List of critically endangered plants
- Extinct in the wild (EW): 37 species
- Critically endangered (CR): 2,493 species
- Endangered (EN): 3,654 species
- Vulnerable (VU): 5,430 species
- Near threatened (NT, LR/cd): 1,851 species
- Least concern (LC): 6,645 species
- Data deficient (DD): 1,674 species
Plant species (IUCN, 2016-2)
- 21,782 extant species have been evaluated
- 20,108 of those are fully assessed[a]
- 8496 are not threatened at present[b]
- 11,577 to 13,251 are threatened[c]
- 151 to 296 are extinct or extinct in the wild:
- 116 extinct (EX) species[d]
- 35 extinct in the wild (EW)
- 132 possibly extinct [CR(PE)]
- 13 possibly extinct in the wild [CR(PEW)]
- ^ excludes data deficient evaluations.
- ^ NT, LR/cd, LC.
- ^ Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
- ^ Chart omits extinct (EX) species
Critically Endangered (CR) species face an extremely high risk of extinction in the wild.
As of September 2016, the International Union for Conservation of Nature (IUCN) lists 2493 critically endangered plant species, including 145 which are tagged as possibly extinct or possibly extinct in the wild.[1][2] 11% of all evaluated plant species are listed as critically endangered. The IUCN also lists 89 subspecies and 70 varieties as critically endangered.
Additionally 1674 plant species (7.6% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN.[3] While the category of data deficient indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed."[4]
This is a complete list of critically endangered plant species, subspecies and varieties evaluated by the IUCN. Species considered possibly extinct by the IUCN are marked as such.
Algae[]
- Galaxaura barbata (possibly extinct)
- (possibly extinct)
Bryophytes[]
There are 23 bryophyte species assessed as critically endangered.
Mosses[]
- Acritodon nephophilus
- Brymela tutezona
- Fissidens hydropogon
- Lepidopilum grevilleanum
- Limbella fryei
- Neckeropsis pocsii
- Ochyraea tatrensis
- Ozobryum ogalalense
- Pinnatella limbata
- Taxitheliella richardsii
- Thamnobryum angustifolium
- Weissia multicapsularis
Liverworts[]
- Bazzania bhutanica
- Bryopteris gaudichaudii
- Drepanolejeunea senticosa
- Geothallus tuberosus
- Kurzia sinensis
- Myriocolea irrorata
- Phycolepidozia exigua
- Schistochila undulatifolia
- Sphaerolejeunea umbilicata
- Spruceanthus theobromae
- Vandiemenia ratkowskiana
Pteridophytes[]
There are 67 species and three varieties of pteridophyte assessed as critically endangered.
Leptosporangiate ferns[]
There are 54 species and three varieties in the class Polypodiopsida assessed as critically endangered.
Polypodiales[]
There are 49 species and three varieties in the order Polypodiales assessed as critically endangered.
Aspleniaceae[]
- Asplenium complanatum
- Asplenium daghestanicum, Dagestanian spleenwort
- Asplenium dielerectum, Asplenium-diellia
- Asplenium dielfalcatum
- Asplenium haughtonii, Barn fern
- Asplenium schizotrichum
Dryopteridaceae[]
Species
- Ctenitis pallatangana (possibly extinct)
- Ctenitis squamigera, Pacific lacefern
- Dryopteris cognata, Large kidney fern
- Elaphoglossum dimorphum, Toothed tongue-fern
- (possibly extinct)
- Elaphoglossum nervosum, Veined tongue-fern
- (possibly extinct)
- Lastreopsis subrecedens
- Polystichum drepanum, Madeira shield-fern
Varieties
Polypodiaceae[]
- Platycerium grande, Giant Staghorn Fern
Other Polypodiales species[]
- Adenophorus periens (possibly extinct)
- Anogramma ascensionis, Ascension Island parsley fern
- (possibly extinct)
- Diplazium molokaiense
- (possibly extinct)
- Doryopteris angelica
- Melpomene brevipes (possibly extinct)
- Polypodium abitaguae
- Pteris adscensionis
- Thelypteris bonapartii
Hymenophyllales[]
- Hymenophyllum contractile
- Hymenophyllum helicoideum
- Hymenophyllum tenerum
Salviniales[]
Isoetopsida[]
- Isoetes heldreichii, Pindus quillwort (possibly extinct)
- Isoetes malinverniana, Piedmont quillwort
- Isoetes olympica, Olympic quillwort
- Isoetes sinensis (possibly extinct)
- Isoetes taiwanensis
Other pteridophyte species[]
- Mankyua chejuense
- Phlegmariurus nutans
- Ptisana purpurascens
Gymnosperms[]
There are 81 species, five subspecies, and 13 varieties of gymnosperm assessed as critically endangered.
Cycads[]
Species
- Ceratozamia euryphyllidia
- Ceratozamia fuscoviridis
- Ceratozamia huastecorum
- Ceratozamia kuesteriana
- Ceratozamia miqueliana
- Ceratozamia zaragozae
- Ceratozamia zoquorum
- Cycas annaikalensis
- Cycas chamaoensis
- Cycas curranii, Curran's pitogo
- Cycas debaoensis
- Cycas fugax (possibly extinct)
- Cycas hongheensis
- Cycas pachypoda
- Cycas szechuanensis
- Cycas tansachana
- Cycas wadei, Wade's pitogo
- Cycas zambalensis
- Encephalartos aemulans, Ngotshe cycad
- Encephalartos cerinus, Waxen cycad (possibly extinct)
- Encephalartos cupidus, Blyde river cycad
- Encephalartos dolomiticus, Wolkberg cycad
- Encephalartos dyerianus, Lillie cycad
- Encephalartos equatorialis
- Encephalartos heenanii, Heenan's cycad
- Encephalartos hirsutus, Venda cycad (possibly extinct)
- Encephalartos inopinus, Lydenburg cycad (possibly extinct)
- Encephalartos kanga, Mnanasi Pori
- Encephalartos laevifolius, Kaapsehoop cycad
- Encephalartos latifrons, Albany cycad
- Encephalartos middelburgensis, Middelburg cycad
- Encephalartos msinganus, Msinga cycad
- Encephalartos pterogonus, Toothed-cone cycad
- Encephalartos sclavoi, Sclavo's cycad
- Encephalartos whitelockii
- Microcycas calocoma
- Zamia amplifolia
- Zamia disodon
- Zamia gentryi
- Zamia hymenophyllidia
- Zamia inermis
- Zamia macrochiera
- Zamia montana
- Zamia monticola
- Zamia prasina
- Zamia purpurea
- Zamia pygmaea
- Zamia restrepoi
- Zamia spartea
- Zamia urep
- Zamia vazquezii, Little chamal
- Zamia wallisii
Subspecies
Conifers[]
Species
- Abies beshanzuensis, Baishan fir
- Abies nebrodensis, Sicilian fir
- Abies numidica, Algerian fir
- Abies yuanbaoshanensis, Yuanbaoshan fir
- Acmopyle sahniana
- Agathis montana, Mount Panié kauri
- Araucaria angustifolia, Parana pine
- Araucaria nemorosa
- Dacrydium guillauminii
- Glyptostrobus pensilis, Chinese swamp cypress
- Juniperus bermudiana, Bermuda cedar
- Juniperus saxicola
- Libocedrus chevalieri
- Pherosphaera fitzgeraldii
- Picea koyamae, Koyama's spruce
- Picea neoveitchii, Veitch's spruce
- Pinus cernua
- Pinus squamata
- Pinus torreyana, Torrey pine
- Podocarpus costaricensis
- Podocarpus decumbens
- Podocarpus palawanensis
- Podocarpus perrieri (possibly extinct)
- Podocarpus urbanii, Blue mountain yacca
- Taxus floridana, Florida yew
- Torreya taxifolia, Florida nutmeg tree
- Widdringtonia cedarbergensis, Clanwilliam cedar
- Widdringtonia whytei, Mulanje cedar
- Wollemia nobilis, Wollemi pine
Subspecies
- Abies delavayi subsp. fansipanensis, Fansipan fir
- Pinus torreyana subsp. torreyana[5]
Varieties
- , San Pedro cypress
- , Cuyamaca cypress
- , Atlas cypress
- , Barbados cedar
Dicotyledons[]
There are 1895 species, 78 subspecies, and 49 varieties of dicotyledon assessed as critically endangered.
Piperales[]
Piperaceae[]
Species
- Peperomia albovittata
- Peperomia cordilimba
- Peperomia dauleana (possibly extinct)
- Peperomia glandulosa
- Peperomia guayaquilensis
- Peperomia leucorrhachis
- Peperomia litana
- Peperomia micromerioides
- Peperomia mitchelioides
- Peperomia parvilimba
- Peperomia peploides
- Peperomia petraea (possibly extinct)
- Peperomia pichinchae
- Peperomia pululaguana
- Peperomia stenostachya
- Peperomia tablahuasiana
- Piper angamarcanum
- Piper baezanum
- Piper bullatifolium
- Piper clathratum
- Piper entradense
- Piper eustylum
- Piper gualeanum
- Piper guayasanum
- Piper hydrolapathum
- Piper manabinum
- Piper mexiae
- Piper molliusculum (possibly extinct)
- Piper platylobum
- Piper poscitum
- Piper stipulosum
- Piper subnitidifolium
- Piper trachyphyllum
- Piper wibomii
Varieties
Campanulales[]
There are 62 species and 12 subspecies in Campanulales assessed as critically endangered.
