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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.

1,383 species in PolygonaceaeShowing 1,153–1,176

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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. 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 yetRheum rhabarbarumName author: Carl Linnaeus (L.)Accepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum rhaponticumName author: Carl Linnaeus (L.)Accepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum rhizostachyumName author: SchrenkAccepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum rhomboideumName author: Losinsk.Accepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum ribesName author: Carl Linnaeus (L.)Accepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum spiciformeName author: RoyleAccepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum subacauleName author: Sam.Accepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum sublanceolatumName author: C.Y.Cheng & T.C.KaoAccepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum tanguticumName author: Maxim. ex Balf.Accepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum tataricumName author: L.f.Accepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum tibeticumName author: Maxim. ex Hook.f.Accepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum turkestanicumName author: Janischew.Accepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum uninerveName author: Maxim.Accepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum webbianumName author: RoyleAccepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum wittrockiiName author: LundstromAccepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum yunnanenseName author: Sam.Accepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRheum × hybridumName author: MurrayAccepted speciesPolygonaceaeRheum genusNo guide yet
No photo yetRumex abyssinicusName author: Jacq.Accepted speciesPolygonaceaeRumex genusNo guide yet
No photo yetRumex acetosaName author: Carl Linnaeus (L.)Accepted speciesPolygonaceaeRumex genusNo guide yet
No photo yetRumex acetosellaName author: Carl Linnaeus (L.)Accepted speciesPolygonaceaeRumex genusNo guide yet
No photo yetRumex aegyptiacusName author: Carl Linnaeus (L.)Accepted speciesPolygonaceaeRumex genusNo guide yet
No photo yetRumex albescensName author: Hillebr.Accepted speciesPolygonaceaeRumex genusNo guide yet
No photo yetRumex alpestrisName author: Jacq.Accepted speciesPolygonaceaeRumex genusNo guide yet
No photo yetRumex alpinusName author: Carl Linnaeus (L.)Accepted speciesPolygonaceaeRumex genusNo guide yet
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.