soapbark tree
E806361
The soapbark tree is an evergreen South American tree whose bark is rich in saponins, historically used as a natural soap and now widely used as a foaming agent and vaccine adjuvant.
All labels observed (1)
| Label | Occurrences |
|---|---|
| soapbark tree canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9575766 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: soapbark tree Context triple: [Quillajaceae, notableFor, soapbark tree]
-
A.
Nagi tree
The Nagi tree is a revered sacred tree species in Japan, often associated with Shinto shrines and believed to offer protection and good fortune.
-
B.
Sapindus
Sapindus is a genus of trees and shrubs commonly known as soapberries or soapnuts, noted for their saponin-rich fruits traditionally used as a natural soap and detergent.
-
C.
Simarouba
Simarouba is a genus of tropical trees and shrubs known for species like the paradise-tree, some of which are used for timber, traditional medicine, and oil-rich seeds.
-
D.
Blighia
Blighia is a genus of tropical flowering trees in the soapberry family best known for including the ackee tree, whose fruit is both culturally important and potentially toxic.
-
E.
Sesbania
Sesbania is a genus of fast-growing, often nitrogen-fixing leguminous plants commonly found in tropical and subtropical regions and used for green manure, fodder, and ornamental purposes.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: soapbark tree Target entity description: The soapbark tree is an evergreen South American tree whose bark is rich in saponins, historically used as a natural soap and now widely used as a foaming agent and vaccine adjuvant.
-
A.
Nagi tree
The Nagi tree is a revered sacred tree species in Japan, often associated with Shinto shrines and believed to offer protection and good fortune.
-
B.
Sapindus
Sapindus is a genus of trees and shrubs commonly known as soapberries or soapnuts, noted for their saponin-rich fruits traditionally used as a natural soap and detergent.
-
C.
Simarouba
Simarouba is a genus of tropical trees and shrubs known for species like the paradise-tree, some of which are used for timber, traditional medicine, and oil-rich seeds.
-
D.
Blighia
Blighia is a genus of tropical flowering trees in the soapberry family best known for including the ackee tree, whose fruit is both culturally important and potentially toxic.
-
E.
Sesbania
Sesbania is a genus of fast-growing, often nitrogen-fixing leguminous plants commonly found in tropical and subtropical regions and used for green manure, fodder, and ornamental purposes.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
evergreen tree
ⓘ
plant species ⓘ species ⓘ tree ⓘ |
| barkCharacteristic |
dark bark
ⓘ
rich in triterpenoid saponins ⓘ thick bark ⓘ |
| barkUsedFor |
beverage foaming
ⓘ
detergent ⓘ fire extinguisher foams ⓘ food foaming ⓘ shampoo ⓘ soap production ⓘ |
| commonNameOf | Quillaja saponaria NERFINISHED ⓘ |
| containsCompound | saponins ⓘ |
| distributionRegion |
Andes foothills
NERFINISHED
ⓘ
central Chile ⓘ |
| economicImportance |
source of commercial saponins
ⓘ
source of vaccine adjuvant QS-21 ⓘ |
| evergreen | true ⓘ |
| family | Quillajaceae NERFINISHED ⓘ |
| flowerColor | white ⓘ |
| floweringPlant | true ⓘ |
| genus | Quillaja NERFINISHED ⓘ |
| growthForm | medium-sized tree ⓘ |
| hasCommonName | soapbark tree ⓘ |
| historicallyUsedBy | indigenous peoples of Chile ⓘ |
| historicalUse |
bathing
ⓘ
washing clothes ⓘ |
| leafPersistence | evergreen leaves ⓘ |
| leafType | simple leaves ⓘ |
| maximumHeight | about 15–20 meters ⓘ |
| nativeTo |
Chile
NERFINISHED
ⓘ
South America ⓘ |
| partUsedCommercially |
inner bark
ⓘ
wood ⓘ |
| plantPartRichInSaponins | bark ⓘ |
| risk | overharvesting for bark extraction ⓘ |
| saponinExtractUsedAs |
immunological adjuvant
ⓘ
surfactant ⓘ vaccine adjuvant ⓘ |
| taxonRank | species ⓘ |
| tolerates |
dry conditions
ⓘ
poor soils ⓘ |
| usedAs |
foaming agent
ⓘ
natural soap ⓘ vaccine adjuvant source ⓘ |
| usedIn |
cosmetic industry
ⓘ
food industry ⓘ pharmaceutical industry ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: soapbark tree Description of subject: The soapbark tree is an evergreen South American tree whose bark is rich in saponins, historically used as a natural soap and now widely used as a foaming agent and vaccine adjuvant.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.