Campanulaceae[]
Species
- Brighamia insignis
- Brighamia rockii
- Burmeistera asplundii
- Burmeistera rubrosepala
- Campanula aghrica, Aghrian bellflower
- Campanula kantschavelii, Kanchaveli's bellflower
- Campanula lazica, Lazian campanula
- Campanula seraglio, Serail bellflower
- Campanula troegerae
- Centropogon albostellatus
- Centropogon brachysiphoniatus (possibly extinct)
- Centropogon cazaletii
- Centropogon pilalensis
- Centropogon solisii
- Centropogon uncinatus
- Clermontia peleana
- Clermontia pyrularia, Pear clermontia
- Cyanea acuminata, Honolulu cyanea
- Cyanea asarifolia
- Cyanea asplenifolia
- Cyanea calycina
- Cyanea crispa
- Cyanea dunbariae
- Cyanea gibsonii
- Cyanea glabra
- Cyanea grimesiana
- Cyanea hamatiflora
- Cyanea humboldtiana
- Cyanea kolekoleensis (possibly extinct)
- Cyanea konahuanuiensis
- Cyanea kuhihewa
- Cyanea lobata
- Cyanea longiflora
- Cyanea mannii
- Cyanea marksii, Mark's cyanea
- Cyanea mceldowneyi
- Cyanea platyphylla
- Cyanea procera, Haha
- Cyanea remyi
- Cyanea rivularis
- Cyanea shipmanii
- Cyanea stictophylla
- Cyanea st.-johnii, St John's rollandia
- Cyanea truncata, Punaluu cyanea
- Cyanea undulata
- Delissea kauaiensis
- Delissea rhytidosperma (possibly extinct in the wild)
- (possibly extinct)
- Lobelia gaudichaudii
- Lobelia monostachya
- Lobelia oahuensis
- Muehlbergella oweriniana, Owerin's muchlenbergella
- Siphocampylus loxensis (possibly extinct)
- Siphocampylus uncipes
- Trematolobelia singularis
- Wahlenbergia linifolia, Large bellflower
Subspecies
- , Oahu clermontia
Goodeniaceae[]
- Scaevola socotraensis
Aristolochiales[]
- Aristolochia utriformis
- Aristolochia westlandii
- Asarum monodoriflorum
- Pararistolochia preussii
Theales[]
There are 295 species and 23 subspecies in Theales assessed as critically endangered.
Dipterocarpaceae[]
Species
- Anisoptera curtisii
- Anisoptera megistocarpa
- Anisoptera reticulata
- Cotylelobium lewisianum
- Dipterocarpus applanatus
- Dipterocarpus baudii
- Dipterocarpus bourdilloni
- Dipterocarpus coriaceus
- Dipterocarpus cornutus
- Dipterocarpus costulatus
- Dipterocarpus cuspidatus
- Dipterocarpus dyeri
- Dipterocarpus elongatus
- Dipterocarpus eurynchus
- Dipterocarpus fagineus
- Dipterocarpus fusiformis
- Dipterocarpus glabrigemmatus
- Dipterocarpus globosus
- Dipterocarpus gracilis
- Dipterocarpus grandiflorus (possibly extinct)
- Dipterocarpus hasseltii
- Dipterocarpus hispidus
- Dipterocarpus kerrii
- Dipterocarpus kunstleri
- Dipterocarpus lamellatus
- Dipterocarpus lowii
- Dipterocarpus rigidus
- Dipterocarpus semivestitus
- Dipterocarpus tempehes
- Dipterocarpus turbinatus
- Dipterocarpus validus
- Dryobalanops fusca
- Dryobalanops keithii
- Hopea acuminata
- Hopea aequalis
- Hopea apiculata
- Hopea bancana
- Hopea basilanica
- Hopea beccariana
- Hopea bilitonensis
- Hopea brachyptera
- Hopea brevipetiolaris
- Hopea cagayanensis
- Hopea chinensis
- Hopea cordata
- Hopea coriacea
- Hopea depressinerva
- Hopea enicosanthoides
- Hopea erosa
- Hopea ferruginea
- Hopea glaucescens
- Hopea hainanensis
- Hopea helferi
- Hopea hongayanensis
- Hopea inexpectata
- Hopea jacobi
- Hopea johorensis
- Hopea kerangasensis
- Hopea latifolia
- Hopea malibato
- Hopea mengerawan
- Hopea micrantha
- Hopea mindanensis
- Hopea mollissima
- Hopea montana
- Hopea nervosa
- Hopea nigra
- Hopea nutans
- Hopea ovoidea
- Hopea pentanervia
- Hopea philippinensis
- Hopea plagata
- Hopea polyalthioides
- Hopea pubescens
- Hopea quisumbingiana
- Hopea reticulata
- Hopea samarensis
- Hopea sangal
- Hopea sphaerocarpa
- Hopea subalata
- Hopea wyattsmithii
- Parashorea aptera
- Parashorea lucida
- Parashorea malaanonan
- Parashorea stellata
- Shorea acuminata
- Shorea acuminatissima
- Shorea acuta
- Shorea almon
- Shorea asahii
- Shorea astylosa
- Shorea bakoensis
- Shorea balangeran
- Shorea blumutensis
- Shorea bullata
- Shorea carapae
- Shorea chaiana
- Shorea collina
- Shorea congestiflora
- Shorea conica
- Shorea contorta
- Shorea cordata
- Shorea cordifolia
- Shorea dealbata
- Shorea dispar (possibly extinct)
- Shorea elliptica
- Shorea falcata
- Shorea falciferoides
- Shorea farinosa
- Shorea flaviflora
- Shorea flemmichii
- Shorea foraminifera
- Shorea foxworthyi
- Shorea gardneri
- Shorea geniculata
- Shorea gibbosa
- Shorea guiso, Red balau
- Shorea hopeifolia
- Shorea hypochra
- Shorea hypoleuca
- Shorea iliasii
- Shorea inaequilateralis
- Shorea inappendiculata
- Shorea induplicata
- Shorea isoptera
- Shorea johorensis
- Shorea kuantanensis
- Shorea kudatensis
- Shorea kunstleri
- Shorea ladiana
- Shorea lamellata
- Shorea laxa
- Shorea lepidota
- Shorea leptoderma
- Shorea lissophylla
- Shorea longiflora
- Shorea longisperma
- Shorea lumutensis
- Shorea lunduensis
- Shorea macrantha
- Shorea macrobalanos
- Shorea malibato
- Shorea materialis
- Shorea megistophylla
- Shorea micans
- Shorea montigena
- Shorea mujongensis
- Shorea myrionerva
- Shorea negrosensis
- Shorea oblongifolia
- Shorea obovoidea
- Shorea ochrophloia
- Shorea ovalifolia
- Shorea pachyphylla
- Shorea palembanica
- Shorea pallescens
- Shorea pallidifolia
- Shorea palosapis
- Shorea peltata
- Shorea platycarpa
- Shorea polyandra
- Shorea polysperma
- Shorea praestans
- Shorea pubistyla
- Shorea resinosa
- Shorea revoluta
- Shorea rotundifolia
- Shorea rubella
- Shorea rugosa
- Shorea sagittata
- Shorea selanica
- Shorea seminis
- Shorea slootenii
- Shorea smithiana
- Shorea stipularis
- Shorea subcylindrica
- Shorea sumatrana
- Shorea superba
- Shorea symingtonii
- Shorea tenuiramulosa
- Shorea thorelii
- Shorea trapezifolia
- Shorea waltoni
- Shorea xanthophylla
- Shorea zeylanica
- Stemonoporus affinis
- Stemonoporus canaliculatus
- Stemonoporus elegans
- Stemonoporus gilimalensis
- Stemonoporus gracilis
- Stemonoporus lanceolatus
- Stemonoporus lancifolius
- Stemonoporus latisepalus
- Stemonoporus marginalis
- Stemonoporus moonii
- Stemonoporus nitidus
- Stemonoporus petiolaris
- Vateria indica
- Vateria macrocarpa
- Vateriopsis seychellarum
- Vatica affinis
- Vatica bella
- Vatica brevipes
- Vatica cauliflora
- Vatica chartacea
- Vatica chinensis
- Vatica compressa
- Vatica congesta
- Vatica coriacea
- Vatica cuspidata
- Vatica diospyroides
- Vatica elliptica
- Vatica flavida
- Vatica flavovirens
- Vatica globosa
- Vatica guangxiensis
- Vatica havilandii
- Vatica hullettii
- Vatica lanceaefolia
- Vatica lobata
- Vatica maingayi
- Vatica obovata
- Vatica pachyphylla
- Vatica parvifolia
- Vatica pentandra
- Vatica ridleyana
- Vatica rotata
- Vatica sarawakensis
- Vatica scortechinii
- Vatica soepadmoi
- Vatica teysmanniana
- Vatica venulosa
- Vatica xishuangbannaensis (possibly extinct)
Subspecies
Theaceae[]
- Camellia azalea
- Euryodendron excelsum
- Freziera euryoides
- Freziera forerorum
- Freziera inaequilatera
- Freziera roraimensis
- Freziera stuebelii
- Freziera subintegrifolia
- Freziera uniauriculata
- Freziera varibrateata
- Laplacea curtyana
- Ternstroemia bullata
- Ternstroemia glomerata
- Ternstroemia granulata
