Supriya Ghosh (Editor)

List of critically endangered plants

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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. 11% of all evaluated plant species are listed as critically endangered. The IUCN also lists 89 subspecies and 70 varieties as critically endangered.

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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. 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."

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.

Bryophytes

There are 23 bryophyte species assessed as critically endangered.

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
Dryopteridaceae

Species

Varieties

Other Polypodiales species

Salviniales

  • Marsilea fadeniana

    • Gymnosperms

    There are 81 species, five subspecies, and 13 varieties of gymnosperm assessed as critically endangered.

    Cycads

    Species

    Subspecies

    Conifers

    Species

    Subspecies

  • Abies delavayi subsp. fansipanensis, Fansipan fir
  • Pinus torreyana subsp. torreyana

    • Varieties

    Dicotyledons

    There are 1895 species, 78 subspecies, and 49 varieties of dicotyledon assessed as critically endangered.

    Piperaceae

    Species

    Varieties

  • Piper amalago var. variifolium

    • Campanulales

    There are 62 species and 12 subspecies in Campanulales assessed as critically endangered.

    Campanulaceae

    Species

    Subspecies

    Goodeniaceae

  • Scaevola socotraensis

    • Theales

    There are 295 species and 23 subspecies in Theales assessed as critically endangered.

    Dipterocarpaceae

    Species

    Subspecies

    Malvales

    Species

    Subspecies

  • Elaeocarpus submonoceras subsp. oliganthus
  • Hibiscus waimeae subsp. hannerae

    • Varieties

  • Bombax insigne var. polystemon

    • Lecythidales

    Species

    Subspecies

  • Eschweilera piresii subsp. viridipetala

    • Polygalales

    Species

    Subspecies

  • Byrsonima nemoralis subsp. dressleri

    • Santalales

    Species

    Varieties

  • Santalum insulare var. margaretae
  • Santalum insulare var. raivavense

    • Proteales

    Species

    Subspecies

  • Elaeagnus conferta subsp. dendroidea

    • Rubiales

    Species

    Subspecies

    Varieties

  • Chassalia coriacea var. johnstonii
  • Coprosma rapensis var. benefica, Red berry

    • Violales

    Species

    Subspecies

  • Cistus heterophyllus subsp. carthaginensis
  • Viola chamissoniana subsp. chamissoniana

    • Euphorbiales

    There are 74 species, two subspecies, and ten varieties in Euphorbiales assessed as critically endangered.

    Peraceae

  • Chaetocarpus pubescens

    • Buxaceae

  • Buxus vahlii, Vahl's boxwood

    • Euphorbiaceae

    Species

    Subspecies

  • Euphorbia cylindrifolia subsp. tuberifera
  • Euphorbia stenoclada subsp. ambatofinandranae

    • Varieties

    Laurales

    There are 40 species in the order Laurales assessed as critically endangered.

    Hernandiaceae

  • Hernandia cubensis
  • Hernandia temarii

    • Cucurbitales

    Species

    Subspecies

  • Begonia quadrialata subsp. dusenii

    • Ebenales

    There are 45 species in Ebenales assessed as critically endangered.

    Symplocaceae

  • Symplocos molinae
  • Symplocos versicolor

    • Styracaceae

  • Styrax portoricensis

    • Celastrales

    There are 29 species and two subspecies in the order Celastrales assessed as critically endangered.

    Hollies

    Species

    Subspecies

  • Ilex perado subsp. iberica
  • Ilex perado subsp. lopezlilloi

    • Dichapetalaceae

  • Dichapetalum korupinum
  • Dichapetalum letouzeyi

    • Myrtales

    There are 97 species and five varieties in the order Myrtales assessed as critically endangered.

    Myrtaceae

    Species

    Varieties

  • Eugenia harrisii var. grandifolia
  • Myrrhinium atropurpureum var. atropurpureum

    • Combretaceae

    Species

  • Combretum tenuipetiolatum

    • Varieties

    Water caltrops

  • Trapa colchica, Colchis water-chestnut

    • Onagraceae

  • Epilobium numidicum

    • Sapindales

    There are 70 species, three subspecies, and five varieties in the order Sapindales assessed as critically endangered.

    Rutaceae

    Species

    Subspecies

  • Pilocarpus goudotianus subsp. heterochromus

    • Varieties

  • Zanthoxylum dipetalum var. tomentosum

    • Aceraceae

    Species

  • Acer hainanense
  • Acer leipoense

    • Varieties

  • Acer buergerianum var. formosanum, Taiwan trident maple
  • Acer oblongum var. membranaceum

    • Sapindaceae

    Species

    Varieties

  • Alectryon macrococcus var. auwahiensis
  • Alectryon macrococcus var. macrococcus

    • Meliaceae

    Species

    Subspecies

  • Trichilia trifolia subsp. pteleaefolia
  • Turraea mombassana subsp. schliebenii

    • Burseraceae

  • Canarium whitei
  • Commiphora wightii

    • Asterales

    Species

    Subspecies

    Varieties

    Magnoliales

    There are 63 species and three subspecies in the order Magnoliales assessed as critically endangered.

