As of September 2016, the International Union for Conservation of Nature (IUCN) lists 5430 vulnerable (VU) plant species. 25% of all evaluated plant species are listed as vulnerable. The IUCN also lists 244 subspecies and 235 varieties as vulnerable. No subpopulations of plants have been evaluated by the IUCN.

For a species to be assessed as vulnerable to extinction the best available evidence must meet quantitative criteria set by the IUCN designed to reflect "a high risk of extinction in the wild". Endangered and critically endangered species also meet the quantitative criteria of vulnerable species, and are listed separately. See: List of endangered plants, List of critically endangered plants. Vulnerable, endangered, and critically endangered species are collectively referred to as threatened species by the IUCN.

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 vulnerable plant species, subspecies and varieties evaluated by the IUCN .

Algae

Acrosorium papenfussii Austrofolium equatorianum Pseudolaingia hancockii

Bryophytes There are 25 bryophyte species assessed as vulnerable.

Mosses

Ambuchanania leucobryoides Andoa berthelotiana Andreaea frigida Anomobryum lusitanicum Aschisma kansanum Brachythecium funkii Brachythecium geheebii Bryoerythrophyllum caledonicum Bryoerythrophyllum duellii Bryum austriacum Coscinodon horridus Donrichardsia macroneuron Exsertotheca intermedia Gradsteinia torrenticola Grimmia curviseta Gymnobarbula bicolor Hypnodontopsis apiculata Isothecium prolixum Leptodon longisetus Leucodon treleasei Leucoperichaetium eremophilum Microbryum longipes Orthotrichum dentatum Racomitrium nivale Rhynchostegiella trichophylla Rhynchostegium confusum Schistidium bryhnii Schistidium grande Schizymenium pontevedrense Seligeria irrigata Sphagnum lewisii Sphagnum novo-caledoniae Sphagnum sumapazense Takakia ceratophylla Tetrastichium fontanum Thamnobryum fernandesii Tortella limbata Weissia squarrosa

Liverworts

Acrobolbus wilsonii Biantheridion undulifolium Calypogeia rhynchophylla Cololejeunea schaeferi Frullania jackii Frullania polysticta Fulfordianthus evansii Haesselia roraimensis Hattoria yakushimensis Herbertus borealis Herbertus norenus Lejeunea canariensis Lejeunea mandonii Marsupella profunda Micropterygium longicellulatum Myriocoleopsis fluviatilis Nardia huerlimannii Nowellia wrightii Perssoniella vitreocincta Riccia alatospora Riccia breidleri Scaphophyllum speciosum Sewardiella tuberifera

Pteridophytes There are 83 species and one subspecies of pteridophyte assessed as vulnerable.

Leptosporangiate ferns There are 69 species in the class Polypodiopsida assessed as vulnerable.

Polypodiales There are 61 species in the order Polypodiales assessed as vulnerable.

Aspleniaceae

Asplenium aegaeum Asplenium ascensionis Asplenium compressum, plastic fern Asplenium creticum Asplenium hermannii-christii, Hermann Christ's asplenium Asplenium lolegnamense Asplenium majoricum Asplenium schweinfurthii

Athyriaceae

Diplazium chimboanum Diplazium divisissimum Diplazium leptogrammoides Diplazium mildei Diplazium navarretei Diplazium oellgaardii Diplazium palaviense Diplazium rivale

Blechnaceae

Blechnum eburneum Blechnum monomorphum Blechnum sodiroi

Dennstaedtiaceae

Dennstaedtia macrosora Dennstaedtia paucirrhiza Dennstaedtia tryoniana

Dryopteridaceae

Arachniodes webbiana Bolbitis riparia Ctenitis iriomotensis Cyrtomium nephrolepioides Dryopteris ardechensis Dryopteris liliana, buckler fern Dryopteris macropholis Dryopteris sweetiorum Elaphoglossum antisanae Elaphoglossum bryogenes Elaphoglossum ecuadorense Elaphoglossum heliconiaefolium Elaphoglossum hieronymi Elaphoglossum inciens Elaphoglossum marquisearum Elaphoglossum molle Elaphoglossum muriculatum Elaphoglossum oleandropsis Elaphoglossum yatesii Lastreopsis subsericea Polybotrya andina Polystichum bonapartii Polystichum marquesense Polystichum uahukaense

