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A WIDER WORLD OF FLOWERS

The botanical directory

From familiar garden flowers to species you have yet to meet. Explore the flowering plant tree through accepted scientific names, botanical families, and synonyms.

Accepted species
347,476
Synonym names
710,971
Botanical families
430
Genera
13,895

Find a flower. Follow its family.

Search scientific names or try a familiar florist name, like rose or peony.

Scientific names and synonyms are searchable from two characters. Familiar florist names link to their broader genus; common names are not available for every species.

794 species · CentaureaShowing 505–528

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Photos show the identified species; cultivars and commercial forms can vary. Related genus guides cover other plants in the same group. Swipe across the table to see family and guide links.

Flowering species, botanical families, photographs, and available florist guides
PhotoSpeciesFamily & genusFlower guides
No photo yetCentaurea omphalodesCoss. & DurieuAccepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea omphalotrichaCoss. & Durieu ex Batt.etTrab.Accepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea onopordifoliaBoiss.Accepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea oranensisGreuter & M.V.Agab.Accepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea orbelicaVelen.Accepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea orientalisL.Accepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea oriolii-bolosiiFern.CasasAccepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea ornataWilld.Accepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea orphanideaHeldr. & Sartori ex Boiss.Accepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea oscensis(Pau ex E.López & Devesa) Raab-Straube & GreuterAccepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea ossaeaHalácsyAccepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea ovinaPall. ex Willd.Accepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea oxylepisHayekAccepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea pabotiiWagenitzAccepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea paczoskiiKotov ex KlokovAccepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea palaestinicaCzerep.Accepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea pallescensDelileAccepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea pamphylicaBoiss. & Heldr.Accepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea pangaeaGreuter & Papan.Accepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea paniculataL.Accepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea panormitanaLojac.Accepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea paphlagonica(Bornm.) WagenitzAccepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea papposa(Coss.) GreuterAccepted speciesAsteraceaeCentaurea genus
No photo yetCentaurea paradoxaMozaff.Accepted speciesAsteraceaeCentaurea genus
THE SOURCE & THE SCOPE

A living reference.
A documented starting point.

Taxonomy changes as plants are studied. This directory preserves the accepted names and synonym relationships in a specific World Flora Online release, so you can trace every entry to its source.

View the June 2026 source dataset

What is included?

All 347,476 accepted species classified under Angiosperms in this snapshot, plus 710,971 names treated as synonyms of those species. Flowering trees, grasses, and other less familiar flowering plants belong here too.

Is this every flower that has ever existed?

No complete list of every historical or undiscovered species exists. This collection excludes unresolved names, subspecies and varieties as separate records, non-flowering plants, and most cultivated forms. It is not a complete fossil or cultivar register.

Can I order these flowers?

A botanical record does not establish cut-flower availability or suitability for an arrangement. Our 730 florist guides cover commercial flowers, specialty garden cuts, and foliage, with design notes, photos, and calculator links. Calculator selection uses that florist collection; other ingredients can be entered as custom items.

Taxonomy: World Flora Online Consortium · CC0 public domain · Published June 21, 2026. Photographs and editorial florist guides have separate credits.