List of Clostridium species

As of October 2022, there are 164 validly published species in Clostridium, as well as 38 species described but not validly published.

Species

 * Clostridium aceticum
 * Clostridium acetireducens
 * Clostridium acetobutylicum
 * Clostridium acidisoli
 * Clostridium aciditolerans
 * Clostridium aestuarii
 * Clostridium akagii
 * Clostridium algidicarnis
 * Clostridium algifaecis
 * Clostridium algoriphilum
 * Clostridium amazonense
 * Clostridium aminophilum
 * Clostridium ammoniilyticum
 * Clostridium amylolyticum
 * Clostridium aquiflavi
 * Clostridium arbusti
 * Clostridium arcticum
 * Clostridium argentinense
 * Clostridium aromativorans
 * Clostridium aurantibutyricum
 * "Clostridium autoethanogenum"
 * Clostridium baratii
 * Clostridium beihaiense
 * Clostridium beijerinckii
 * Clostridium diolis
 * Clostridium bornimense
 * Clostridium botulinum
 * Clostridium bovifaecis
 * Clostridium bowmanii
 * Clostridium budayi
 * Clostridium butanoliproducens
 * Clostridium butyricum
 * Clostridium cadaveris
 * Clostridium caldaquaticum
 * Clostridium carboxidivorans
 * Clostridium carnis
 * Clostridium cavendishii
 * Clostridium celatum
 * "Clostridium cellulofermentans"
 * Clostridium cellulosi
 * Clostridium cellulovorans
 * Clostridium chartatabidum
 * Clostridium chauvoei
 * Clostridium chromiireducens
 * Clostridium chrysemydis
 * Clostridium cochlearium
 * Clostridium colicanis
 * Clostridium colinum
 * Clostridium collagenovorans
 * Clostridium combesii
 * Clostridium composti
 * Clostridium cylindrosporum
 * Clostridium disporicum
 * Clostridium drakei
 * Clostridium estertheticum
 * Clostridium facile
 * Clostridium fallax
 * Clostridium felsineum
 * Clostridium fermenticellae
 * Clostridium fessum
 * Clostridium fimetarium
 * Clostridium folliculivorans
 * Clostridium formicaceticum
 * Clostridium frigidicarnis
 * Clostridium frigoris
 * Clostridium fungisolvens
 * Clostridium ganghwense
 * Clostridium gasigenes
 * Clostridium gelidum
 * Clostridium grantii
 * Clostridium guangxiense
 * Clostridium haemolyticum
 * Clostridium herbivorans
 * Clostridium homopropionicum
 * Clostridium hominis
 * Clostridium huakuii
 * Clostridium hydrogeniformans
 * Clostridium hylemonae
 * Clostridium indicum
 * Clostridium innocuum
 * Clostridium intestinale
 * Clostridium isatidis
 * Clostridium jeddahense
 * Clostridium kluyveri
 * Clostridium kogasense
 * Clostridium lacusfryxellense
 * Clostridium lentum
 * Clostridium leptum
 * Clostridium liquoris
 * Clostridium ljungdahlii
 * Clostridium lundense
 * Clostridium luticellarii
 * Clostridium magnum
 * Clostridium malenominatum
 * Clostridium manihotivorum


