Try the calculator
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.

2,102 species · EuphorbiaShowing 1,609–1,632

Clear filters

Photos show the identified species; cultivars and commercial forms can vary. Related genus guides cover other plants in the same group. Name authors credit the botanists behind a scientific name; “L.” stands for Carl Linnaeus. Swipe across the table to see family and guide links.

Flowering species, botanical families, photographs, and available florist guides
PhotoSpeciesFamily & genusFlower guides
No photo yetEuphorbia rhytidospermaName author: Boiss. & BalansaAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia rhytispermaName author: Engelm. ex Klotzsch & GarckeAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia richardsiaeName author: L.C.LeachAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia ridleyiName author: CroizatAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia riebeckiiName author: PaxAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia rigidaName author: M.Bieb.Accepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia rigidispinaName author: Haev. & Hett.Accepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia riinaeName author: V.W.Steinm.Accepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia rimarumName author: Coss. & BalansaAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia ritchieiName author: (P.R.O.Bally) BruynsAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia rivaeName author: PaxAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia robecchiiName author: PaxAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia robivelonaeName author: RauhAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia rochaensisName author: (Croizat) Alonso Paz & MarchesiAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia rockiiName author: C.N.ForbesAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia roemerianaName author: ScheeleAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia rohlenaeName author: Velen.Accepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia roschanicaName author: (Ikonn.) Czerep.Accepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia roseaName author: Retz.Accepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia roseanaName author: (Marn.-Lap. ex Demoly) J.-P.Castillon & J.-B.CastillonAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia rosescensName author: E.L.Bridges & OrzellAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia rossianaName author: PaxAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia rossiiName author: Rauh & BuchlohAccepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
No photo yetEuphorbia rosularisName author: Al.Fed.Accepted speciesEuphorbiaceaeEuphorbia genus
Related genus guideMediterranean Spurge
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 980 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.