Toxicodendron
E135611
Toxicodendron is a genus of plants best known for species like poison ivy and poison oak, which cause allergic skin reactions in many people.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Toxicodendron canonical | 15 |
| Rhus subgenus Toxicodendron | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1106307 — 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: Toxicodendron Context triple: [Anacardiaceae, notableAllergenicGenera, Toxicodendron]
-
A.
Toxicodendron radicans
Toxicodendron radicans is a North American woody vine or shrub commonly known as poison ivy, notorious for causing allergic skin reactions through contact with its urushiol-containing leaves and stems.
-
B.
Toxicodendron vernix
Toxicodendron vernix is a North American shrub or small tree commonly known as poison sumac, notorious for causing severe allergic skin reactions through its urushiol-containing sap.
-
C.
Toxicodendron diversilobum
Toxicodendron diversilobum is a woody shrub or vine native to western North America, commonly known as Pacific poison oak, notorious for causing allergic skin reactions upon contact.
-
D.
Rhus
Rhus is a genus of flowering plants commonly known as sumacs, which includes shrubs and small trees often recognized for their compound leaves and clusters of red or white berries.
-
E.
Urtica
Urtica is a genus of herbaceous plants best known for its stinging nettles, which have tiny hairs that can irritate the skin.
- 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: Toxicodendron Target entity description: Toxicodendron is a genus of plants best known for species like poison ivy and poison oak, which cause allergic skin reactions in many people.
-
A.
Toxicodendron radicans
Toxicodendron radicans is a North American woody vine or shrub commonly known as poison ivy, notorious for causing allergic skin reactions through contact with its urushiol-containing leaves and stems.
-
B.
Toxicodendron vernix
Toxicodendron vernix is a North American shrub or small tree commonly known as poison sumac, notorious for causing severe allergic skin reactions through its urushiol-containing sap.
-
C.
Toxicodendron diversilobum
Toxicodendron diversilobum is a woody shrub or vine native to western North America, commonly known as Pacific poison oak, notorious for causing allergic skin reactions upon contact.
-
D.
Rhus
Rhus is a genus of flowering plants commonly known as sumacs, which includes shrubs and small trees often recognized for their compound leaves and clusters of red or white berries.
-
E.
Urtica
Urtica is a genus of herbaceous plants best known for its stinging nettles, which have tiny hairs that can irritate the skin.
- F. None of above. chosen
Statements (59)
| Predicate | Object |
|---|---|
| instanceOf |
plant genus
ⓘ
taxon ⓘ |
| causes |
allergic contact dermatitis
ⓘ
itchy skin rash in humans ⓘ |
| class | Magnoliopsida ⓘ |
| commonName | poison ivy genus ⓘ |
| containsTaxon |
Toxicodendron diversilobum
ⓘ
Toxicodendron orientale ⓘ Toxicodendron potaninii ⓘ Toxicodendron pubescens ⓘ Toxicodendron radicans ⓘ Toxicodendron radicans subsp. negundo ⓘ
linked to:
Toxicodendron radicans
Toxicodendron radicans subsp. orientale ⓘ Toxicodendron radicans subsp. radicans ⓘ Toxicodendron rydbergii ⓘ Toxicodendron striatum ⓘ Toxicodendron succedaneum ⓘ Toxicodendron succedaneum var. hispidum ⓘ
linked to:
Toxicodendron succedaneum var. succedaneum
Toxicodendron succedaneum var. succedaneum ⓘ Toxicodendron sylvestre ⓘ Toxicodendron trichocarpum ⓘ Toxicodendron vernicifluum ⓘ Toxicodendron vernix ⓘ |
| distribution |
Asia
ⓘ
Central America ⓘ North America ⓘ Pacific Islands ⓘ South America ⓘ |
| division | Magnoliophyta ⓘ |
| ecologicalRole |
food source for birds
ⓘ
understory vegetation component ⓘ |
| family | Anacardiaceae ⓘ |
| flowerType | small greenish flowers ⓘ |
| fruitColor |
whitish
ⓘ
yellowish ⓘ |
| fruitType | drupe ⓘ |
| growthForm |
small tree
ⓘ
vine ⓘ woody shrub ⓘ |
| habitat |
forest edges
ⓘ
shrublands ⓘ woodlands ⓘ |
| hasSynonym |
Rhus subgenus Toxicodendron
ⓘ
linked to:
Toxicodendron
|
| kingdom | Plantae ⓘ |
| leafType | pinnately compound leaves ⓘ |
| namedBy | Otto Kuntze ⓘ |
| notableFor | causing allergic contact dermatitis in humans ⓘ |
| notableSpecies |
Atlantic poison oak (Toxicodendron pubescens)
ⓘ
poison ivy (Toxicodendron radicans) ⓘ
linked to:
Toxicodendron radicans
poison sumac (Toxicodendron vernix) ⓘ western poison oak (Toxicodendron diversilobum) ⓘ |
| order | Sapindales ⓘ |
| produces | urushiol ⓘ |
| relatedTo | Rhus ⓘ |
| reproductiveType | dioecious ⓘ |
| taxonRank | genus ⓘ |
| toxinType | allergen ⓘ |
| typeOf | flowering plant genus ⓘ |
| usedFor | traditional lacquer production (some Asian species) ⓘ |
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: Toxicodendron Description of subject: Toxicodendron is a genus of plants best known for species like poison ivy and poison oak, which cause allergic skin reactions in many people.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.