Template:Infraspeciesbox displays an automatic taxobox for a rank lower than species (an infraspecific rank) for taxa governed by the ICN  (the botanical code). For taxa governed by the ICZN  (the zoological code), see Template:Subspeciesbox.

At present it can only handle a subspecies or a variety (varietas), or the combination of the two, for a non-hybrid species. In particular, it does not handle forms. It also does not handle scientific names with the hybrid symbol ×, such as subspecies of hybrid species.

The parameters are generally the same as Template:Subspeciesbox, which handles subspecies whose names are governed by the Zoological Code.

Note: the example taxoboxes below show how they would look if on a page with the scientific name as the title, when the taxobox name would be set to the page title by default.

Suppose that a species called Yucca grandiflora has a subspecies Y. g. subsp. laxifolia. Then:

{{Infraspeciesbox
| genus = Yucca
| species = grandiflora
| subspecies = laxifolia
| authority = A.Anon
}}

Yucca grandiflora subsp. laxifolia
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Asparagaceae
Subfamily:	Agavoideae
Genus:	Yucca
Species:	Y. grandiflora
Subspecies:	Y. g. subsp. laxifolia
Trinomial name
Yucca grandiflora subsp. laxifolia A.Anon

Suppose that the species Yucca grandiflora has a variety Y. g. var. tenuifolia, with no intervening subspecies. Then:

{{Infraspeciesbox
| genus = Yucca
| species = grandiflora
| varietas = tenuifolia
| authority = B.Anon
}}

Yucca grandiflora var. tenuifolia
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Asparagaceae
Subfamily:	Agavoideae
Genus:	Yucca
Species:	Y. grandiflora
Variety:	Y. g. var. tenuifolia
Trinomial name
Yucca grandiflora var. tenuifolia B.Anon

Finally suppose that Y. g. var. tenuifolia is actually within Y. g. subsp. laxifolia. Then:

{{Infraspeciesbox
|genus = Yucca
|species = grandiflora
|subspecies = laxifolia
|varietas = tenuifolia
|authority = B.Anon
}}

Yucca grandiflora var. tenuifolia
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Asparagaceae
Subfamily:	Agavoideae
Genus:	Yucca
Species:	Y. grandiflora
Subspecies:	Y. g. subsp. laxifolia
Variety:	Y. g. var. tenuifolia
Trinomial name
Yucca grandiflora var. tenuifolia B.Anon

If for some reason it is desired to attach authorities, this is done by working upwards from the lowest level taxon:

{{Infraspeciesbox
|genus = Rhododendron
|greatgrandparent_authority = L.
|subgenus = R. ''subg.'' Hymenanthes
|grandparent_authority = (Blume) K. Koch
|species = irroratum
|parent_authority = Franch.
|subspecies = pogonostylum
|authority = (Balf.f. & W.W.Sm.) D.F.Chamb.
}}

Rhododendron irroratum var. pogonostylum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Ericales
Family:	Ericaceae
Genus:	Rhododendron L.
Subgenus:	R. subg. Hymenanthes (Blume) K. Koch
Species:	R. irroratum Franch.
Subspecies:	R. i. subsp. pogonostylum
Trinomial name
Rhododendron irroratum subsp. pogonostylum (Balf.f. & W.W.Sm.) D.F.Chamb.

If the genus is marked as exinct in its taxonomy template, all lower ranked taxa will be shown with †. Otherwise, three parameters can be used.

• If the target of the taxobox, whether subspecies or varietas, is extinct but higher ranked taxa are not, use |extinct=yes.
• If the target of the taxobox is a varietas and a subspecies is included that is extinct, use |subspecies_extinct=yes. The varietas will also be shown as extinct.
• If the species is extinct, use |species_extinct=yes. The subspecies and varietas, if present, will also be shown as extinct.