 * Clostridium methoxybenzovorans
 * Clostridium methylpentosum
 * Clostridium mobile
 * Clostridium moniliforme
 * Clostridium muellerianum
 * Clostridium neonatale
 * Clostridium neuense
 * Clostridium nexile
 * Clostridium nitritogenes
 * Clostridium nitrophenolicum
 * Clostridium novyi
 * Clostridium oceanicum
 * Clostridium omnivorum
 * Clostridium oryzae
 * Clostridium pabulibutyricum
 * Clostridium paradoxum
 * Clostridium paraputrificum
 * Clostridium pascui
 * Clostridium pasteurianum
 * Clostridium peptidivorans
 * Clostridium perfringens
 * Clostridium phytofermentans
 * Clostridium piliforme
 * Clostridium polyendosporum
 * Clostridium polynesiense
 * Clostridium polysaccharolyticum
 * Clostridium porci
 * Clostridium prolinivorans
 * Clostridium psychrophilum
 * Clostridium punense
 * Clostridium puniceum
 * Clostridium putrefaciens
 * Clostridium putrificum
 * Clostridium quinii
 * "Clostridium ragsdalei"
 * Clostridium saccharobutylicum
 * Clostridium saccharoperbutylacetonicum
 * Clostridium sardiniense
 * Clostridium sartagoforme
 * Clostridium saudiense
 * Clostridium scatologenes
 * Clostridium schirmacherense
 * Clostridium scindens
 * Clostridium senegalense
 * Clostridium septicum
 * Clostridium simiarum
 * Clostridium sporogenes
 * Clostridium sporosphaeroides
 * Clostridium subterminale
 * Clostridium sulfidigenes
 * Clostridium swellfunianum
 * Clostridium symbiosum
 * Clostridium tagluense
 * Clostridium tanneri
 * Clostridium tarantellae
 * Clostridium tepidiprofundi
 * Clostridium tepidum
 * Clostridium tertium
 * Clostridium tetani
 * Clostridium tetanomorphum
 * Clostridium thailandense
 * Clostridium thermarum
 * Clostridium thermoalcaliphilum
 * Clostridium thermobutyricum
 * Clostridium thermopalmarium
 * Clostridium thermopapyrolyticum
 * Clostridium thermosuccinogenes
 * Clostridium thiosulfatireducens
 * Clostridium tyrobutyricum
 * Clostridium uliginosum


 * Clostridium vincentii
 * Clostridium viride
 * Clostridium vitabionis
 * Clostridium vulturis
 * Clostridium weizhouense
 * Clostridium zeae

Species formerly placed in Clostridium

 * Order Caryophanales
 * Family Paenibacillaceae
 * Genus Oxalophagus: Clostridium oxalicum, reassigned in 1994.
 * Genus Paenibacillus: Clostridium durum, reassigned in 1994.


 * Order Erysipelotrichia
 * Family Coprobacillaceae
 * Genus Thomasclavelia: Clostridium cocleatum, C. ramosum, C. saccharogumia and C. spiroforme, reassigned in 2023.