- Ternstroemia landae
- Ternstroemia luquillensis
- Ternstroemia subsessilis
Guttiferae[]
- Bonnetia ptariensis
- Calophyllum acutiputamen
- Calophyllum cuneifolium
- Garcinia cadelliana
- Hypericum fissurale, Cracked Saint John's wort
- Hypericum hartwegii
- Mesua manii
- Mesua stylosa
- Poeciloneuron pauciflorum
- Tovomita aequatoriensis
Other Theales species[]
- Asteropeia amblyocarpa
- Medusagyne oppositifolia, Jellyfish tree
- Ochna rufescens
- Ouratea elegans
- Saurauia bogoriensis
- Saurauia punduana
Malvales[]
Species
- Abutilon eremitopetalum, Hidden-petaled abutilon
- Abutilon menziesii
- Abutilon sandwicense, Greenflower Indian mallow
- Byttneria minytricha
- Carpodiptera mirabilis
- Cola cecidiifolia
- Cola metallica
- Cola nigerica
- Cola praeacuta
- Craigia kwangsiensis
- Dicellostyles axillaris
- Dombeya acutangula
- Dombeya ledermannii
- Elaeocarpus bojeri
- Elaeocarpus gaussenii
- Elaeocarpus integrifolius
- Hampea thespesioides
- Herrania laciniifolia
- Hibiscadelphus distans
- Hibiscadelphus giffardianus
- Hibiscadelphus hualalaiensis
- Hibiscus clayi, Clay's hibiscus
- Hibiscus fragilis
- Hildegardia populifolia
- Kokia drynarioides, Hawaiian tree cotton
- Kokia kauaiensis, Kauai koki'o
- Leptolaena delphinensis
- Leptolaena masoalensis
- Leptolaena raymondii
- Perrierodendron quartzitorum
- Pterospermum kingtungense
- Pterospermum menglunense
- Pterospermum yunnanense
- Quararibea jefensis
- Quararibea santaritensis
- Quararibea yunckeri
- Reevesia rotundifolia
- Sarcolaena grandiflora
- Sarcolaena humbertiana
- Sarcolaena isaloensis
- Sloanea shankii
- Trochetiopsis ebenus, Dwarf ebony
- Wercklea flavovirens
Subspecies
Varieties
Geraniales[]
- Erodium astragaloides
- Erodium hendrikii, Heron's bill
- Erodium sosnowskianum, Sosonovskiy's heron's-bill
- Geranium antisanae
- Geranium arboreum
- Geranium kauaiense
- Geranium maderense
- Impatiens gordonii, Seychelles bizzie lizzie
- Impatiens grandisepala
- Oxalis norlindiana
- Pelargonium cotyledonis, Old father live forever
- Pelargonium insularis
- Tropaeolum umbellatum
Lecythidales[]
Species
- Cariniana kuhlmannii
- Cariniana penduliflora
- Couratari asterophora
- Couratari asterotricha
- Couratari prancei
- Eschweilera amplexifolia
- Eschweilera compressa
- Gustavia latifolia
- Gustavia longifuniculata
- Napoleonaea lutea
- Napoleonaea reptans
Subspecies
Polygalales[]
Species
- Malpighia proctorii
- Polygala helenae
- Polygala quitensis (possibly extinct)
- Polygala sinisica
- Pteromonnina fosbergii
- Stigmaphyllon nudiflorum
- (possibly extinct)
- Vochysia aurifera
Subspecies
Santalales[]
Species
- Agelanthus rondensis (possibly extinct)
- Exocarpos luteolus
- (possibly extinct)
- Olax psittacorum
- Phoradendron aequatoris
Varieties
Proteales[]
Species
- Helicia peltata
- Helicia polyosmoides
- Helicia subcordata
- Stenocarpus villosus
Subspecies
Dipsacales[]
- Centranthus amazonum
- Cephalaria anatolica, Anatolian cephalaria
- Nardostachys jatamansi
- Viburnum divaricatum (possibly extinct)
- Viburnum hondurense
- Viburnum molinae
- Viburnum subpubescens
Plumbaginales[]
- Armeria berlengensis
Rubiales[]
Species
- Arachnothryx chimboracensis
- Belonophora ongensis
- Coprosma laevigata, Rarotongan coprosma
- Diplospora erythrospora
- Exostema orbiculatum
- Gaertnera hirtiflora
- Gaertnera longifolia
- Gaertnera truncata
- Gardenia anapetes
- Gardenia brighamii, Hawaiian gardenia
- Gardenia candida
- Gardenia mannii, Mann's gardenia
- Gonzalagunia bifida
- Gonzalagunia dodsonii
- Gonzalagunia mollis
- Guettarda longiflora
- (possibly extinct)
- Ixora johnsonii
- Kadua coriacea
- Kadua degeneri
- (possibly extinct in the wild)
- Kadua laxiflora
- Kadua parvula
- Kadua st-johnii
- Keetia bakossii
- Ladenbergia rubiginosa
- Lasianthus rhinophyllus
- Machaonia woodburyana
- Manettia canescens (possibly extinct)
- Manettia holwayi (possibly extinct)
- Manettia nebulosa
- Nauclea gageana
- Nesohedyotis arborea, St Helena dogwood
- Oxyanthus okuensis
- Pavetta kupensis
- Pavetta rubentifolia
- Pentagonia orthoneura (possibly extinct)
- Pentagonia peruviana
- Portlandia albiflora
- Prismatomeris andamanica
- Psychotria bimbiensis
- Psychotria bryonicola
- Psychotria danceri
- Psychotria grantii
- Psychotria hanoverensis
- Psychotria minimicalyx
- Psychotria moliwensis
- Psychotria moseskemei
- Psychotria sodiroi
- Psychotria speciosa
- Psychotria tahitensis
- Psychotria trichocalyx
- Psychotria whistleri, Rarotonga psychotria
- Ramosmania rodriguesi
- , Pribby
- Rondeletia cincta
- Rothmannia annae, Wright's gardenia
- Simira standleyi
- Stelechantha arcuata
- Timonius jambosella
- Tinadendron noumeanum
- Uncaria thwaitesii
- Wendlandia andamanica
Subspecies
Varieties
- , Red berry
Violales[]
Species
- Banara vanderbiltii
- Casearia mauritiana
- Casearia williamsiana
- Frankenia portulacifolia, St Helena tea plant
- Gloeospermum boreale
- Hoplestigma pierreanum
- Isodendrion laurifolium
- Isodendrion pyrifolium
- Nasa ferox
- Rinorea marginata
- Rinorea maximiliani
- Viola helenae
- Viola hispida
- Viola ucriana
- Xylosma capillipes
- Xylosma crenatum
- Xylosma pachyphyllum, Spiny logwood
- Xylosma peltatum
- Xylosma pininsulare
- Xylosma serrata (possibly extinct)
Subspecies
Euphorbiales[]
There are 74 species, two subspecies, and ten varieties in Euphorbiales assessed as critically endangered.
Peraceae[]
Buxaceae[]
- Buxus vahlii, Vahl's boxwood
Euphorbiaceae[]
Species
- Acalypha ecuadorica
- Acalypha eggersii
- Acalypha raivavensis
- Agrostistachys hookeri
- Amanoa anomala
- Aporosa fusiformis
- Croton lawianus
- Euphorbia alcicornis (possibly extinct)
- Euphorbia ankazobensis
- Euphorbia berorohae
- Euphorbia boinensis (possibly extinct)
- Euphorbia capmanambatoensis
- Euphorbia cap-saintemariensis
- Euphorbia deppeana
- Euphorbia eleanoriae
- Euphorbia francoisii
- Euphorbia geroldii
- Euphorbia halemanui
- Euphorbia heleniana, French grass
- Euphorbia herbstii
- Euphorbia iharanae
- Euphorbia kondoi
- Euphorbia labatii
- Euphorbia margalidiana
- Euphorbia millotii
- (possibly extinct)
- Euphorbia origanoides, Ascension spurge
- Euphorbia pachypodioides
- Euphorbia parvicyathophora
- Euphorbia pirahazo (possibly extinct)
- Euphorbia quitensis
- Euphorbia razafindratsirae
- Euphorbia remyi
- Euphorbia robivelonae
- Euphorbia rockii
- Euphorbia stygiana
- Euphorbia tanaensis
- Euphorbia tulearensis
- Flueggea elliptica
- Flueggea neowawraea
- Glochidion papenooense
- Hieronyma crassistipula
- Koilodepas ferrugineum
- Macaranga raivavaeensis
- Mallotus smilaciformis
- Ostodes minor
- Phyllanthus caesiifolius
- Phyllanthus millei
- Phyllanthus nyale
- Phyllanthus revaughanii
- Podadenia thwaitesii
- Pseudoglochidion anamalayanum
- Sauropus assimilis
- Sauropus elegantissimus
- Sebastiania crenulata
- Sebastiania howardiana
- Tetrorchidium microphyllum
- Trigonostemon cherrieri
- Victorinia regina
Subspecies
Varieties
Laurales[]
There are 40 species in the order Laurales assessed as critically endangered.
