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.
1,190 species · RhododendronShowing 193–216
Clear filtersPhotos 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.
| Photo | Species | Family & genus | Flower guides |
|---|---|---|---|
| No photo yet | Rhododendron coelicumName author: Balf.f. & FarrerAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron coeloneurumName author: DielsAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron coelorumName author: WernhamAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron colemaniiName author: R.F.Mill.Accepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron collettianumName author: Aitch. & Hemsl.Accepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron columbianumName author: (Piper) HarmajaAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron comisteumName author: Balf.f. & ForrestAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron commonaeName author: F.Först.Accepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron commutatumName author: SleumerAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron comparabileName author: SleumerAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron complexumName author: Balf.f. & W.W.Sm.Accepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron comptumName author: C.H.WrightAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron concinnoidesName author: Hutch. & Kingdon-WardAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron concinnumName author: Hemsl.Accepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron coriaceumName author: Franch.Accepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron cornu-bovisName author: SleumerAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron correoidesName author: J.J.Sm.Accepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron coryanumName author: Tagg & ForrestAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron cowanianumName author: DavidianAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron coxianumName author: DavidianAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron crassifoliumName author: StapfAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron crassimediumName author: P.C.TamAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron crassistylumName author: M.Y.HeAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron craveniiName author: DanetAccepted species | EricaceaeRhododendron genus | No guide yet |
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 datasetWhat 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.