The name of the lowest or terminal infraspecific epithet of the scientificName, excluding any rank designation.

`concolor` (for scientificName "Puma concolor concolor"), `oxyadenia` (for scientificName "Quercus agrifolia var. oxyadenia"), `laxa` (for scientificName "Cheilanthes hirta f. laxa"), `scaberrima` (for scientificName "Indigofera charlieriana var. scaberrima").

In botany, where there can be more than one infraspecific rank, name strings may be provided, in literature and in identifications, that have more than two epithets. Only the last of these epithets is the infraspecificEpithet and only the first and the last epithets belong to the scientificName. For example: the infraspecificEpithet in the string "Indigofera charlieriana subsp. sessilis var. scaberrima" is `scaberrima` and the scientificName is `Indigophera charlieriana var. scaberrima`.

Infraspecific Epithet