grandiflorum

Grandiflorum is a Latin epithet used in botanical nomenclature to denote a species with large flowers. The term, meaning "large-flowered," is not the name of a single organism but a descriptive adjective applied across many genera. Because genus names have different grammatical genders, the epithet appears in several spellings, including grandiflorum (neuter), grandiflorus (masculine), and grandiflora (feminine).

In practice, grandiflorum is found in the scientific names of numerous plant species. It reflects a notable morphological trait—relatively large flowers compared with related species—rather than a shared lineage. As such, species bearing the epithet are not necessarily closely related to one another; the name signals a common characteristic rather than a clade.

A well-known example is Eustoma grandiflorum, the lisianthus, which is widely cultivated for its showy, rose-like blossoms and used in bouquets and ornamental plantings. Other genera have included grandiflorum/grandiflora/grandiflorus in historical or horticultural usage, illustrating how epithets travel across taxonomic groups to describe conspicuous flower size.

Notes on usage: grandiflorum is typically capitalized only as part of a species binomial (the genus name is capitalized, the epithet is not). The epithet is descriptive and does not by itself confer taxonomic rank beyond identifying a species within its genus. Over time, some species with this epithet may be reclassified, and synonyms can appear in taxonomic literature.