Monimiaceae[]
- Hortonia angustifolia
- Mollinedia butleriana
- Mollinedia gilgiana
- Mollinedia lamprophylla
- Mollinedia ruae
- Tambourissa cocottensis
- Tambourissa pedicellata
Hernandiaceae[]
- Hernandia cubensis
- Hernandia temarii
Lauraceae[]
- Actinodaphne cuspidata
- Actinodaphne lanata
- Aniba pedicellata
- (possibly extinct)
- Beilschmiedia penangiana
- Beilschmiedia preussii
- Cinnamomum walaiwarense
- Cryptocarya ferrarsii
- Hexapora curtisii
- Litsea scortechinii
- Nectandra caudatoacuminata
- Nectandra debilis
- Nectandra minima
- Nectandra pulchra
- Nothaphoebe javanica
- Ocotea harrisii
- Ocotea lancilimba
- Ocotea pachypoda
- Pleurothyrium roberto-andinoi
Cucurbitales[]
Species
- Begonia asympeltata
- Begonia salaziensis
Subspecies
Ebenales[]
There are 45 species in Ebenales assessed as critically endangered.
Symplocaceae[]
- Symplocos molinae
- Symplocos versicolor
Sapotaceae[]
- Aubregrinia taiensis
- Autranella congolensis
- Leptostylis goroensis
- Madhuca boerlageana
- Manilkara gonavensis
- Manilkara spectabilis
- Micropholis caudata
- Micropholis grandiflora
- Micropholis macrophylla
- Palaquium laevifolium
- Pouteria capacifolia
- Pouteria cinnamomea
- Pouteria espinae
- Pouteria euryphylla
- Pouteria gigantea
- Pouteria pachycalyx
- Pouteria pallens
- Pouteria polysepala
- Pouteria subsessilifolia
- Pradosia decipiens
- Pradosia verrucosa
- Sideroxylon retinerve
- Sideroxylon rubiginosum
- Synsepalum brenanii
Ebenaceae[]
- Diospyros egrettarum
- (possibly extinct)
- Diospyros vaccinioides, Small persimmon
Styracaceae[]
- Styrax portoricensis
Celastrales[]
There are 29 species and two subspecies in the order Celastrales assessed as critically endangered.
Icacinaceae[]
- Grisollea thomassetii
- Pennantia baylisiana, Three kings kaikomako
- Urandra apicalis
Hollies[]
Species
- Ilex cookii, Cook's holly
- Ilex khasiana
- Ilex machilifolia
- Ilex maclurei
- Ilex perlata
- Ilex reticulata
- Ilex subtriflora
- Ilex williamsii
Subspecies
Celastraceae[]
- Bhesa nitidissima
- Bhesa sinica
- Cassine koordersii
- Euonymus pallidifolia
- Maytenus eggersii
- Maytenus harrisii
- Maytenus manabiensis (possibly extinct)
- Maytenus williamsii
- Platypterocarpus tanganyikensis
- Tontelea hondurensis
Dichapetalaceae[]
Myrtales[]
There are 97 species and five varieties in the order Myrtales assessed as critically endangered.
Myrtaceae[]
Species
- Calycorectes schottianus
- Calyptranthes acutissima
- Calyptranthes arenicola
- Calyptranthes flavo-viridis
- Calyptranthes kiaerskovii
- Calyptranthes pozasiana
- Calyptranthes uniflora
- Eucalyptus recurva, Mongarlowe mallee
- Eugenia aboukirensis
- Eugenia acutissima
- Eugenia albida (possibly extinct)
- Eugenia arianae
- Eugenia bojeri
- Eugenia camptophylla
- Eugenia coyolensis
- Eugenia crassipetala
- Eugenia gageana
- Eugenia gilgii
- Eugenia guayaquilensis (possibly extinct)
- Eugenia hanoverensis
- Eugenia hastilis
- Eugenia insignis
- Eugenia kameruniana
- Eugenia kellyana
- Eugenia klossii
- Eugenia lancetillae
- Eugenia polypora
- Eugenia rendlei
- Eugenia rheophytica
- Eugenia scalarinervis
- (possibly extinct)
- Eugenia singampattiana
- Eugenia vaughanii
- Eugenia woodburyana
- Meteoromyrtus wynaadensis
- Metrosideros bartlettii, Bartlett's Rata
- Mitranthes macrophylla
- Myrcia paganii
- Myrcianthes ferreyrae
- Myrtus claraensis
- Plinia rupestris
- Psidium sintenisii
- Syzygium ampliflorum
- Syzygium andamanicum
- Syzygium courtallense
- Syzygium cyclophyllum
- Syzygium guehoi
- Syzygium manii
- Syzygium palghatense
- Syzygium phaeophyllum
- Syzygium phyllyraeoides
- Syzygium sylvestre
- Syzygium travancoricum
- Xanthostemon glaucus
Varieties
Melastomataceae[]
- Adelobotrys panamensis
- Astronidium floribundum
- Astronidium inflatum
- Astronidium kasiense
- Astronidium lepidotum
- Astronidium pallidiflorum
- Astronidium saulae
- Blakea granatensis
- Henriettea granularis
- Henriettea membranifolia
- Lijndenia brenanii (possibly extinct)
- Memecylon arnottianum
- Memecylon elegantulum
- Memecylon gardneri
- Memecylon myrtiforme
- Memecylon orbiculare
- Memecylon rhinophyllum
- Memecylon sisparense
- Meriania versicolor
- Miconia benoistii
- Miconia leandroides
- Miconia littlei
- Miconia longisetosa (possibly extinct)
- Miconia scabra (possibly extinct)
- Tessmannianthus carinatus
- Warneckea cordiformis
Combretaceae[]
Species
Varieties
- , Black mastic
Thymelaeaceae[]
- Aquilaria crassna
- Aquilaria rostrata
- Wikstroemia villosa, Hairy wikstroemia
Water caltrops[]
- , Colchis water-chestnut
Lythraceae[]
- Rotala malabarica
- Sonneratia griffithii
- Sonneratia hainanensis, Hainan sonneratia
- Tetrataxis salicifolia
Onagraceae[]
Sapindales[]
There are 70 species, three subspecies, and five varieties in the order Sapindales assessed as critically endangered.
