List of critically endangered plants
Topic: Biology
From HandWiki - Reading time: 6 min
As of December 2023, the International Union for Conservation of Nature (IUCN) lists 5702 plant species categorized as Critically Endangered, including 569 which are tagged as possibly extinct and 48 possibly extinct in the wild.[1][2] 8.6% of all evaluated plant species are listed as critically endangered. The IUCN also lists 284 subspecies and varieties as critically endangered.
Additionally 5371 plant species (8.1% 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
- Marsilea fadeniana
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
- Piper amalago var. variifolium
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
- Elaeocarpus submonoceras subsp. oliganthus
- Hibiscus waimeae subsp. hannerae
Varieties
- Bombax insigne var. polystemon
Geraniales
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
Family Proteaceae - 103 species
Family Sabiaceae - 5 species
Dipsacales
Plumbaginales
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.
Monimiaceae
Hernandiaceae
Lauraceae
Cucurbitales
Species
Subspecies
- Begonia quadrialata subsp. dusenii
Ebenales
There are 46 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
- Ilex perado subsp. iberica
- Ilex perado subsp. lopezlilloi
Celastraceae
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
Melastomataceae
Combretaceae
Species
- Combretum tenuipetiolatum
Varieties
Thymelaeaceae
Water caltrops
- Trapa colchica, Colchis water-chestnut
Lythraceae
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
Zygophyllaceae
Anacardiaceae
Meliaceae
Species
Subspecies
- Trichilia trifolia subsp. pteleaefolia
- Turraea mombassana subsp. schliebenii
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
- Magnolia cubensis subsp. acunae
- Magnolia virginiana subsp. oviedoae
Annonaceae
Species
Subspecies
- Artabotrys modestus subsp. modestus
Myristicaceae
Capparales
There are 30 species and one variety in Capparales assessed as critically endangered.
Capparaceae
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
Umbelliferae
Gentianales
There are 41 species, two subspecies, and one variety in the order Gentianales assessed as critically endangered.
Apocynaceae
Loganiaceae
Species
Varieties
- Labordia tinifolia var. wahiawaensis
Asclepiadaceae
Species
Subspecies
- Ceropegia decidua subsp. pretoriensis
- Pentarrhinum abyssinicum subsp. ijimense
Gentianaceae
Rosales
There are 48 species, two subspecies, and one variety in the order Rosales assessed as critically endangered.
Chrysobalanaceae
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.
Myrsinaceae
Theophrastaceae
Species
- Clavija parvula
Varieties
- Jacquinia macrantha var. clarendonensis
Primulaceae
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.
Oleaceae
Gesneriaceae
Species
Subspecies
- Saintpaulia ionantha subsp. grandifolia
- Saintpaulia ionantha subsp. rupicola
Varieties
- Gesneria scabra var. fawcettii
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
- Sarracenia rubra subsp. alabamensis
Ranunculales
Species
Varieties
- Cissampelos nigrescens var. cardiophylla
Polygonales
Podostemales
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
Burmanniaceae
Pandanales
Bromeliales
Liliales
Species
Subspecies
- Narcissus nevadensis subsp. enemeritoi
Arales
Araceae
Species
Subspecies
- Arisaema heterocephalum subsp. okinawaense
Zingiberales
Eriocaulales
Commelinales
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
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 2023-1". International Union for Conservation of Nature and Natural Resources (IUCN). http://www.iucnredlist.org/.
- ↑ "Table 9: Possibly Extinct and Possibly Extinct in the Wild Species (IUCN Red List version 2023-1)". Union for Conservation of Nature and Natural Resources (IUCN). https://www.iucnredlist.org/statistics.
- ↑ "Limitations of the Data". Union for Conservation of Nature and Natural Resources (IUCN). http://www.iucnredlist.org/initiatives/mammals/description/limitations.
- ↑ "2001 Categories & Criteria (version 3.1)". Union for Conservation of Nature and Natural Resources (IUCN). http://www.iucnredlist.org/static/categories_criteria_3_1.
- ↑ 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. https://www.iucnredlist.org/species/34015/2840365. Retrieved 27 September 2020.
 |  |
EncycloReader
is supported by the 
KSF