Polypodiaceae

Archigrammitis marquesensis Campyloneurum oellgaardii Ceradenia melanopus Ceradenia semiadnata Grammitis pervillei Grammitis sechellarum Lellingeria paucipinnata Lellingeria strangeana Leptochilus cantoniensis Micropolypodium aphelolepis Oreogrammitis uapensis Polypodium latissimum Polypodium quitense

Thelypteridaceae

Amauropelta aculeata Amauropelta appressa Amauropelta campii Amauropelta conformis Amauropelta correllii Amauropelta dodsonii Amauropelta elegantula Amauropelta euthythrix Amauropelta rosenstockii Amauropelta straminea Amauropelta subtilis Cyclosorus sino-acuminata Pneumatopteris blastophora Pneumatopteris humbertii Thelypteris quaylei

Other Polypodiales species

Aleuritopteris albofusca Blotiella reducta Cleistoblechnum eburneum (syn. Blechnum eburneum) Dennstaedtia macrosora Dennstaedtia paucirrhiza Dennstaedtia tryoniana Hecistopteris pinnatifida Odontosoria africana Physematium indusiosum Pteris albersii Pteris incompleta, Laurisilva brake Tectaria villosa Trachypteris drakeana Vittaria reekmansii Woodsia indusiosa

Hymenophyllales Hymenophyllum alveolatum Trichomanes paucisorum

Cyatheales

Cyathea bipinnata Cyathea halonata Cyathea hemiepiphytica Cyathea punctata Dicksonia arborescens, St Helena tree fern

Salviniales Marsilea schelpeana

Isoetopsida

Isoetes azorica, Azorean quillwort Isoetes ecuadoriensis Isoetes herzogii Isoetes parvula Isoetes saracochensis

Lycopodiopsida

Species

Huperzia ascendens Huperzia austroecuadorica Huperzia columnaris Huperzia compacta Huperzia espinosana Huperzia llanganatensis Huperzia scabrida Huperzia talpiphila Selaginella carinata

Subspecies Huperzia dacrydioides subsp. dura

Gymnosperms There are 156 species, seven subspecies, and 34 varieties of gymnosperm assessed as vulnerable.

Cycads

Species

Ceratozamia mexicana Ceratozamia microstrobila Ceratozamia vovidesii Cycas aculeata Cycas armstrongii Cycas bifida Cycas cairnsiana Cycas collina Cycas cupida Cycas desolata Cycas diannanensis Cycas falcata Cycas guizhouensis Cycas inermis Cycas macrocarpa Cycas megacarpa Cycas micholitzii Cycas nathorstii Cycas nongnoochiae Cycas ophiolitica Cycas panzhihuaensis Cycas pectinata Cycas pranburiensis Cycas saxatilis Cycas seemannii Cycas segmentifida Cycas semota Cycas shanyaensis Cycas siamensis Cycas silvestris Cycas tuckeri Dioon angustifolium Dioon argenteum Dioon merolae Dioon purpusii Dioon tomasellii Encephalartos altensteinii, Eastern Cape cycad Encephalartos aplanatus Encephalartos barteri Encephalartos ghellinckii, Drakensberg cycad Encephalartos gratus, Mulanje cycad Encephalartos humilis, dwarf cycad Encephalartos manikensis, Gorongo cycad Encephalartos marunguensis, Marungu cycad Encephalartos ngoyanus, Ngoye cycad Encephalartos paucidentatus, Barberton cycad Encephalartos princeps, Kei cycad Encephalartos schaijesii Encephalartos schmitzii, Schmitz's cycad Encephalartos senticosus, Jozini cycad Encephalartos trispinosus, Bushman's river cycad Macrozamia cardiacensis Macrozamia conferta Macrozamia crassifolia Macrozamia humilis Macrozamia machinii Macrozamia occidua Macrozamia parcifolia Macrozamia platyrhachis Macrozamia secunda Stangeria eriopus, Natal grass cycad Zamia acuminata Zamia angustifolia Zamia cunaria Zamia encephalartoides Zamia erosa Zamia herrerae Zamia neurophyllidia Zamia oreillyi Zamia pumila Zamia soconuscensis Zamia standleyi Zamia stricta

