Pausinystalia Yohimbe vs Corynanthe Johimbe looks like a comparison between two plants, but the names usually point to the same botanical species. Current Kew taxonomy accepts Corynanthe johimbe K.Schum. and lists Pausinystalia johimbe as a synonym based on the same original species description.
The confusion continues because supplement labels and health references often use Pausinystalia yohimbe, replacing the initial “j” in the species epithet with “y.” The common English name is also normally written as yohimbe. Secrets Of The Tribe treats these spelling and genus differences as taxonomy issues that require context, not automatic proof that a label contains a different plant.
This guide explains the accepted name, historical synonym, spelling variants, and label details needed to verify botanical identity.
Are Pausinystalia yohimbe and Corynanthe johimbe the same plant?
Yes, in most botanical and supplement contexts, the names refer to the same species. They represent different taxonomic combinations rather than two separate ingredients.
The original scientific name was published as Corynanthe johimbe K.Schum. in 1901. The species was later transferred to the genus Pausinystalia, producing the combination Pausinystalia johimbe. Modern taxonomic authorities may move a species back to an earlier genus when classification evidence or genus boundaries change.
Kew Plants of the World Online currently accepts Corynanthe johimbe. It places Pausinystalia johimbe in the synonym list. A synonym in botanical taxonomy is not necessarily an incorrect or invented name. It is a validly published name that is not the name currently accepted by the chosen taxonomic authority.
| Name | Current role | What it usually indicates |
|---|---|---|
| Corynanthe johimbe | Accepted name in Kew POWO | The currently accepted species name |
| Pausinystalia johimbe | Homotypic synonym | The same species placed in another genus |
| Pausinystalia yohimbe | Common spelling in health and supplement sources | Usually the same yohimbe species, but not Kew’s accepted spelling |
| Yohimbe | Common name | The tree, bark, or a commercial botanical preparation |
Why did the genus change from Pausinystalia to Corynanthe?
Botanical classification changes when taxonomists reassess how species relate to one another. A plant may move between genera without becoming a different biological species.
The genus is the first word in a scientific name. In this case, the species has appeared under both Corynanthe and Pausinystalia. Kew currently places it in Corynanthe, a genus in the coffee family, Rubiaceae.
Changing the genus does not mean the bark suddenly gained a new composition or that older research became unrelated. It means the preferred scientific classification changed.
The original name remains important
Corynanthe johimbe was the original published species name. In botanical nomenclature, that original name becomes the basionym when a later author transfers the species to another genus.
The name Pausinystalia johimbe uses the same species concept and is based on that earlier name. This shared type connection is why Kew describes it as a homotypic synonym.
Why do medical sources still use Pausinystalia yohimbe?
Medical, regulatory, commercial, and supplement references do not always update plant names at the same speed as botanical databases. An older name may remain familiar and continue to appear in research papers, ingredient databases, monographs, and product descriptions.
The United States National Center for Complementary and Integrative Health, for example, identifies yohimbe with the Latin name Pausinystalia yohimbe. This does not establish a second species. It shows that health communication may retain a name widely recognized by readers and researchers.
Search databases may also preserve older terminology to help users locate historical literature. Replacing every synonym with the newest accepted name could make older publications harder to find.
Taxonomy and terminology serve different needs
A taxonomic database aims to organize accepted names and synonyms. A health source may prioritize the wording most common in medical literature. A supplement manufacturer may use the name already recognized in its supply chain.
These systems can therefore use different names for the same plant without directly contradicting one another. The key is to determine whether the names resolve to the same taxonomic species.
Why is the species spelled johimbe in some sources and yohimbe in others?
The difference reflects historical naming and later spelling practices. The formally published species epithet accepted by Kew is johimbe. The English common name is generally spelled yohimbe.
The form Pausinystalia yohimbe appears frequently in medical and commercial writing. Another historical spelling, yohimba, also appears in nomenclatural records connected with the later genus combination.
A one-letter difference does not automatically indicate another plant. It may reflect transliteration, common-name influence, a historical orthographic form, or a database convention.
| Spelling | Typical context | How to interpret it |
|---|---|---|
| johimbe | Formal accepted botanical epithet | Used in Corynanthe johimbe |
| yohimbe | Common name and many medical sources | Usually refers to the same plant |
| yohimba | Historical nomenclatural records | An older form associated with the name’s publication history |
| johimbi | Occasional common-name variant | Requires context and identity verification |
The safest approach is to verify the complete botanical identity rather than judging a product by one letter.
Does an unusual spelling prove that a supplement contains the wrong ingredient?
No. An unusual spelling alone does not prove substitution or misidentification. It may be a recognized synonym, an older taxonomic combination, or a spelling influenced by the common name.
However, spelling should not be ignored. A poorly written label may indicate weak botanical documentation, especially when it also omits the plant part, extract type, supplier identity, or testing information.
A label using Pausinystalia yohimbe may still refer to the expected yohimbe tree. A label containing only “yohimbe extract” provides less taxonomic detail and requires more supporting information.
Identity requires more than a species name
Even a correctly spelled scientific name does not prove that the material inside the bottle was authenticated. Botanical identity depends on sourcing, documentation, manufacturing controls, and appropriate testing.
Scientific wording can improve clarity, but it should not be mistaken for independent verification.
What should appear on a clear yohimbe label?
A useful botanical label should identify the plant as precisely as possible. The preferred scientific name may vary by the labeling system, but the remaining information should remove ambiguity.
Look for:
- The complete botanical name.
- The common name.
- The plant part, such as bark.
- The ingredient form, such as powder, extract, or tincture.
- The extract ratio when relevant.
- The ingredient amount per serving.
- Any declared standardization.
- Finished-product or raw-material identity testing.
