taxonomic rank
in biology, level in a taxonomic hierarchy
phylum
main taxonomic rank (under the rank kingdom)
subkingdom
taxonomic rank in biological classification
rank in botany
taxonomic rank in botany
subtribe
taxonomic category rank
legion
taxonomic rank
kingdom
taxonomic rank
class
taxonomic rank in biology
subspecies
taxonomic rank subordinate to species.Subspecies differentiate closely related organisms within a single species
variety
taxonomic rank
branch
taxonomic rank
form
terms that are sometimes used in zoology, but that have no standing under the ICZN
superorder
taxonomic rank
subsection
taxonomic rank in botany
cultivar
plant or grouping of plants selected for desirable characteristics
form
one of the secondary taxonomic ranks, below that of variety, in botanical nomenclature
series
taxonomic rank in botany
cultivar group
grouping used for cultivated plants (capital initial letter mandatory)
group
taxonomic rank directly above family
genus
taxonomic rank used in the biological classification of living and fossil organisms, and viruses
subclass
taxonomic rank
subsection
rank in zoology, above superfamily
rank in zoology
taxonomic rank in zoology
domain
taxonomic rank (for "ordinary" organisms thus not viruses)
subfamily
taxonomic rank below family
subphylum
taxonomic rank
subdomain
taxonomic rank directly below domain
subdivision
taxonomic rank in biological systematics
superclass
taxonomic rank
suborder
taxonomic rank
division
taxonomic rank in botanical classification, equivalent to phylum in zoology
species aggregate
informal grouping of taxa
grex
group of artificial orchid hybrids
subgenus
taxonomic rank
species
one of the basic units of biological classification and a taxonomic rank
family
taxonomic rank (or a taxon at that rank) between order and genus
tribe
taxonomic rank between family and genus
subvariety
taxonomic rank
order
taxonomic rank
clade
group of a common ancestor and all descendants
strain
genetic variant, a subtype or a culture within a biological species
superfamily
taxonomic rank above family and below order
cohort
taxonomic category for biological classification
section
taxonomic rank in botany
informal group
taxonomic rank
realm
taxonomic rank for viruses