    Canellaceae

  • Pleodendron macranthum

    • Magnoliaceae

    Species

    Subspecies

  • Magnolia cubensis subsp. acunae
  • Magnolia virginiana subsp. oviedoae

    • Annonaceae

    Species

    Subspecies

  • Artabotrys modestus subsp. modestus

    • Capparales

    There are 30 species and one variety in Capparales assessed as critically endangered.

    Cruciferae

    Species

    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

    Varieties

  • Polyscias sechellarum var. contracta
  • Polyscias sechellarum var. curiosae

    • Gentianales

    There are 41 species, two subspecies, and one variety in the order Gentianales assessed as critically endangered.

    Loganiaceae

    Species

    Varieties

  • Labordia tinifolia var. wahiawaensis

    • Asclepiadaceae

    Species

    Subspecies

  • Ceropegia decidua subsp. pretoriensis
  • Pentarrhinum abyssinicum subsp. ijimense

    • Rosales

    There are 48 species, two subspecies, and one variety in the order Rosales assessed as critically endangered.

    Rosaceae

    Species

    Subspecies

  • Alchemilla fischeri subsp. camerunensis
  • Polylepis tomentella subsp. nana

    • Other Rosales

    Species

    Varieties

  • Geissois ternata var. serrata

    • Primulales

    There are 28 species and one variety in Primulales assessed as critically endangered.

    Theophrastaceae

    Species

  • Clavija parvula

    • Varieties

  • Jacquinia macrantha var. clarendonensis

    • Rhamnales

    Species

    Varieties

  • Cayratia pedata var. glabra

    • Urticales

    Species

    Varieties

  • Neraudia angulata var. angulata
  • Neraudia angulata var. dentata

    • Solanales

    Species

    Varieties

  • Ipomoea prismatosyphon var. trifida

    • Scrophulariales

    There are 75 species, two subspecies, and one variety in the order Scrophulariales assessed as critically endangered.

    Gesneriaceae

    Species

    Subspecies

  • Saintpaulia ionantha subsp. grandifolia
  • Saintpaulia ionantha subsp. rupicola

    • Varieties

  • Gesneria scabra var. fawcettii

    • Lamiales

    There are 64 species and three varieties in the order Lamiales assessed as critically endangered.

    Labiatae

    Species

    Varieties

    Nepenthales

    Species

    Subspecies

  • Sarracenia rubra subsp. alabamensis

    • Ranunculales

    Species

    Varieties

  • Cissampelos nigrescens var. cardiophylla

    • Fabales

    Species

    Subspecies

  • Astragalus macrocarpus subsp. lefkarensis, Lefkara milk-vetch

    • Varieties

  • Humboldtia unijuga var. trijuga

    • Caryophyllales

    There are 145 species, two subspecies, and one variety in the order Caryophyllales assessed as critically endangered.

    Caryophyllaceae

    Species

    Subspecies

  • Moehringia intricata subsp. tejedensis

    • Cactus

    Species

    Subspecies

  • Ariocarpus bravoanus subsp. bravoanus

    • Other Caryophyllales

    Species

    Varieties

  • Achyranthes splendens var. rotundata

    • Fagales

    Species

    Subspecies

  • Betula lenta subsp. uber, Virginia round-leaf birch
  • Betula procurva subsp. schugnanica

    • Other dicotyledons

    Species

    Varieties

  • Rhododendron protistum var. giganteum

    • Monocotyledons

    There are 421 species, six subspecies, and five varieties of monocotyledon assessed as critically endangered.

    Arecales

    Species

    Varieties

    Orchidales

    There are 167 species and one subspecies in Orchidales assessed as critically endangered.

    Orchidaceae

    Species

    Subspecies

  • Cynorkis buchwaldiana subsp. buchwaldiana

    • Liliales

    Species

    Subspecies

  • Narcissus nevadensis subsp. enemeritoi

    • Araceae

    Species

    Subspecies

  • Arisaema heterocephalum subsp. okinawaense

    • Cyperales

    There are 37 species, two subspecies, and two varieties in Cyperales assessed as critically endangered.

    Gramineae

    Species

    Subspecies

  • Puccinellia distans subsp. embergeri
  • Puccinellia distans subsp. font-queri

    • Varieties

  • Cenchrus agrimonioides var. agrimonioides

    • Cyperaceae

    Species

    Varieties

  • Cyperus pennatiformis var. bryanii

    • Other monocotyledons

    Species

    Subspecies

  • Najas marina subsp. arsenariensis

    • References

    List of critically endangered plants Wikipedia
    (Text) CC BY-SA


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