A label may reasonably show the accepted name followed by a familiar synonym, or the familiar name followed by the accepted name. This can help both consumers and technical readers recognize the ingredient.
The editorial approach used by Secrets Of The Tribe is to preserve the label’s original wording while explaining the current accepted taxonomy nearby. This avoids silently rewriting product data and still gives readers the updated botanical context.
How should the name be written in an article or product database?
For current botanical accuracy, use Corynanthe johimbe K.Schum. as the accepted name when following Kew Plants of the World Online.
At the first mention, you can include the familiar synonym:
Corynanthe johimbe K.Schum., synonym Pausinystalia johimbe.
You may also note that Pausinystalia yohimbe remains common in medical and supplement literature. After the first explanation, use one name consistently unless the article compares source terminology.
Scientific formatting rules
Capitalize the genus and use lowercase for the species epithet. Italicize both words. Do not capitalize the complete binomial as “Pausinystalia Yohimbe” inside formal botanical prose.
The author abbreviation is not italicized. A properly formatted accepted name is Corynanthe johimbe K.Schum.
Common names such as yohimbe are written in regular type and lowercase unless they begin a sentence.
Botanical Name Verification Checklist
Use this checklist when a label, article, or database shows an unfamiliar yohimbe name. The goal is to determine whether it is a synonym, spelling variant, or potentially different ingredient.
Copy the complete name
Record both the genus and species exactly as written. Do not search only the word yohimbe.
Check the accepted name
Use a recognized botanical authority to see which scientific name it currently accepts.
Review the synonym list
Confirm whether the unfamiliar name is formally connected to the accepted species.
Compare the spelling
Note differences such as johimbe, yohimbe, or yohimba. Determine whether the variation appears in established records.
Verify the plant family
The expected species belongs to Rubiaceae. A different family may signal a different plant or a labeling error.
Confirm the plant part
Check whether the ingredient identifies bark rather than only naming the species.
Separate taxonomy from testing
A valid scientific name does not prove that the supplied material was authenticated.
Preserve the original label wording
When documenting a product, quote the name as printed and explain the accepted synonym separately.
Can the botanical name reveal the yohimbine amount?
No. A botanical name identifies the intended species. It does not show how much yohimbine is present in the bark, extract, capsule, or tincture.
Yohimbine concentration may vary between raw materials and finished products. A correct species name therefore cannot replace analytical measurement, standardization details, or batch testing.
The names Corynanthe johimbe and Pausinystalia johimbe address taxonomy. Yohimbine content addresses chemical composition. These are separate questions.
Does the name difference change the safety considerations?
No. When the names refer to the same species, changing the genus or spelling does not create a different safety profile.
Yohimbe products may contain variable amounts of yohimbine. Reported concerns include changes in blood pressure, rapid heartbeat, anxiety, agitation, dizziness, digestive discomfort, and sleep disturbance. Serious adverse events have also been reported.
Product form, concentration, medication use, individual health factors, and labeling accuracy matter more than whether a source uses Corynanthe or Pausinystalia.
This article addresses botanical identification. It does not provide dosing guidance or establish that a product is appropriate for a particular person.
FAQ
Is Pausinystalia yohimbe the same as Corynanthe johimbe?
Yes. The names generally refer to the same yohimbe species under different taxonomic and spelling conventions.
Which yohimbe botanical name is currently accepted?
Kew Plants of the World Online currently accepts Corynanthe johimbe K.Schum.
Is Pausinystalia johimbe an invalid name?
No. It is a published botanical synonym based on the same original species name.
Why does NCCIH use Pausinystalia yohimbe?
Medical and consumer references often retain terminology that remains common in health and supplement literature.
Are johimbe and yohimbe different species?
Usually not. Johimbe is the accepted botanical epithet, while yohimbe is the familiar common-name spelling.
Does a spelling difference prove that a label is false?
No. The difference may reflect a synonym or spelling convention, but the complete label and identity documentation should still be checked.
Should a scientific plant name be capitalized?
Capitalize only the genus. Write the species epithet in lowercase and italicize both words.
Does the botanical name show how much yohimbine is present?
No. Yohimbine content requires separate chemical analysis or a clearly supported standardization declaration.
Glossary
Accepted name – The scientific name currently preferred by a particular taxonomic authority.
Author abbreviation – The shortened name of the person who formally published a botanical name.
Basionym – The original published name on which a later taxonomic combination is based.
Binomial – A two-part scientific name consisting of a genus and species epithet.
Common name – A non-scientific name used in everyday language, such as yohimbe.
Genus – A taxonomic group containing one or more related species.
Homotypic synonym – A botanical synonym based on the same nomenclatural type as another name.
Rubiaceae – The botanical family that includes coffee and yohimbe.
Species epithet – The second word in a botanical binomial, such as johimbe.
Synonym – An alternative scientific name connected to the same taxon.
Conclusion
Corynanthe johimbe is the accepted Kew name, while Pausinystalia johimbe is a synonym and Pausinystalia yohimbe remains common in health literature. The name difference usually reflects taxonomy and spelling history, not a separate ingredient.
Sources Used
Accepted name, synonyms, classification, and native range, Corynanthe johimbe K.Schum. – powo.science.kew.org/taxon/urn:lsid:ipni.org:names:747599-1
Original publication and basionym record, Corynanthe johimbe K.Schum. – ipni.org/n/747599-1
Publication and nomenclatural history of the Pausinystalia combination, Pausinystalia johimbe – ipni.org/n/60458147-2
Medical usage of Pausinystalia yohimbe and general yohimbe information, Yohimbe: Usefulness and Safety – nccih.nih.gov/health/yohimbe
Species classification, synonyms, and common names, Corynanthe johimbe K.Schum. – gbif.org/species/2909155
