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.
296 species · SennaShowing 241–264
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 | Senna sericeaName author: (Symon) Albr. & SymonAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna siameaName author: (Lam.) H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna silvestrisName author: (Vell.) H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna singueanaName author: (Delile) LockAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna skinneriName author: (Benth.) H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna smithianaName author: (Britton & Rose) H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna sopheraName author: (L.) Roxb.Accepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna sousanaName author: H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna spectabilisName author: (DC.) H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna spinescensName author: (Hoffmanns. ex Vogel) H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna spinifloraName author: (Burkart) H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna spinigeraName author: (Rizzini) H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna splendidaName author: (Vogel) H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna stenophyllaName author: (Britton) H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna stipulaceaName author: (W.T.Aiton) H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna stowardiiName author: (S.Moore) RandellAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna strictaName author: (Randell) RandellAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna suarezensisName author: (Capuron) Du PuyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna subtrijugaName author: H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna subulataName author: (Griseb.) H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna sulfureaName author: (DC. ex Collad.) H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna surattensisName author: (Burm.f.) H.S.Irwin & BarnebyAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna symoniiName author: (Randell) RandellAccepted species | FabaceaeSenna genus | No guide yet |
| No photo yet | Senna talpanaName author: H.S.Irwin & BarnebyAccepted species | FabaceaeSenna 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.