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Approximately 0.068% of all evaluated plant species are listed as extinct in the wild. The IUCN also lists one plant subspecies as extinct in the wild. This is a complete list of extinct in the wild plant species and subspecies as evaluated by the IUCN. All are vascular plants (tracheophytes).
As of September 2016, the International Union for Conservation of Nature (IUCN) lists 116 extinct species, 132 possibly extinct species, 35 extinct in the wild species, 13 possibly extinct in the wild species, five extinct subspecies, one extinct in the wild subspecies, and four extinct varieties of plant. [1] [2]
The Caytoniales (Figs. 1-2) are an extinct order of seed plants known from fossils collected throughout the Mesozoic Era, around 2] [3] [4] They are regarded as seed ferns because they are seed-bearing plants with fern-like leaves. [4]
Glossopteris (etymology: from Ancient Greek γλῶσσα (glôssa, " tongue ") + πτερίς (pterís, " fern ")) is the largest and best-known genus of the extinct Permian order of seed plants known as Glossopteridales (also known as Arberiales, Ottokariales, or Dictyopteridiales).
Pteridospermatophyta, also called "pteridosperms" or "seed ferns" are a polyphyletic [1] grouping of extinct seed-producing plants. The earliest fossil evidence for plants of this type are the lyginopterids of late Devonian age. [2] They flourished particularly during the Carboniferous and Permian periods.
Critically Endangered (CR) species face an extremely high risk of extinction in the wild. 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.
Corystosperms are a group of extinct seed plants (often referred to as "seed ferns") belonging to the family Corystospermaceae (also called Umkomasiaceae) assigned to the order Corystospermales [1] or Umkomasiales.
The original wild plant died in 1994, making the species extinct in the wild. The final known specimen in cultivation, a seedling of the cutting, which had been the only surviving plant since 1999, died in 2003 from fungus and termite infestation, making the species totally extinct. [ 3 ]
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