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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.

91 species · HydrangeaShowing 49–72

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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 yetHydrangea luteovenosaName author: Koidz.Accepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea macrocarpaName author: Hand.-Mazz.Accepted speciesHydrangeaceaeHydrangea genus
Hydrangea — botanical reference

Photo Credit: belvedere04 · CC BY 4.0

Hydrangea macrophyllaName author: (Thunb.) Ser.Accepted speciesHydrangeaceaeHydrangea genusHydrangea guide
No photo yetHydrangea mangshanensisName author: C.F.WeiAccepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea marunoiName author: Tagane & S.FujiiAccepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea mathewsiiName author: Briq.Accepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea megalocarpaName author: (Chun) J.M.H.ShawAccepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea minamitaniiName author: (H.Ohba) YaharaAccepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea moellendorffiName author: HanceAccepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea mollissimaName author: (Merr.) Y.De Smet & GranadosAccepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea nebulicolaName author: Nevling & Gómez PompaAccepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea obtusifoliaName author: (Hu) Y.De Smet & GranadosAccepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea ofeliaeName author: Sodusta & LumawagAccepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea paniculataName author: SieboldAccepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea peruvianaName author: Moric. ex Ser.Accepted speciesHydrangeaceaeHydrangea genus
Flat-topped, lace-cap cluster of white flowers.

Photo Credit: Ann Hamze · CC BY 4.0

Hydrangea petiolarisName author: Siebold & Zucc.Accepted speciesHydrangeaceaeHydrangea genusClimbing Hydrangea guide
No photo yetHydrangea platyargutaName author: Y.De Smet & C.GranadosAccepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea presliiName author: Briq.Accepted speciesHydrangeaceaeHydrangea genus
flower and leaves, spring, Warren County, NC

Photo Credit: Cathy Dewitt · CC BY 4.0

Hydrangea quercifoliaName author: W.BartramAccepted speciesHydrangeaceaeHydrangea genusOakleaf Hydrangea guide
No photo yetHydrangea radiataName author: WalterAccepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea robustaName author: Hook.f. & ThomsonAccepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea sargentianaName author: RehderAccepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea scandensName author: (L.f.) Ser.Accepted speciesHydrangeaceaeHydrangea genus
No photo yetHydrangea schizomollisName author: Y.De Smet & GranadosAccepted speciesHydrangeaceaeHydrangea 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 1230 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.