Quercus lobata
E1044988
Quercus lobata, commonly known as the valley oak, is a large, long-lived oak tree native to California’s valleys and foothills, noted for its massive trunk, deeply lobed leaves, and importance to local ecosystems.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Quercus lobata canonical | 1 |
| valley oak | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13396860 — 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: Quercus lobata Context triple: [Quercus, hasSpecies, Quercus lobata]
-
A.
Quercus douglasii
Quercus douglasii, commonly known as blue oak, is a drought-tolerant deciduous oak tree native to California’s interior woodlands and foothills.
-
B.
Quercus agrifolia
Quercus agrifolia, commonly known as the coast live oak, is an evergreen oak tree native to coastal California and northern Baja California, where it is a dominant species in many woodland and chaparral habitats.
-
C.
Quercus chrysolepis
Quercus chrysolepis, commonly known as canyon live oak, is an evergreen oak tree native to western North America, notable for its hard, dense wood and adaptability to a wide range of mountainous habitats.
-
D.
Quercus wislizeni
Quercus wislizeni is an evergreen oak tree species native to California, commonly found in the Sierra Nevada foothills and surrounding regions.
-
E.
Quercus macrocarpa
Quercus macrocarpa, commonly known as bur oak, is a large, long-lived North American oak tree species noted for its thick, fire-resistant bark and distinctive fringed acorns.
- 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: Quercus lobata Target entity description: Quercus lobata, commonly known as the valley oak, is a large, long-lived oak tree native to California’s valleys and foothills, noted for its massive trunk, deeply lobed leaves, and importance to local ecosystems.
-
A.
Quercus douglasii
Quercus douglasii, commonly known as blue oak, is a drought-tolerant deciduous oak tree native to California’s interior woodlands and foothills.
-
B.
Quercus agrifolia
Quercus agrifolia, commonly known as the coast live oak, is an evergreen oak tree native to coastal California and northern Baja California, where it is a dominant species in many woodland and chaparral habitats.
-
C.
Quercus chrysolepis
Quercus chrysolepis, commonly known as canyon live oak, is an evergreen oak tree native to western North America, notable for its hard, dense wood and adaptability to a wide range of mountainous habitats.
-
D.
Quercus wislizeni
Quercus wislizeni is an evergreen oak tree species native to California, commonly found in the Sierra Nevada foothills and surrounding regions.
-
E.
Quercus macrocarpa
Quercus macrocarpa, commonly known as bur oak, is a large, long-lived North American oak tree species noted for its thick, fire-resistant bark and distinctive fringed acorns.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
deciduous tree
ⓘ
species of oak ⓘ vascular plant ⓘ |
| barkCharacteristic | thick and furrowed ⓘ |
| commonName |
valley oak
ⓘ
linked to:
Quercus lobata
valley white oak ⓘ |
| conservationConcern | habitat loss from agriculture and urbanization ⓘ |
| distribution | endemic to California ⓘ |
| ecologicalRole | keystone species in California oak woodlands ⓘ |
| family |
Fagaceae
ⓘ
linked to:
oak family (Fagaceae)
|
| flowerType | inconspicuous catkins ⓘ |
| foodSourceFor |
acorn-eating birds
ⓘ
deer ⓘ squirrels ⓘ |
| genus | Quercus ⓘ |
| growthForm | large spreading tree ⓘ |
| habitat |
foothills
ⓘ
riparian woodlands ⓘ savannas ⓘ valley floors ⓘ |
| importance |
important to local ecosystems
ⓘ
supports high biodiversity ⓘ |
| kingdom | Plantae ⓘ |
| leafShape | deeply lobed ⓘ |
| leafType | deciduous ⓘ |
| lightRequirement | full sun ⓘ |
| longevity | several hundred years ⓘ |
| maximumHeight |
approximately 100 feet
ⓘ
approximately 30 meters ⓘ |
| nativeTo |
California
ⓘ
linked to:
California, United States
California Central Valley ⓘ
linked to:
Central Valley
California Coast Ranges foothills ⓘ
linked to:
Central California Coast Ranges
Sierra Nevada foothills ⓘ |
| order | Fagales ⓘ |
| pollination | wind-pollinated ⓘ |
| providesHabitatFor |
birds
ⓘ
insects ⓘ mammals ⓘ |
| reproduction | acorns ⓘ |
| soilPreference |
deep alluvial soils
ⓘ
well-drained soils ⓘ |
| taxonRank | species ⓘ |
| threat |
groundwater depletion
ⓘ
land-use change ⓘ |
| tolerates |
seasonal flooding
ⓘ
summer drought ⓘ |
| trunkCharacteristic | massive trunk ⓘ |
| usedFor | shade tree in large landscapes ⓘ |
| woodUse |
firewood
ⓘ
lumber ⓘ |
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: Quercus lobata Description of subject: Quercus lobata, commonly known as the valley oak, is a large, long-lived oak tree native to California’s valleys and foothills, noted for its massive trunk, deeply lobed leaves, and importance to local ecosystems.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Quercus lobata