Juglans nigra
E1040785
Juglans nigra, commonly known as black walnut, is a large North American hardwood tree valued for its dark, high-quality timber and edible nuts.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Juglans nigra canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13395646 — 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: Juglans nigra Context triple: [Juglandaceae, notableMember, Juglans nigra]
-
A.
Juglans regia
Juglans regia, commonly known as the English or Persian walnut, is a widely cultivated deciduous tree valued for its edible nuts and high-quality timber.
-
B.
Castanea
Castanea is a genus of deciduous trees and shrubs commonly known as chestnuts, valued for their edible nuts and durable timber.
-
C.
Nyssa
Nyssa is a companion of the Fifth Doctor in the long-running British science fiction television series Doctor Who.
-
D.
Nyssa
Nyssa is a small genus of deciduous trees native to North America and East Asia, commonly known as tupelos or gum trees, valued for their attractive foliage and ecological importance.
-
E.
Ostrya
Ostrya is a genus of deciduous hardwood trees commonly known as hop-hornbeams, recognized for their hop-like fruit clusters and strong, durable wood.
- 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: Juglans nigra Target entity description: Juglans nigra, commonly known as black walnut, is a large North American hardwood tree valued for its dark, high-quality timber and edible nuts.
-
A.
Juglans regia
Juglans regia, commonly known as the English or Persian walnut, is a widely cultivated deciduous tree valued for its edible nuts and high-quality timber.
-
B.
Castanea
Castanea is a genus of deciduous trees and shrubs commonly known as chestnuts, valued for their edible nuts and durable timber.
-
C.
Nyssa
Nyssa is a companion of the Fifth Doctor in the long-running British science fiction television series Doctor Who.
-
D.
Nyssa
Nyssa is a small genus of deciduous trees native to North America and East Asia, commonly known as tupelos or gum trees, valued for their attractive foliage and ecological importance.
-
E.
Ostrya
Ostrya is a genus of deciduous hardwood trees commonly known as hop-hornbeams, recognized for their hop-like fruit clusters and strong, durable wood.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
angiosperm
ⓘ
deciduous tree ⓘ hardwood tree ⓘ tree species ⓘ vascular plant ⓘ |
| allelopathy | inhibits growth of some nearby plants ⓘ |
| barkColor | dark brown to black ⓘ |
| chemicalProperty | produces juglone ⓘ |
| commonName | black walnut ⓘ |
| ecologicalRole |
provides food for wildlife
ⓘ
provides habitat for wildlife ⓘ |
| family | Juglandaceae ⓘ |
| floweringSeason | spring ⓘ |
| flowerType | monoecious flowers ⓘ |
| fruitMaturation | autumn ⓘ |
| fruitType | nut ⓘ |
| genus | Juglans ⓘ |
| growthForm | large canopy tree ⓘ |
| habitat |
rich bottomlands
ⓘ
well-drained soils ⓘ |
| height |
30–40 meters
ⓘ
approximately 100–130 feet ⓘ |
| introducedTo |
Asia
ⓘ
Europe ⓘ |
| kingdom | Plantae ⓘ |
| leafArrangement | alternate ⓘ |
| leafPersistence | deciduous ⓘ |
| leafType | pinnately compound leaves ⓘ |
| lifespan | long-lived tree ⓘ |
| nativeTo |
North America
ⓘ
eastern United States ⓘ |
| nutFlavor | strong distinctive flavor ⓘ |
| nutShell | thick hard shell ⓘ |
| nutUse |
culinary ingredient
ⓘ
edible seed ⓘ |
| order | Fagales ⓘ |
| pollination | wind-pollinated ⓘ |
| taxonRank | species ⓘ |
| valuedFor |
dark timber
ⓘ
edible nuts ⓘ high-quality wood ⓘ |
| woodColor | dark brown ⓘ |
| woodProperty |
dimensionally stable
ⓘ
durable ⓘ |
| woodType | hardwood ⓘ |
| woodUse |
cabinetry
ⓘ
furniture ⓘ gunstocks ⓘ veneer ⓘ |
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: Juglans nigra Description of subject: Juglans nigra, commonly known as black walnut, is a large North American hardwood tree valued for its dark, high-quality timber and edible nuts.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.