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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.

495 species · CirsiumShowing 1–24

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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 yetCirsium abukumenseKadotaAccepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium acantholepisPetr.Accepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium acaule(L.) A.A.Weber ex Wigg.Accepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium acaule(L.) Scop.Accepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium aciculareTauschAccepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium acrolepis(Petr.) G.B.OwnbeyAccepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium adjaricumSommier & LevierAccepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium aduncumFisch. & C.A.Mey. ex DC.Accepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium affineTauschAccepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium aggregatumLedeb.Accepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium aidzuenseNakai ex Kitam.Accepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium aitchisoniiBoiss.Accepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium alatum(S.Gmel.) BobrovAccepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium albertiiRegel & Schmalh.Accepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium albescensKitam.Accepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium albidumVelen.Accepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium albowianumSommier & LevierAccepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium alpestreNaegeliAccepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium alpicolaNakaiAccepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium alpis-lunaeBrilli-Catt. & L.GubelliniAccepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium alsophilum(Pollini) SoldanoAccepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
Flowers and buds

Photo Credit: Superior National Forest · CC BY 2.0

Cirsium altissimum(L.) HillAccepted speciesAsteraceaeCirsium genusTall Thistle guide
Related genus guideSwamp Thistle
No photo yetCirsium amaniPostAccepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
No photo yetCirsium amplexifolium(Nakai) Kitam.Accepted speciesAsteraceaeCirsium genus
Related genus guidesTall Thistle Swamp Thistle
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.