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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.[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.

37 extinct in the wild plant species (0.16%)2493 critically endangered plant species (11%)3654 endangered plant species (17%)5430 vulnerable plant species (25%)1851 near threatened plant species (8.5%)6645 least concern plant species (31%)1674 data deficient plant species (7.7%)
  •   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[lower-alpha 1]
  • 8496 are not threatened at present[lower-alpha 2]
  • 11,577 to 13,251 are threatened[lower-alpha 3]
  • 151 to 296 are extinct or extinct in the wild:
    • 116 extinct (EX) species[lower-alpha 4]
    • 35 extinct in the wild (EW)
    • 132 possibly extinct [CR(PE)]
    • 13 possibly extinct in the wild [CR(PEW)]
  1. excludes data deficient evaluations.
  2. NT, LR/cd, LC.
  3. Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
  4. Chart omits extinct (EX) species
Critically Endangered (CR) species face an extremely high risk of extinction in the wild.
Critically Endangered (CR) species face an extremely high risk of extinction in the wild.

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



Bryophytes


There are 23 bryophyte species assessed as critically endangered.


Mosses



Liverworts



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


Polypodiaceae


Other Polypodiales species


Hymenophyllales


Salviniales


Isoetopsida



Other pteridophyte species



Gymnosperms


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


Cycads


Species

Subspecies


Conifers


Species

Subspecies

Varieties


Dicotyledons


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


Piperales



Piperaceae

Species

Varieties


Campanulales


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


Campanulaceae

Species

Subspecies


Goodeniaceae


Aristolochiales



Theales


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


Dipterocarpaceae

Species

Subspecies


Theaceae


Guttiferae


Other Theales species


Malvales


Species

Subspecies

Varieties


Geraniales



Lecythidales


Species

Subspecies


Polygalales


Species

Subspecies


Santalales


Species

Varieties


Proteales


Species

Subspecies


Dipsacales



Plumbaginales



Rubiales


Species

Subspecies

Varieties


Violales


Species

Subspecies


Euphorbiales


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


Peraceae


Buxaceae


Euphorbiaceae

Species

Subspecies

Varieties


Laurales


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


Monimiaceae


Hernandiaceae


Lauraceae


Cucurbitales


Species

Subspecies


Ebenales


There are 45 species in Ebenales assessed as critically endangered.


Symplocaceae


Sapotaceae


Ebenaceae


Styracaceae


Celastrales


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


Icacinaceae


Hollies

Species

Subspecies


Celastraceae


Dichapetalaceae


Myrtales


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


Myrtaceae

Species

Varieties


Melastomataceae


Combretaceae

Species

Varieties


Thymelaeaceae


Water caltrops


Lythraceae


Onagraceae


Sapindales


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


Rutaceae

Species

Subspecies

Varieties


Aceraceae

Species

Varieties


Sapindaceae

Species

Varieties


Zygophyllaceae


Anacardiaceae


Meliaceae

Species

Subspecies


Burseraceae


Asterales


Species

Subspecies

Varieties


Magnoliales


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


Canellaceae


Magnoliaceae

Species

Subspecies


Annonaceae

Species

Subspecies


Myristicaceae


Capparales


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


Capparaceae


Cruciferae

Species

Varieties


Apiales


There are 51 species and two varieties in the order Apiales assessed as critically endangered.


Araliaceae

Species

Varieties


Umbelliferae


Gentianales


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


Apocynaceae


Loganiaceae

Species

Varieties


Asclepiadaceae

Species

Subspecies


Gentianaceae


Rosales


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


Chrysobalanaceae


Rosaceae

Species

Subspecies


Other Rosales

Species

Varieties


Primulales


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


Myrsinaceae


Theophrastaceae

Species

Varieties


Primulaceae


Rhamnales


Species

Varieties


Urticales


Species

Varieties


Solanales


Species

Varieties


Scrophulariales


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


Oleaceae


Gesneriaceae

Species

Subspecies

Varieties


Bignoniaceae


Acanthaceae


Scrophulariaceae


Other Scrophulariales species


Lamiales


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


Verbenaceae


Labiatae

Species

Varieties


Boraginaceae


Nepenthales


Species

Subspecies


Ranunculales


Species

Varieties


Polygonales



Podostemales



Fabales


Species

Subspecies

Varieties


Caryophyllales


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


Caryophyllaceae

Species

Subspecies


Cactus

Species

Subspecies


Other Caryophyllales

Species

Varieties


Fagales


Species

Subspecies


Other dicotyledons


Species

Varieties


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


Burmanniaceae


Pandanales



Bromeliales



Liliales


Species

Subspecies


Arales



Araceae

Species

Subspecies


Zingiberales



Eriocaulales



Commelinales



Cyperales


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


Gramineae

Species

Subspecies

Varieties


Cyperaceae

Species

Varieties


Other monocotyledons


Species

Subspecies


See also



References


  1. "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.
  2. "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.
  3. "Limitations of the Data". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 11 January 2016.
  4. "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.
  5. 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.




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