Cirsium Mill.
(thistle)

Subtaxon Example images Rank Featured
subtaxa		 No of
images		 No of
ID refs
Cirsium acaule
Dwarf Thistle, Stemless Thistle, Picnic Thistle
(Click to open)
 		Species 11 images
Cirsium arvense
Creeping Thistle
(Click to open)
 		Species 19 images
Cirsium dissectum
Meadow Thistle
(Click to open) (Click to open) (Click to open)
 		Species 44 images 1 ident. refs
Cirsium eriophorum
Woolly Thistle
(Click to open)
 		Species 17 images
Cirsium heterophyllum
Melancholy Thistle
(Click to open)
 		Species 25 images
Cirsium palustre
Marsh Thistle
(Click to open)
 		Species 25 images
Cirsium tuberosum
Tuberous Thistle
Species 1 ident. refs
Cirsium vulgare
Spear Thistle
(Click to open)
 		Species 21 images
Taxonomic hierarchy:
GenusCirsium (thistle)
TribeCardueae (“thistles”)
SubfamilyLACTUCOIDEAE (“dandelions”)
FamilyASTERACEAE (daisies, dandelions and thistles, composite)
OrderASTERALES (daisies, dandelions, thistles and bell flowers)
SubclassEU-DICOTS (dicotyledonous flowering plants)
ClassMAGNOLIOPSIDA (flowering plants)
PhylumTRACHEOPHYTA (vascular plants)
KingdomPLANTAE (plants)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)

Cirsium (thistle) may be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Cirsium (thistle)
BioInfoBioInfo (www.bioinfo.org.uk) has 260 host/parasite/foodplant and/or other relationships for Cirsium (thistle)
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