca angustifolia, Dodonaea stenophylla, Tetratheca pilosa subsp. pilosa.

Although listed as extinct under the EPBC Act, Diurus bracteata is listed as endangered in New South Wales.

Threatened species is the Northern Territory are listed under IUCN criteria by the Department of Natural Resources, Environment and the Arts.[7] As of 2006 there are no recorded plant extinctions in the Northern Territory.[8]

Threatened species are listed under the National Parks and Wildlife Act 1972 in South Australia. 26 plant taxa are presumed extinct in South Australia, 2 of these are listed under the EPBC Act[9][10]

Threatened species are listed under the Nature Conservation Act 1992 and the Nature Conservation (Wildlife) Regulation 2006 in Queensland, under this act some species are described as "presumed extinct". There are currently 27 species described as presumed extinct in Queensland,[11] those not listed under the EPBC Act include:

Acianthus ledwardii, Amphineuron immersum, Antrophyum austroqueenslandicum, Corchorus thozetii, Dimocarpus leichhardtii, Lindsaea pulchella var. blanda, Oldenlandia tenelliflora var. papuana, Rhaphidospora cavernarum, Tapeinosperma flueckigeri, Teucrium ajugaceum, Trichomanes exiguum, Wendlandia psychotrioides, Zieria sp. (Russell River S.Johnson in 1892).

It was reported[12] on 12 April 2008 that two of the plants, Rhaphidospora cavernarum and Teucrium ajugaceum have been rediscovered on Cape York between Cooktown and Lockhart River, and are now re-classified as "vulnerable".

There are 20 taxa classified as "presumed extinct" under schedule 3.2 of the Tasmanian Threatened Species Protection Act 1995. Only three of these species are listed as extinct under the EPBC Act.[13] The additional species listed as extinct under Tasmanian legislation are:

Ballantinia antipoda, Banksia integrifolia subsp. integrifolia, Botrychium australe, Caladenia cardiochila, Chenopodium erosum, Coopernookia barbata, Hibbertia obtusifolia, Lepilaena australis, Levenhookia dubia, Myriophyllum glomeratum, Podotheca angustifolia, Prostanthera cuneata, Punctelia subflava, Senecio macrocarpus, Thesium australe, Thynninorchis huntiana and Veronica notabilis.

Threatened species in Victoria are identified under the auspices of the Flora and Fauna Guarantee Act (1988); the act does not specify species presumed extinct. The Victorian Department of Sustainability and Environment maintain a list of species presumed extinct in Victoria;[14] they list 51 extinct taxa, those not listed under the EPBC Act include:

Acacia argyrophylla, Acacia havilandiorum, Acrotriche depressa, Actinotus bellidioides, Asplenium polyodon, Atriplex billardierei, Austrostipa tuckeri, Caladenia carnea var. subulata, Caladenia magnifica, Caladenia thysanochila, Calotis pubescens, Cardamine gunnii s.s., Centipeda pleiocephala, Cheiranthera alternifolia, Chionogentias gunniana, Convolvulus microsepalus, Cuscuta victoriana, Cyperus vaginatus, Digitaria diffusa, Dodonaea heteromorpha, Epilobium willisii, Euphrasia collina subsp. speciosa, Hibbertia incana s.s., Hypolepis elegans subsp. elegans, Leiocarpa tomentosa, Leionema microphyllum, Lemooria burkittii, Leptorhynchos scaber s.s., Phyllangium sulcatum, Picris barbarorum, Podolepis arachnoidea, Pomaderris obcordata, Prasophyllum colemaniae, Prasophyllum morganii, Prasophyllum sp. aff. odoratum, Prasophyllum suttonii s.s., Pterostylis sp. aff. biseta (Lara), Rutidosis helichrysoides, Senecio murrayanus, Senna form taxon 'artemisioides', Stemmacantha australis, Stenanthemum notiale subsp. notiale, Trema tomentosa var. viridis, Braithwaitea sulcata.

There are 14 taxa classified as "X: Declared Rare Flora - Presumed Extinct Taxa" under the Department of Environment and Conservation's Declared Rare and Priority Flora List, all of which have been gazetted as presumed extinct flora in Western Australia under the Wildlife Conservation Act 1950.[15][16] This list coincides with the federal EPBC Act list, except that it includes Leptomeria dielsiana, Ptilotus caespitulosus and Taraxacum cygnorum; and excludes Frankenia conferta (Silky Frankenia) and Calothamnus accedens.[1]