 * Order Eubacteriales
 * Family Clostridiaceae
 * Genus Asaccharospora: Clostridium irregulare, reassigned in 2014.
 * Genus Caloramator: Clostridium fervidum, reassigned in 1994.
 * Genus Hathewaya: Clostridium histolyticum, C. limosum and C. proteolyticum, reassigned in 2016.
 * Genus Hungatella: Clostridium hathewayi, reassigned in 2014.
 * Genus Intestinibacter: Clostridium bartlettii, reassigned in 2014.
 * Genus Oxobacter: Clostridium pfennigii, reassigned in 1994.
 * Genus Romboutsia: Clostridium lituseburense, reassugned in 2014.
 * Genus Sarcina: Clostridium maximum and C. ventriculi. Originally described in Sarcina, proposed to be moved to Clostridium in 2016 but remained due to Sarcina being the older genus.
 * Genus Terrisporobacter: Clostridium glycolicum and C. mayombei, reassigned in 2014.
 * Family Eubacteriaceae
 * Genus Eubacterium: Clostridium barkeri, reassigned in 1994.
 * Family Lachnospiraceae
 * Genus Anaerocolumna: Clostridium aminovalericum,  C. jejuense and C. xylanovorans, reassigned in 2016.
 * Genus Anaeromicropila: Clostridium populeti, reassigned in 2023.
 * Genus Anaerotignum: Clostridium lactatifermentans, C. neopropionicum and C. propionicum, reassigned in 2017
 * Genus Blautia: Clostridium coccoides, reassigned in 2008.
 * Genus Butyrivibrio: Clostridium proteoclasticum, reassigned in 2008.
 * Genus Cellulosilyticum: C. lentocellum, reassigned in 2010.
 * Genus Enterocloster: Clostridium aldenense, C. asparagiforme, C. bolteae, C. citroniae, C. clostridioforme and C. lavalense, reassigned in 2020.
 * Genus Faecalicatena: Clostridium oroticum, reassigned in 2017.
 * Genus Lacrimispora: Clostridium aerotolerans, C. algidixylanolyticum, C. amygdalinum, C. celerecrescens, C. indolis, C. saccharolyticum, C. sphenoides, C. xylanolyticum
 * Genus Mediterraneibacter: Clostridium glycyrrhizinilyticum, reassigned in 2019
 * Family Oscillospiraceae
 * Genus Acetivibrio: Clostridium aldrichii, C. alkalicellulosi, C. clariflavum, C. straminisolvens and C. thermocellum, reassigned in 2019.
 * Genus Flavonifractor: Clostridium orbiscindens, merged with Eubacterium plautii and moved to new genus in 2010.
 * Genus Ruminiclostridium: Clostridium cellobioparum, Clostridium cellulolyticum, Clostridium hungatei, Clostridium josui, Clostridium papyrosolvens, Clostridium sufflavum and Clostridium termitidis reassigned in 2018.
 * Genus Thermoclostridium: Clostridium caenicola and C. stercorarium, reassigned in 2018.
 * Family Peptostreptococcaceae
 * Genus Acetoanaerobium: Clostridium sticklandii, reassigned in 2016.
 * Genus Clostridioides: Clostridium difficile and C. mangenotii, reassigned in 2016.
 * Genus Filifactor: Clostridium villosum, reassigned in 1994.
 * Genus Maledivibacter: Clostridium halophilum, reassigned in 2016.
 * Genus Paraclostridium: Clostridium bifermentans, reassigned in 2016. C. ghonii and C. sordellii, were first reassigned to Paeniclostridium in 2016 and merged into Paraclostridium in 2024. Both genera remained in Clostridiaceae until 2024.
 * Genus Paramaledivibacter: Clostridium caminithermale, reassigned in 2016.
 * Genus Peptacetobacter: Clostridium hiranonis, reassigned in 2020.
 * Genus Peptoclostridium: C. litorale, reassigned in 2016.
 * Family Syntrophomonadaceae
 * Genus Syntrophospora: Clostridium bryantii, reassigned in 1990.


 * Order Fusobacteriales
 * Family Fusobacteriaceae
 * Genus Fusobacterium: Clostridium rectum, merged into Fusobacterium mortiferum in 2017.


 * Order Halanaerobiales
 * Family Halobacteroidaceae
 * Genus Sporohalobacter: Clostridium lortetii, reassigned in 1984.


 * Order Selenomonadales
 * Family Sporomusaceae
 * Genus Dendrosporobacter: Clostridium quercicolum, reassigned in 2000.


 * Order Thermoanaerobacterales
 * Family Thermoanaerobacteraceae
 * Genus Moorella: Clostridium thermaceticum and C. thermautotrophicum, reassigned in 1994.
 * Genus Thermoanaerobacter: Clostridium thermohydrosulfuricum and C. thermosulfurigenes, reassigned in 1993 and Clostridium thermocopriae and C. thermosaccharolyticum, reassigned in 1994.


 * Order Tissierellales
 * Family Gottschalkiaceae
 * Genus Gottschalkia: Clostridium acidurici and C. purinilyticum, first proposed in 2013 together with Clostridium angusta, reassigned in 2017.
 * Family Tissierellaceae
 * Genus Schnuerera: Clostridium ultunense, reassigned in 2020.
 * Genus Tissierella: Clostridium hastiforme, reassigned in 1986.
 * Unassigned to family
 * Genus Sedimentibacter: C. hydroxybenzoicum, reassigned in 2002.