Rutaceae[]
Species
- Calodendrum eickii
- Glycosmis crassifolia
- Halfordia papuana
- Melicope adscendens
- Melicope degeneri
- Melicope fatuhivensis
- Melicope haupuensis
- Melicope knudsenii, Knudsen's melicope
- Melicope lydgatei
- Melicope mucronulata
- Melicope quadrangularis, Four-angled pelea
- Melicope reflexa
- Melicope stonei
- Melicope zahlbruckneri, Zahlbruckner's melicope
- Oxanthera undulata
- Platydesma rostrata
- Ravenia swartziana
- Sarcomelicope glauca
- Spathelia coccinea
- Zanthoxylum heterophyllum
Subspecies
Varieties
Aceraceae[]
Species
- Acer hainanense
- Acer leipoense
Varieties
- , Taiwan trident maple
Sapindaceae[]
Species
- Alectryon macrococcus
- Allophylus hispidus
- Gongrospermum philippinense
- Guioa grandifoliola
- Guioa hospita
- Guioa palawanica
- Guioa parvifoliola
- Guioa reticulata
- Podonephelium subaequilaterum
- Talisia bullata
- Zollingeria borneensis
Varieties
Zygophyllaceae[]
Anacardiaceae[]
- Buchanania barberi
- Campnosperma seychellarum
- Mangifera campnospermoides
- Nothopegia aureo-fulva
- Nothopegia castanaefolia
- Poupartia borbonica
- Semecarpus ochracea
- Semecarpus pseudo-emarginata
- Sorindeia calantha
Meliaceae[]
Species
- Aglaia densitricha
- Aglaia evansensis
- Aglaia gracilis
- Aglaia heterotricha
- Aglaia mackiana
- Aglaia malabarica
- Aglaia pleuropteris
- Aglaia unifolia
- Guarea sprucei
- Trichilia florbranca
- Trichilia triacantha
- Walsura gardneri
Subspecies
Burseraceae[]
- Canarium whitei
- Commiphora wightii
Asterales[]
Species
- Achyrocline glandulosa
- Achyrocline mollis
- Aetheolaena hypoleuca (possibly extinct)
- Aetheolaena ledifolia (possibly extinct)
- Aetheolaena pichinchensis (possibly extinct)
- (possibly extinct)
- Anthemis glaberrima
- Argyroxiphium kauense, Kau silversword
- (possibly extinct)
- Aster quitensis (possibly extinct)
- Baccharis aretioides
- Baccharis fusca (possibly extinct)
- Bidens simplicifolia
- Bidens wiebkei
- Cadiscus aquaticus
- Calendula maritima, Sea marigold
- Centaurea akamantis, Akamas centaury
- Centaurea caroli-henrici, Karl-henrikh's centaury
- Centaurea demirizii, Demiriz's centaury
- Centaurea drabifolioides, Whitlow-grass-leaved centaury
- Centaurea leptophylla, Thin-leaved centaury
- Centaurea tamanianiae, Tamanyan's centaury
- , Vavilov's centaury
- Centaurodendron dracaenoides
- Centaurodendron palmiforme
- Cheirolophus crassifolius, Maltese centaury
- Commidendrum robustum, Gumwood
- Commidendrum rotundifolium, Bastard gumwood
- Commidendrum spurium, False gumwood
- (possibly extinct)
- Cylindrocline commersonii
- Dasphyllum lehmannii
- Dendroseris berteriana
- Dendroseris gigantea
- Dendroseris litoralis
- Dendroseris macrantha
- Dendroseris macrophylla
- Dendroseris marginata
- Dendroseris micrantha
- Dendroseris neriifolia
- Dendroseris pinnata
- Dendroseris pruinata
- Dendroseris regia
- Dicoma pretoriensis (possibly extinct)
- Dubautia herbstobatae
- Dubautia kalalauensis
- Dubautia kenwoodii (possibly extinct)
- Dubautia latifolia
- Dubautia pauciflorula
- Egletes humifusa (possibly extinct)
- Elaphandra retroflexa (possibly extinct)
- Erigeron adscendens
- Faujasiopsis reticulata
- Fitchia cordata
- Gazania thermalis
- Gnaphalium sodiroi
- Helichrysum artvinense, Artvinian everlasting
- Helichrysum melitense, Maltese everlasting
- Hesperomannia arborescens, Lanai hesperomannia
- Hesperomannia arbuscula, Maui hesperomannia
- Hesperomannia lydgatei, Kauai hesperomannia
- Hieracium debile
- Hieracium lucidum
- Hypochaeris oligocephala
- Jacobaea trapezuntina, Trapezuntian groundsel
- Jurinea akinfievii, Akinfiev's jurinea
- Lamyropsis microcephala
- Melanthera fauriei
- Melanthera kamolensis
- Melanthera micrantha
- Melanthera tenuifolia
- Melanthera waimeaensis
- Mikania andrei
- Mikania iserniana (possibly extinct)
- Mikania jamesonii
- Mikania seemannii (possibly extinct)
- Mikania stereolepis
- Mikania tafallana
- Monactis dubia
- Monarrhenus salicifolius
- Pericallis malvifolia
- Pladaroxylon leucadendron, He cabbage tree
- , Grossheimi's salsify
- , Ida's salsify
- , Adjarian psephellus
- , Awarian centaury
- Psiadia cataractae
- Remya montgomeryi
- Saussurea costus
- Scalesia divisa
- Scalesia gordilloi
- , Ketskhoveli's salsify
- , Kozlovskiy's salsify
- Senecio alboranicus
- Senecio lamarckianus
- (possibly extinct)
- , Araratian sow-thistle
- Talamancalia putcalensis
- , Sharp-stegium tansy
- Tetramolopium rockii
- , Makashvilis's goat's beard
- , Ochiauri's goat's beard
- Viguiera media
- Wedelia oxylepis
- Wilkesia hobdyi, Dwarf iliau
Subspecies
- Argyroxiphium sandwicense subsp. sandwicense, Mauna Kea silversword
Varieties
Magnoliales[]
There are 63 species and three subspecies in the order Magnoliales assessed as critically endangered.
Canellaceae[]
- Pleodendron macranthum
Magnoliaceae[]
Species
- Magnolia calimaensis
- Magnolia cararensis
- Magnolia cespedesii
- Magnolia colombiana
- Magnolia dixonii (possibly extinct)
- Magnolia ekmanii
- (possibly extinct)
- Magnolia espinalii
- Magnolia gustavii
- Magnolia jardinensis
- Magnolia katiorum
- Magnolia narinensis
- Magnolia omeiensis
- Magnolia pleiocarpa
- Magnolia polyhypsophylla
- Magnolia sinica
- Magnolia virolinensis
- Magnolia wolfii (possibly extinct in the wild)
- Magnolia zenii
Subspecies
Annonaceae[]
Species
- Alphonsea kingii
- Annona ecuadorensis
- Annona hystricoides
- Annona manabiensis
- Fissistigma tungfangense
- Mezzettia herveyana
- Monodora hastipetala
- Orophea yunnanensis
- Polyalthia glabra
- Polyalthia hirtifolia
- Polyalthia lancilimba
- Popowia pauciflora
- Popowia velutina
- Rollinia helosioides
- (possibly extinct)
- Xylopia amplexicaulis
- Xylopia lamarckii
Subspecies
Myristicaceae[]
- Horsfieldia iryaghedhi
- Horsfieldia sessilifolia
- Iryanthera megistocarpa
- Myristica yunnanensis
Capparales[]
There are 30 species and one variety in Capparales assessed as critically endangered.
Capparaceae[]
- Cadaba insularis
- Capparis mirifica
- Capparis panamensis
- Podandrogyne trichopus
- Steriphoma urbani (possibly extinct)
Cruciferae[]
Species
- Aethionema retsina
- Arabis kennedyae, Troodos rockcress
- Biscutella rotgesii
- Diplotaxis siettiana
- Draba ecuadoriana
- , Narmanian whitlow-grass
- Draba violacea
- Erysimum deflexum, Bent treacle mustard
- Erysimum kykkoticum
- , Narrow-limbed hornungia
- Lepidium arbuscula
- , Zangezurian pennycress
Varieties
- Aethionema grandiflorum var. sintenisii, Persian stonecress
Apiales[]
There are 51 species and two varieties in the order Apiales assessed as critically endangered.
Araliaceae[]
Species
- Megalopanax rex
- Merrilliopanax chinensis
- Meryta brachypoda
- Meryta salicifolia
- Oreopanax lehmannii
- Oreopanax lempiranus
- Osmoxylon mariannense
- Polyscias aemiliguineae
- Polyscias flynnii
- Polyscias gracilis
- Polyscias gymnocarpa, Koolau tetraplasandra
- Polyscias lionnetii
- Polyscias neraudiana
- Polyscias paniculata
- Polyscias racemosa
- Polyscias rodriguesiana
- Polyscias tahitensis
- Schefflera kuchingensis
- Schefflera marlipoensis
- Schefflera parvifoliolata
- Schefflera procumbens
- Schefflera rubriflora
Varieties
Umbelliferae[]
- Apium bermejoi
- Bupleurum dianthifolium
- Bupleurum elatum
- Bupleurum kakiskalae
- , Karsian chervil
- , Posofian chervil
- , Mervyn's giant fennel
- Horstrissea dolinicola
- Ligusticum huteri
- Naufraga balearica
- Niphogeton sprucei
- Sanicula mariversa
- Sanicula purpurea
Gentianales[]
There are 41 species, two subspecies, and one variety in the order Gentianales assessed as critically endangered.
Apocynaceae[]
- Amsonia orientalis, Blue star
- Anodendron rhinosporum
- (possibly extinct)
- Kibatalia longifolia
- Lepinia taitensis
- Mandevilla jamesonii
- Neisosperma thiollierei
- Ochrosia kilaueaensis
- Prestonia parvifolia
- Prestonia schumanniana (possibly extinct)
- Rauvolfia sachetiae
- Tabernaemontana apoda
Loganiaceae[]
Species
- Geniostoma clavigerum
- Labordia cyrtandrae
- Labordia helleri
- Strychnos tetragona
Varieties
Asclepiadaceae[]
Species
- Duvaliandra dioscoridis
- Goniostemma punctatum
- Matelea ecuadorensis (possibly extinct)
- Matelea orthoneura
- Matelea sprucei
- Metalepis gentryi
- Metalepis haughtii
- Metastelma anegadense
- Neoschumannia kamerunensis
- Pentastelma auritum
Subspecies
Gentianaceae[]
- Centaurium sebaeoides
- Exacum socotranum
Rosales[]
There are 48 species, two subspecies, and one variety in the order Rosales assessed as critically endangered.
Chrysobalanaceae[]
- Dactyladenia dichotoma
- Dactyladenia eketensis
- Dactyladenia johnstonei
- Licania chiriquiensis
Rosaceae[]
Species
- Cercocarpus traskiae, Catalina mahogany
- Crataegus darvasica
- , Turkish hawthorn
- , Zeidlits' five-fingers
- Prunus ernestii
- , Brovich's pear
- , Gergeranian pear
- Pyrus korshinskyi
- , Voronov's pear
- , Long-fruited brier
- , Takhtadjan's blackberry
- Sorbus decipiens
- Sorbus leptophylla, Thin-leaved whitebeam
- Sorbus leyana, Ley's whitebeam
- Sorbus maderensis
- Sorbus parumlobata
- Sorbus wilmottiana, Wilmott's whitebeam
Subspecies
Other Rosales[]
Species
- Aichryson dumosum
- Byblis gigantea
- Pittosporum coriaceum
- Pittosporum raivavaeense
- Pittosporum tanianum
- Pittosporum viridulatum
- Ribes sardoum, Sardinian currant
- , Artvinian rockfoil
- , Euxinian stonecrop
- Weinmannia exigua
- Weinmannia tinctoria
Varieties
Primulales[]
There are 28 species and one variety in Primulales assessed as critically endangered.