Subspecies Encephalartos barteri subsp. barteri, West African cycad

Conifers

Species

Abies fabri, Faber's fir Abies hidalgensis Abies recurvata, Min fir Abies squamata, flaky fir Afrocarpus mannii Agathis dammara, Amboina pitch tree Agathis flavescens, Tahan agathis Agathis lanceolata, Koghis kauri Agathis lenticula Agathis macrophylla, Fijian kauri pine Agathis moorei, Moore's kauri Agathis ovata, scrub kauri Amentotaxus formosana, Taiwan catkin yew Amentotaxus poilanei, Poilane's catkin yew Amentotaxus yunnanensis, Yunnan catkin yew Araucaria bernieri Araucaria biramulata Araucaria heterophylla, Norfolk Island pine Araucaria montana Araucaria schmidii Athrotaxis cupressoides, pencil pine Athrotaxis selaginoides, King William pine Callitris monticola, steelhead Callitris oblonga, Tasmanian cypress-pine Cathaya argyrophylla Cedrus libani, cedar of Lebanon Cephalotaxus mannii, Mann's yew plum Cephalotaxus oliveri, Oliver's plum yew Cupressus bakeri, Baker cypress Cupressus chengiana, Cheng cypress Cupressus macrocarpa, Monterey cypress Cupressus sargentii, Sargent cypress Fokienia hodginsii, Fujian cypress Juniperus angosturana Juniperus barbadensis, West Indies juniper Juniperus brevifolia, Azores juniper Juniperus tibetica, Tibetan juniper Keteleeria evelyniana Picea asperata, dragon spruce Picea brachytyla, Sargent's spruce Picea breweriana, Brewer's spruce Picea farreri, Farrer's spruce Picea likiangensis, Likiang spruce Picea morrisonicola, Mount Morrison spruce Picea torano, tigertail spruce Pilgerodendron uviferum, Guaitecas cypress Pinus greggii, Gregg's pine Pinus krempfii, Krempf's pine Pinus merkusii, Merkus's pine Pinus muricata, bishop pine Pinus rzedowskii, Rzedowski's pine Pinus tecunumanii, Schwerdtfeger's pine Pinus tropicalis, tropical pine Pseudolarix amabilis, Chinese golden larch Pseudotaxus chienii, whiteberry yew Pseudotsuga sinensis, Chinese Douglas-fir Taiwania cryptomerioides, coffin tree Taxus mairei, Maire's yew Thuja koraiensis, Korean arbor-vitae Torreya californica, California nutmeg Torreya fargesii, Farges nutmeg tree Tsuga forrestii, Forrest's hemlock

Subspecies

Abies cilicica subsp. isaurica Abies fabri subsp. fabri Abies fabri subsp. minensis, Minshan fir Agathis robusta subsp. nesophila Pinus cembroides subsp. lagunae Pinus torreyana subsp. insularis, Santa rosa Island pine

Varieties

Abies durangensis var. coahuilensis Abies fargesii var. faxoniana Abies recurvata var. ernestii Abies recurvata var. recurvata Abies veitchii var. sikokiana, Shikoku fir Abies vejarii var. macrocarpa Abies vejarii var. mexicana Abies vejarii var. vejarii Cedrus libani var. brevifolia, Cyprus cedar Cedrus libani var. libani Chamaecyparis obtusa var. formosana Cupressus chengiana var. chengiana Cupressus torulosa var. gigantea Juniperus barbadensis var. lucayana, Bahaman juniper Juniperus blancoi var. blancoi Juniperus blancoi var. huehuentensis Juniperus blancoi var. mucronata Juniperus deppeana var. robusta Juniperus flaccida var. martinezii Juniperus pingii var. pingii Larix potaninii var. chinensis Picea asperata var. asperata Picea brachytyla var. brachytyla Picea brachytyla var. complanata Picea likiangensis var. likiangensis Picea likiangensis var. rubescens Pinus arizonica var. cooperi Pinus arizonica var. stormiae Pinus armandii var. dabeshanensis Pinus brutia var. pityusa, Pitsundian pine Pinus caribaea var. bahamensis, Bahamas pine Pinus radiata var. binata Pseudotsuga sinensis var. brevifolia Pseudotsuga sinensis var. sinensis

Podocarpaceae

Dacrydium leptophyllum Dacrydium medium Nageia motleyi Parasitaxus usta Podocarpus angustifolius Podocarpus archboldii Podocarpus fasciculus Podocarpus gibbsiae Podocarpus lophatus Podocarpus matudae Podocarpus pallidus Podocarpus parlatorei Podocarpus polyspermus Podocarpus polystachyus Podocarpus ridleyi Podocarpus rusbyi Podocarpus salignus, willow-leaf podocarp Prumnopitys andina Prumnopitys ladei, synonym of Pectinopitys ladei, Mt Spurgeon black pine Prumnopitys montana Retrophyllum rospigliosii

Gnetopsida

Gnetum acutum Gnetum contractum Gnetum globosum

Dicotyledons