NCBI
NCBI Taxonomy taxdump · 2026-10-23taxid: 1496
Bacteria > Bacillota > Clostridia > Peptostreptococcales > Peptostreptococcaceae > Clostridioides > Clostridioides difficile
Clostridioides difficile
Species in genus Clostridioides, family Peptostreptococcaceae (order Peptostreptococcales). (from NCBI Taxonomy lineage)
Names over time
Loading the names
Cross-database view
GTDB
Clostridioides difficile
id: s__Clostridioides difficile · GTDB R232
At its weakest, linked by GTDB's own NCBI species id rather than the genome's raw one.
d__Bacteria;p__Bacillota;c__Clostridia;o__Peptostreptococcales;f__Peptostreptococcaceae;g__Clostridioides;s__Clostridioides difficile
SILVA
Clostridioides difficile
id: X73450 · SILVA 138.2
Linked by name — the SILVA table we ingest carries no NCBI taxid, so the binomial is the only join.
Bacteria;Bacillota;Clostridia;Peptostreptococcales-Tissierellales;Peptostreptococcaceae;Clostridioides;
Greengenes2
Clostridioides_A difficile
id: Clostridioides_A difficile (+2) · Greengenes2 2024.09
Linked via GTDB R220 genome accessions — the same physical genomes, not a name match.
d__Bacteria; p__Bacillota_A_368345; c__Clostridia_258483; o__Peptostreptococcales; f__Peptostreptococcaceae_256921; g__Clostridioides_A; s__Clostridioides_A difficile
eHOMD
release 4.2No record in eHOMD 4.2.
Each panel shows one release. Switch a release to see how that database's answer changes — the taxon is held fixed by NCBI taxid, so every panel describes the same organism. Each panel also says how it was linked; how the databases are joined explains the routes.
Lineage by rank
| rank | NCBI | GTDB R232 | SILVA 138.2 | Greengenes2 2024.09 |
|---|---|---|---|---|
| domain | Bacteria | Bacteria | Bacteria | Bacteria |
| phylum | Bacillota | Bacillota | Bacillota | first rank that differs from NCBI: Bacillota_A_368345 |
| class | Clostridia | Clostridia | Clostridia | Clostridia_258483 |
| order | Peptostreptococcales | Peptostreptococcales | first rank that differs from NCBI: Peptostreptococcales-Tissierellales | Peptostreptococcales |
| family | Peptostreptococcaceae | Peptostreptococcaceae | Peptostreptococcaceae | Peptostreptococcaceae_256921 |
| genus | Clostridioides | Clostridioides | Clostridioides | Clostridioides_A |
| species | Clostridioides difficile | Clostridioides difficile | — | Clostridioides_A difficile |
Each column is the release its box shows. marks the first rank at which a database's name differs from NCBI's, by exact text; a suffix such as _A counts. SILVA's path and eHOMD's columns end at genus, so their species row is blank; the box above names the species. Levels a source labels outside these seven ranks are in the API's ranks and not drawn here.
Names in NCBI
from NCBI Taxonomy taxdump · 2026-10-23- Clostridioides difficilecurrent
- Clostridium difficile (Hall and O'Toole 1935) Prevot 1938 (Approved Lists 1980)synonym
- Peptoclostridium difficilesynonym
Other names in these databases
GTDB R232
- Clostridioides difficile
- Clostridioides difficile_A
- Clostridioides difficile_F
- Clostridioides difficile_D
- Clostridioides difficile_E
- Clostridioides difficile_G
- Clostridioides sp020641055
- Clostridium_AQ innocuum
- Metaclostridioides sp002390935
SILVA 138.264 of 82
- Clostridioides difficile
- Clostridioides difficile ATCC 9689 = DSM 1296
- Clostridioides difficile BI1
- Clostridioides difficile 630
- Clostridioides difficile M120
- Clostridioides difficile M68
- Clostridioides difficile CD196
- Clostridioides difficile DA00244
- Clostridioides difficile 2007855
- Clostridioides difficile CD26A54_R
- Clostridioides difficile CD26A54_S
- Clostridioides difficile CD41
- Clostridioides difficile CF5
- Clostridioides difficile DA00165
- Clostridioides difficile DA00261
- Clostridioides difficile P15
- Clostridioides difficile P33
- Clostridioides difficile R20291
- Clostridioides difficile P46
- Clostridioides difficile P49
- Clostridioides difficile P53
- Clostridioides difficile P68
- Clostridioides difficile BJ08
- Clostridioides difficile DA00141
- Clostridioides difficile DA00197
- Clostridioides difficile DA00203
- Clostridioides difficile P13
- Clostridioides difficile P25
- Clostridioides difficile P69
- Clostridioides difficile P77
- Clostridioides difficile F601
- Clostridioides difficile P45
- Clostridioides difficile P64
- Clostridioides difficile DA00196
- Clostridioides difficile QCD-66c26
- Clostridioides difficile P31
- Clostridioides difficile QCD-32g58
- Clostridioides difficile CD9
- Clostridioides difficile DA00129
- Clostridioides difficile F152
- Clostridioides difficile P50
- Clostridioides difficile F501
- Peptoclostridium difficile E12
- Peptoclostridium difficile E13
- Peptoclostridium difficile E15
- Peptoclostridium difficile E7
- Peptoclostridium difficile E9
- Peptoclostridium difficile T11
- Peptoclostridium difficile T15
- Peptoclostridium difficile T17
- Peptoclostridium difficile T22
- Peptoclostridium difficile T6
- Clostridioides difficile 050-P50-2011
- Clostridioides difficile 6407
- Clostridioides difficile 6503
- Clostridioides difficile 6534
- Clostridioides difficile ATCC 43255
- Clostridioides difficile BI9
- Clostridioides difficile CD37
- Clostridioides difficile CD70
- Clostridioides difficile CIP 107932
- Clostridioides difficile F548
- Clostridioides difficile NAP07
- Clostridioides difficile NAP08
- …and 18 more, not listed — this taxon is a large placeholder bucket in SILVA 138.2.
Greengenes2 2024.09
- Clostridioides_A difficile
- Dwaynesavagella sp000270205
- Pediococcus acidilactici