Myrsinaceae[]
- Ardisia byrsonimae
- Ardisia etindensis
- Ardisia oligantha
- Ardisia schlechteri
- Badula crassa
- Badula platyphylla
- Badula reticulata
- Gentlea molinae
- Myrsine andersonii
- Myrsine brownii
- Myrsine hartii
- Myrsine juddii
- Myrsine longifolia
- Myrsine mezii
- Myrsine ronuiensis
- Parathesis eggersiana
- Rapanea ceylanica
- Rapanea seychellarum
Theophrastaceae[]
Species
Varieties
Primulaceae[]
- Lysimachia daphnoides
- Lysimachia iniki
- Lysimachia lydgatei
- Lysimachia maxima
- Lysimachia pendens
- Lysimachia scopulensis
- Lysimachia venosa
- , Sinai primrose
Rhamnales[]
Species
- Auerodendron pauciflorum
- Colubrina oppositifolia
- Gouania meyenii
- Gouania vitifolia, Oahu chewstick
- Phylica polifolia, St Helena rosemary
- Reynosia jamaicensis
Varieties
Urticales[]
Species
- (possibly extinct)
- Ficus angladei
- Ficus lateriflora
- Maillardia pendula
- Neraudia angulata
- Neraudia ovata, Big Island ma'oloa
- Neraudia sericea
- Perebea glabrifolia
- Pilea cataractae
- Pilea laevicaulis
- Pilea pollicaris
- Pilea selbyanorum
- Pseudolmedia manabiensis
- Trilepisium gymnandrum
- Ulmus gaussenii
- Urera kaalae
- Zelkova sicula
Varieties
Solanales[]
Species
- Bonamia menziesii
- , Boxwood
- Nothocestrum breviflorum, Small-flowered nothocestrum
- Nothocestrum peltatum
- Nymphoides macrospermum
- Nymphoides sivarajanii
- Solanum dolichorhachis
- Solanum drymophilum
- Solanum incompletum
- Solanum lanuginosum
- Solanum ovum-fringillae
- Solanum semicoalitum (possibly extinct)
Varieties
Scrophulariales[]
There are 75 species, two subspecies, and one variety in the order Scrophulariales assessed as critically endangered.
Oleaceae[]
- Fraxinus americana (white ash or American ash)
- Fraxinus hondurensis
- Fraxinus pennsylvanica (green ash or red ash)
- Jasminum azoricum
- Linociera albidiflora
Gesneriaceae[]
Species
- Cyrtandra crenata (possibly extinct)
- Cyrtandra dentata
- Cyrtandra kaulantha, Waikane Valley cyrtandra
- , Te Manga cyrtandra
- Cyrtandra paliku
- Cyrtandra polyantha, Niu Valley cyrtandra
- , Rarotonga cyrtandra
- Cyrtandra subumbellata
- Cyrtandra viridiflora
- Gasteranthus atratus
- Gasteranthus extinctus
- Monopyle paniculata
- Primulina modesta
- Saintpaulia teitensis
- Saintpaulia ulugurensis
Subspecies
Varieties
Bignoniaceae[]
- Amphitecna spathicalyx
- Parmentiera morii
- (possibly extinct)
Acanthaceae[]
- Barleria observatrix
- Brachystephanus kupeensis
- Carlowrightia ecuadoriana
- Hygrophila madurensis
- Psilanthele eggersii
- Sanchezia lampra
- , Caroline's pink
Scrophulariaceae[]
- Agalinis kingsii
- Paulownia kawakamii
- , Capillary figwort
- , Decurrent mullein
- , Transcaucasian speedwell
- , Allahuekberian speedwell
Other Scrophulariales species[]
- Buddleja formosana
- Globularia ascanii
- Myoporum stokesii
Lamiales[]
There are 64 species and three varieties in the order Lamiales assessed as critically endangered.
Verbenaceae[]
- Aegiphila caymanensis
- Aegiphila glomerata
- Callicarpa ampla
- Cornutia obovata
- Gmelina lignum-vitreum
- Holmskioldia gigas
- Stachytarpheta svensonii
- Tectona philippinensis, Philippine teak
- Vitex yaundensis
Labiatae[]
Species
- Cuminia eriantha
- Cuminia fernandezia
- Hyptis argutifolia
- Hyptis diversifolia
- , Chorokhian dead nettle
- Phyllostegia hirsuta
- Phyllostegia hispida
- Phyllostegia kaalaensis
- (possibly extinct)
- Phyllostegia knudsenii (possibly extinct)
- Phyllostegia mollis
- Phyllostegia parviflora
- Phyllostegia renovans
- Phyllostegia waimeae
- Phyllostegia warshaueri
- Phyllostegia wawrana
- Plectranthus dissitiflorus
- (possibly extinct)
- Salvia caymanensis
- Salvia herbanica
- Salvia veneris, Kythrean sage
- , Rhomboid skullcap
- , Bayburt woundwort
- , Choruh woundwort
- , Sosnowsky's woundwort
- Stenogyne bifida (possibly extinct in the wild)
- Stenogyne campanulata (possibly extinct in the wild)
- Stenogyne kanehoana (possibly extinct in the wild)
- Stenogyne kealiae
Varieties
Boraginaceae[]
- Amsinckia marginata (possibly extinct)
- Gyrocaryum oppositifolium
- , Karsian nonea
- , Curved goldendrop
- , Black-stemmed goldendrop
- Solenanthus reverchonii
- , Savvalian comfrey
- Tournefortia obtusiflora (possibly extinct)
- Varronia bellonis
- Varronia rupicola
- , Wagners' cordia
Nepenthales[]
Species
- Drosera katangensis
- Nepenthes aristolochioides
- Nepenthes attenboroughii, Attenborough's pitcher plant
- Nepenthes clipeata
- Nepenthes dubia
- Nepenthes lavicola
- Nepenthes macrophylla
- Nepenthes rigidifolia
- Nepenthes sumatrana
- Nepenthes suratensis
- Sarracenia oreophila, Green pitcherplant
Subspecies
Ranunculales[]
Species
- Aquilegia barbaricina, Barbaricina colombine
- Aquilegia nuragica, Nuragica columbine
- Berberis nilghiriensis
- , Casey's larkspur
- , Larkspur
- , Larskpur
- Odontocarya perforata
- , Aragatsian buttercup
- , Buttercup
- , Worm-rooted buttercup
- Triclisia macrophylla
Varieties
Polygonales[]
- , Caspian knotweed
Podostemales[]
- (possibly extinct)
- Ledermanniella keayi
- Saxicolella marginalis
Fabales[]
Species
- Acacia anegadensis, Pokemeboy
- Acacia belairioides
- Acacia mathuataensis
- Acacia roigii
- (possibly extinct)
- Albizia vaughanii
- , Clusterspike false indigo
- Anthonotha leptorrhachis
- Astragalus acmophylloides, Sharp-leaved milk vetch
- Astragalus bylowae, Bylov's milk vetch
- Astragalus cavanillesii
- , Daghestanian milk vetch
- , Eliasian milk vetch
- , Long-flagged milk vetch
- , Big astragalus
- , Black-calyx milk vetch
- , Olurian milk vetch
- , Shakhbuzian milk vetch
- Astragalus schmolliae, Schmoll's milkvetch
- Astragalus sinuatus, Whited's milkvetch
- , Tatli's milk vetch
- , Trabzonian milk vetch
- Bauhinia seminarioi
- Browneopsis macrofoliolata
- Caesalpinia kavaiensis
- (possibly extinct)
- Canavalia molokaiensis, Molokai jack-bean
- Canavalia napaliensis
- Canavalia pubescens
- (possibly extinct)
- Chloroleucon tortum
- Chordospartium muritai, Coastal tree broom
- Clitoria andrei (possibly extinct)
- Crudia bibundina
- Cynometra falcata
- Cynometra filifera
- Cynometra gillmanii
- Dalbergia intibucana
- , Sabinal prairie-clover (possibly extinct)
- Delonix tomentosa (possibly extinct)
- Dialium travancoricum
- Dimorphandra wilsonii
- Eligmocarpus cynometroides
- Erythrina perrieri
- Erythrina schliebenii
- Erythrina tahitensis
- Gleditsia vestita
- Hymenostegia talbotii
- Inga enterolobioides
- Kanaloa kahoolawensis (possibly extinct in the wild)
- Kennedia retrorsa
- Lathyrus belinensis
- Lonchocarpus molinae
- Lonchocarpus phaseolifolius
- Lonchocarpus sanctuarii
- Lonchocarpus trifolius
- Lonchocarpus yoroensis
- , Armenian bird's foot trefoil
- Medicago citrina
- Microberlinia bisulcata
- (possibly extinct)
- Monopetalanthus hedinii
- Neoharmsia baronii
- Newtonia camerunensis
- Ormocarpopsis itremoensis
- Orphanodendron bernalii
- Parkia parrii
- , Bermuda bean
- Phaseolus rimbachii
- Phylloxylon arenicola
- Phylloxylon phillipsonii
- Phylloxylon xiphoclada
- Plagiosiphon longitubus
- Platymiscium albertinae
- (possibly extinct)
- Serianthes nelsonii
- Serianthes rurutensis
- Swartzia oraria
- Talbotiella gentii
- Terua vallicola
- Thermopsis turcica
- , Bobrov's clover
- , Erzurumian vetch
- Vicia menziesii, Hawaiian vetch
- , Quadrijugous vetch
- Vouacapoua americana
- Zornia vaughaniana
Subspecies
- , Lefkara milk-vetch
Varieties
Caryophyllales[]
There are 145 species, two subspecies, and one variety in the order Caryophyllales assessed as critically endangered.
