What does flora mean?
Flora denotes the plant life of a particular region, habitat, or geological period, treated as a whole rather than as individual specimens. The word derives from Flora, the ancient Roman goddess of flowers and spring, whose name was adopted by botanists; from the seventeenth century onward, naturalists also used 'flora' for written catalogues describing all the plants of a country or district. In everyday and scientific language alike, the term appears most often alongside its counterpart 'fauna', which covers animal life — the paired phrase 'flora and fauna' signals a complete picture of an ecosystem's living inhabitants. A third, medical sense applies the word to the microorganisms inhabiting the human body, so that 'gut flora' names the bacteria aiding digestion. Richly descriptive yet precise, flora is indispensable in ecology, conservation, travel writing, and any discussion of the natural character of a place.
The plants of a particular region, habitat, or geological period, considered collectively.
"Botanists spent a decade cataloguing the flora of the remote archipelago."
Used only collectively; a single plant is never 'a flora'.
A treatise or systematic list describing the plant species of a given region.
"Her revised flora of the county remains the standard reference for local botanists."
The microorganisms, especially bacteria, normally living in a particular part of the body or other environment.
"Probiotics are said to support healthy intestinal flora."
Often replaced today by 'microbiota' or 'microbiome' in technical writing.
Plural refers to multiple distinct regional or taxonomic floras, or multiple published floras; usually used uncountably when referring to plant life in general.
"The two volumes compare the floras of temperate and tropical South America."
Before it meant plants, Flora was the Roman goddess of flowers — and her spring festival, the Floralia, was famous as the rowdiest party in the ancient calendar.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of flora
Flora comes directly from the name of the Roman goddess Flora, the deity of flowers, spring, and blossoming plants, whose festival, the Floralia, was celebrated in late April. Latin flōs, flōris ('flower'), the goddess's underlying root, also gives English 'floral', 'florist', and 'flourish'. Naturalists began applying the goddess's name collectively to the plants of a region in the early modern period, and the term has been standard in botany ever since. It pairs naturally with 'fauna', named for the corresponding Roman fertility deity Faunus.
Related word forms
How flora is actually used
Standard scientific and general usage; formal to neutral register. In biology, 'gut flora' is increasingly called 'gut microbiota', but 'flora' remains widely understood. Always used collectively — never refers to a single plant.
Easily confused with flora
Fauna refers to the animal life of a region, whereas flora refers to its plant life.