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 1,057–1,080
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 xanthopetalumName author: Merr.Accepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron xanthostephanumName author: Merr.Accepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron xeniumName author: Gill.K.Br. & CravenAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron xiangganenseName author: X.F.Jin & B.Y.DingAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron xiaoxidongenseName author: W.K.HuAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron xiaoxueshanenseName author: R.L.Liao & Y.P.MaAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron xichangenseName author: Z.J.ZhaoAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron xiguenseName author: Ching & H.P.YangAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron xishuienseName author: C.H.Yang & C.D.YangAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yakuinsulareName author: Masam.Accepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yakumontanumName author: (T.Yamaz) T.YamazAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yakushimanumName author: NakaiAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yakushimenseName author: (M.Tash. & H.Hatta) CravenAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yangmingshanenseName author: P.C.TamAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yaogangxianenseName author: Q.X.LiuAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yaoshanenseName author: L.M.Gao & S.D.ZhangAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yaoshanicumName author: W.P.Fang & M.Y.HeAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yedoenseName author: Regel ex Maxim.Accepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yelliotiiName author: Warb.Accepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yizhangenseName author: Q.X.LiuAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yombuwuriiName author: Hutabarat, Bandjolu & ZulfadliAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yongiiName author: ArgentAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yuanbaoshanenseName author: Y.H.Deng & T.DingAccepted species | EricaceaeRhododendron genus | No guide yet |
| No photo yet | Rhododendron yungchangenseName author: CullenAccepted 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 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.