Caryophyllaceae[]
Species
- Allochrusa takhtajanii, Takhtadjyan's allochrusa
- Alsinidendron lychnoides
- Alsinidendron obovatum
- Alsinidendron trinerve, Three nerved alsinidendron
- Alsinidendron viscosum, Climbing alsinidendron
- Arenaria bolosii
- Arenaria nevadensis
- Arenaria radians
- , Takhtadjyan's bufonia
- Drymaria monticola
- Minuartia dirphya
- Saponaria jagelii
- Schiedea adamantis
- Schiedea apokremnos
- Schiedea attenuata (possibly extinct in the wild)
- Schiedea haleakalensis
- Schiedea helleri
- Schiedea hookeri
- Schiedea kaalae
- Schiedea kauaiensis
- Schiedea kealiae
- Schiedea membranacea
- Schiedea nuttallii
- Schiedea stellarioides
- Schiedea viscosa
- Silene alexandri
- , Khustup campion
- Silene gazulensis
- , Ispirian catchfly
- Silene perlmanii (possibly extinct in the wild)
Subspecies
Cactus[]
Species
- Acharagma aguirreanum
- Astrophytum caput-medusae
- Consolea corallicola, Florida semaphore cactus
- (possibly extinct in the wild)
- Echinocereus nivosus
- Eriosyce chilensis
- Gymnocalycium ragonesei
- Leptocereus grantianus
- Mammillaria albiflora
- Mammillaria anniana
- Mammillaria carmenae
- Mammillaria duwei
- Mammillaria glochidiata
- Mammillaria herrerae, Golf ball
- Mammillaria laui
- Mammillaria marcosii
- Mammillaria pennispinosa
- Mammillaria sanchez-mejoradae
- Mammillaria schwarzii
- Mammillaria zeilmanniana
- Melocactus conoideus
- Micranthocereus streckeri
- Mirabella estevesii (possibly extinct in the wild)
- Opuntia abjecta
- Opuntia chaffeyi
- Parodia arnostiana
- Parodia buiningii
- Parodia crassigibba
- Parodia herteri
- Pediocactus knowltonii, Knowlton's cactus
- Pereskia quisqueyana
- Pilosocereus azulensis
- Pygmaeocereus bylesianus
- Rhipsalis mesembryanthemoides
- Sclerocactus brevispinus, Pariette cactus
- Turbinicarpus alonsoi
- Turbinicarpus gielsdorfianus
- Turbinicarpus hoferi
- Turbinicarpus laui
- Turbinicarpus mandragora
- Turbinicarpus swobodae
- Uebelmannia buiningii
Subspecies
Other Caryophyllales[]
Species
- Achyranthes mutica, Blunt chaff flower
- Amaranthus brownii
- Atriplex plebeja
- Charpentiera densiflora, Dense-flowered charpentiera
- , Maltase cliff-orache
- Kewa acida, Salad plant
- Khadia beswickii
- Pisonia graciliscens
Varieties
Fagales[]
Species
- (possibly extinct)
- Betula chichibuensis, Chichibu birch
- (possibly extinct)
- Betula halophila
- Betula klokovii
- Betula murrayana, Murray birch
- Carpinus putoensis, Puto hornbeam
- Castanea dentata, American Chestnut
- Castanopsis catappaefolia
- Cyclobalanopsis repandifolia
- Nothofagus nuda
- Ostrya chisosensis, Chisos hop-hornbeam
- Ostrya rehderiana
- Pasania formosana
- Quercus boyntonii, Boynton oak
- Quercus graciliformis, Slender oak
- Quercus hinckleyi, Hinckley's oak
- Quercus hintonii
- Quercus tardifolia, Chisos Mountains oak
Subspecies
- , Virginia round-leaf birch
Other dicotyledons[]
Species
- Bruguiera hainesii
- Callitriche pulchra
- Cassipourea eketensis
- Cassipourea subcordata
- Cassipourea subsessilis
- Dillenia triquetra
- Linum cratericola, Floreana flax
- Melanophylla angustior
- Melanophylla perrieri
- Molinadendron hondurense
- Myrica rivas-martinezii
- Nyssa yunnanensis
- Plantago robusta, St Helena plantain
- Rafflesia magnifica
- Rhododendron wilhelminae
- Rhodothamnus sessilifolius, Sessile-leaved rhodothamnus
- Salix tarraconensis
- Schumacheria alnifolia
- Swida darvasica
Varieties
Monocotyledons[]
There are 421 species, six subspecies, and five varieties of monocotyledon assessed as critically endangered.
Arecales[]
Species
- Acanthophoenix rubra
- Asterogyne yaracuyense
- Astrocaryum minus
- Attalea crassispatha
- Bactris nancibaensis
- Balaka macrocarpa
- Calamus compsostachys
- Calamus obovoideus
- Calamus wailong
- Carpoxylon macrospermum
- Ceroxylon sasaimae
- Coccothrinax borhidiana
- Cryosophila cookii
- Cryosophila grayumii
- Cyphophoenix nucele
- Cyphosperma tanga
- Drymophloeus samoensis
- Dypsis ambanjae
- Dypsis ambositrae
- Dypsis ampasindavae
- Dypsis antanambensis
- Dypsis arenarum
- Dypsis basilonga
- Dypsis brevicaulis
- (possibly extinct)
- Dypsis canaliculata
- Dypsis carlsmithii
- Dypsis hovomantsina
- Dypsis humilis
- Dypsis ifanadianae
- Dypsis intermedia
- Dypsis interrupta
- Dypsis mangorensis
- Dypsis nauseosa
- Dypsis nossibensis
- Dypsis oropedionis
- Dypsis ovobontsira
- Dypsis sahanofensis
- Dypsis singularis
- Hemithrinax ekmaniana
- Hyophorbe amaricaulis
- Hyophorbe lagenicaulis, Bottle palm
- Hyophorbe vaughanii
- Hyophorbe verschaffeltii
- Lavoixia macrocarpa
- Loxococcus rupicola
- Masoala madagascariensis
- Medemia argun
- Pelagodoxa henryana
- Pinanga tashiroi
- Pritchardia affinis
- Pritchardia aylmer-robinsonii
- Pritchardia hardyi
- Pritchardia kaalae
- Pritchardia limahuliensis
- Pritchardia munroi
- Pritchardia napaliensis
- Pritchardia schattaueri
- Pritchardia viscosa
- Pritchardiopsis jeanneneyi
- Pseudophoenix ekmanii
- Pseudophoenix lediniana
- Ravenea beentjei
- Ravenea delicatula
- Ravenea hypoleuca
- Ravenea lakatra
- Ravenea latisecta
- Ravenea louvelii
- Ravenea moorei
- Ravenea musicalis
- Tahina spectabilis, Tahina palm
- Tectiphiala ferox
- Voanioala gerardii
Varieties
- , Hurricane palm
Orchidales[]
There are 167 species and one subspecies in Orchidales assessed as critically endangered.
