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.
381 species · RuelliaShowing 337–360
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 | Ruellia spruceiName author: LindauAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia stelligeraName author: BenoistAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia stemonacanthoidesName author: (Oerst.) Hemsl.Accepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia stenophyllaName author: C.B.ClarkeAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia steyermarkiiName author: Wassh.Accepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia strepensName author: Carl Linnaeus (L.)Accepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia subcapitataName author: (Nees) Hemsl.Accepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia subringensName author: (Nees) LindauAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia subsessilisName author: (Nees) LindauAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia taboleiranaName author: E.C.O.Chagas & Costa-LimaAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia tachiadenaName author: (Heine & A.Raynal) E.A.TrippAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia tarapotanaName author: LindauAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia terminalisName author: (Nees) Wassh.Accepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia tessmanniiName author: Mildbr.Accepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia tetragonaName author: LinkAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia tetrastichanthaName author: LindauAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia thyrsostachyaName author: LindauAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia togoensisName author: (Lindau) HeineAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia tolimensisName author: LeonardAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia trachyphyllaName author: LindauAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia transitoriaName author: BenoistAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia treubianaName author: LindauAccepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia tuberosaName author: Carl Linnaeus (L.)Accepted species | AcanthaceaeRuellia genus | No guide yet |
| No photo yet | Ruellia tubifloraName author: KunthAccepted species | AcanthaceaeRuellia 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.