Orchidaceae[]
Species
- Aeranthes albidiflora (possibly extinct)
- Amesiella monticola
- (possibly extinct)
- (possibly extinct)
- (possibly extinct)
- (possibly extinct)
- (possibly extinct)
- (possibly extinct)
- (possibly extinct)
- (possibly extinct)
- , Clifton's anguloa
- Ascoglossum calopterum
- (possibly extinct)
- Bulbophyllum ceriodorum
- Bulbophyllum erythroglossum (possibly extinct)
- Bulbophyllum filiforme
- Bulbophyllum hirsutiusculum (possibly extinct)
- Bulbophyllum kupense
- Bulbophyllum minax (possibly extinct)
- Bulbophyllum moratii
- Bulbophyllum sanguineum (possibly extinct)
- Bulbophyllum tampoketsense (possibly extinct)
- Bulbophyllum zaratananae (possibly extinct)
- Ceratocentron fesselii
- Corybas dienemus, Windswept helmet orchid
- (possibly extinct)
- (possibly extinct)
- (possibly extinct)
- (possibly extinct)
- (possibly extinct)
- Cypripedium froschii
- , Malipo cypripedium
- , Segawa's cypripedium
- , Mt Taibai cypripedium
- (possibly extinct)
- (possibly extinct)
- (possibly extinct)
- Diuris byronensis, Byron Bay donkey orchid
- , Montserrat orchid
- (possibly extinct)
- Gastrochilus calceolaris
- Gastrodia africana
- Gastrodia zeylanica
- Genyorchis platybulbon
- Habenaria maitlandii
- Hexalectris revoluta, Chisos mountain crested coralroot
- Holopogon gaudissartii
- Liparis goodyeroides
- Malaxis bayardii, Bayard's adder's-mouth orchid
- , Apparition masdevallia
- Mexipedium xerophyticum, Dry-growing mexipedium
- Ossiculum aurantiacum
- Paphiopedilum adductum
- Paphiopedilum bougainvilleanum, Bougainville paphiopedilum
- Paphiopedilum dayanum, Day's paphiopedilum
- Paphiopedilum delenatii, Delanat's paphiopedilum
- Paphiopedilum druryi, Drury's paphiopedilum
- Paphiopedilum emersonii, Emerson's paphiopedilum
- Paphiopedilum exul, Excluded paphiopedilum
- Paphiopedilum fairrieanum, Fairrie's paphiopedilum
- Paphiopedilum fowliei, Fowlie's paphiopedilum
- , Giant-leaf paphiopedilum
- Paphiopedilum gratrixianum, Gratix's paphiopedilum
- , Hang's paphiopedilum
- Paphiopedilum helenae, Ellen's paphiopedilum
- Paphiopedilum henryanum, Henry's paphiopedilum
- , Inamori's paphiopedilum
- , Intani paphiopedilum
- Paphiopedilum kolopakingii, Kolopaking's paphiopedilum
- , Lawrence's paphiopedilum
- Paphiopedilum liemianum, Liem's paphiopedilum
- Paphiopedilum micranthum, Tiny flowered paphiopedilum
- Paphiopedilum ooii, Ooi's paphiopedilum
- , Parnata's paphiopedilum
- , Broad-leaf paphiopedilum
- Paphiopedilum primulinum, Primrose yellow paphiopedilum
- Paphiopedilum purpuratum, Purple paphiopedilum
- Paphiopedilum rothschildianum, Rothschild's paphiopedilum
- Paphiopedilum sanderianum, Sander's paphiopedilum
- Paphiopedilum sangii, Sang's paphiopedilum
- , Schoser's paphiopedilum
- Paphiopedilum stonei, Stone's paphiopedilum
- , Sugiyama's paphiopedilum
- Paphiopedilum sukhakulii, Sukhakul's paphiopedilum
- , Supard's paphiopedilum
- , Thai paphiopediulum
- Paphiopedilum tranlienianum, Tran's paphiopedilum
- Paphiopedilum urbanianum, Urban's paphiopedilum
- Paphiopedilum victoria-mariae, Virgin Mary paphiopedilum
- Paphiopedilum victoria-regina, Queen Victoria paphiopedilum
- Paphiopedilum vietnamense, Vietnamese paphiopedilum
- Paphiopedilum wenshanense, Wenshan paphiopedilum
- Paphiopedilum wentworthianum, Wentworth's paphiopedilum
- Peristylus holochila
- Phalaenopsis hainanensis
- Phalaenopsis micholitzii
- , Christiansen's phragmipedium
- , Dalessandro's phragmipedium
- , Without a staminoda phragmipedium
- Phragmipedium fischeri, Fischer's phragmipedium
- Phragmipedium kovachii, Kovach's phragmipedium
- , Manzur's phragmipedium
- Phragmipedium richteri, Richter's phragmipedium
- Phragmipedium tetzlaffianum, Tetzlaff's phragmipedium
- (possibly extinct)
- (possibly extinct)
- Polystachya kupensis
- (possibly extinct)
- (possibly extinct)
- Polystachya victoriae
- Prasophyllum favonium, Western leek orchid
- Serapias stenopetala
- (possibly extinct)
- Zeuxine rolfiana
Subspecies
Burmanniaceae[]
- Afrothismia baerae
- Afrothismia pachyantha
- Afrothismia winkleri
- Oxygyne shinzatoi
- Oxygyne triandra
Pandanales[]
- Pandanus carmichaelii
- Pandanus microcarpus
- Pandanus palustris
- Pandanus pyramidalis
- Pandanus verecundus
Bromeliales[]
- Aechmea cymosopaniculata (possibly extinct)
- Cryptanthus diamantinensis
- Guzmania lepidota (possibly extinct)
- Guzmania poortmanii (possibly extinct)
- Guzmania striata (possibly extinct)
- , Old George
- Pitcairnia elliptica
- Puya compacta
- Puya exigua
- Tillandsia dyeriana
- Tillandsia yerba-santae
Liliales[]
Species
- Allium baytopiorum, Baytop's onion
- Allium corsicum
- Allium czelghauricum, Czelghaurian onion
- Aloe dorotheae
- Aloe flexilifolia
- Aloe helenae
- Aloe jucunda
- Aloe pembana
- Aloe suzannae
- Aloidendron pillansii (as Aloe pillansii), Bastard quiver tree
- Astelia waialealae
- Bomarea angustifolia
- Bomarea goniocaulon
- Bomarea graminifolia
- Bomarea hartwegii
- Bomarea longipes
- Borderea chouardii
- Brimeura duvigneaudii
- Chlorophytum borivilianum
- , Greuter's colchicum
- , Thin-flowered colchicum
- Dioscorea strydomiana
- Fritillaria grandiflora, Big-flowered fritillary
- Gagea antakiensis, Antakya gagea
- Iris antilibanotica
- Iris atropurpurea, Coastal iris
- Iris boissieri
- Iris cedreti
- Iris damascena
- Iris nusairiensis
- Lilium polyphyllum
- Ornithogalum gabrielianiae, Gabrielyan's starflowers
- Scilla morrisii, Morris squill
- Tulipa gumusanica, Gumushanian tulip
Subspecies
Arales[]
Araceae[]
Species
- Alocasia sanderiana, Sander's alocasia
- Alocasia sinuata, Alocasia quilted dreams
- Anthurium coerulescens
- Anthurium eggersii
- Anthurium linguifolium
- Anthurium tenuicaule
- Philodendron balaoanum (possibly extinct)
- Philodendron cruentospathum
- Philodendron nanegalense
- Philodendron pogonocaule
- Syngonium dodsonianum
Subspecies
Zingiberales[]
- Calathea dodsonii
- Calathea petersenii
- Costus barbatus
- (possibly extinct in the wild)
- Smithatris supraneanae
Eriocaulales[]
- Eriocaulon bolei
- Eriocaulon ratnagiricum
- Eriocaulon rouxianum
- Eriocaulon santapaui
- Eriocaulon sharmae
- Eriocaulon sivarajanii
Commelinales[]
- Xyris andina
Cyperales[]
There are 37 species, two subspecies, and two varieties in Cyperales assessed as critically endangered.
Gramineae[]
Species
- Andropogon benthamianus (possibly extinct)
- Cenchrus agrimonioides
- Eragrostis episcopulus, Cliff hair grass
- Garnotia cheesemanii, Rarotongan garnotia grass
- Isachne meeboldii
- Isachne veldkampii
- Ischaemum jayachandranii
- Panicum niihauense
- (possibly extinct)
- Panicum socotranum
- Poa mannii
- Poa siphonoglossa
- Sporobolus caespitosus
- Stipa tulcanensis
Subspecies
Varieties
Cyperaceae[]
Species
- Bulbostylis neglecta, Neglected tuft sedge
- Carex collifera
- Carex lepida
- Carex tessellata
- Cyperus chionocephalus (possibly extinct)
- Cyperus flavoculmis
- Cyperus grandifolius
- Cyperus microcristatus
- Cyperus microumbellatus
- Cyperus multifolius (possibly extinct)
- (possibly extinct)
- Fimbristylis hirsutifolia
- Hypolytrum subcompositus
Varieties
Other monocotyledons[]
Species
- Asplundia clementinae
- Asplundia lutea
- Kupea martinetugei
Subspecies
See also[]
- Lists of IUCN Red List critically endangered species
- List of least concern plants
- List of near threatened plants
- List of vulnerable plants
- List of endangered plants
- List of recently extinct plants
- List of data deficient plants
References[]
- ^ "IUCN Red List version 2016-2". The IUCN Red List of Threatened Species. International Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 8 September 2016.
- ^ "Table 9: Possibly Extinct and Possibly Extinct in the Wild Species (IUCN Red List version 2016-2)". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 8 September 2016.
- ^ "Limitations of the Data". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 11 January 2016.
- ^ "2001 Categories & Criteria (version 3.1)". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 11 January 2016.
- ^ Farjon, A. (2013). "Pinus torreyana subsp. torreyana". IUCN Red List of Threatened Species. 2013: e.T34015A2840365. doi:10.2305/IUCN.UK.2013-1.RLTS.T34015A2840365.en. Retrieved 27 September 2020.
Categories:
- Critically endangered plants
- IUCN Red List critically endangered species
- Lists of plants by conservation status