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sunlight, moisture and pH calculation; county geography is an additional layer. Missing source traits remain unknown.","fit_provenance":{"counties":"USDA PLANTS: recorded in 44 NC counties","light":"Virginia DCR Piedmont","moisture":"Virginia DCR Piedmont","ph":"USDA PLANTS"},"garden_suitability":{"default_excluded":false,"flags":[],"review_status":"not_assessed"},"invasive_rank":false,"native_eligible":true,"quercus_score":88,"state":"KY"},"garden_suitability":{"default_excluded":false,"flags":[],"review_status":"not_assessed"},"growing_notes":[{"caveat":"This describes favorable conditions, not a tolerance cutoff. A high water table does not mean stagnant, waterlogged soil is suitable; clay texture does not demonstrate compaction tolerance.","note":"Northern red oak grows on several soil textures. 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distribution and native-status discovery filters do not establish local growing or bloom timing.","source":"wildflower","source_name":"Quercus rubra","source_sha256":"55cfcc431aa47021bba1b37d1534dc400d1b7de05690b574035b3328f8a79652","source_url":"https://www.wildflower.org/plants/result.php?id_plant=QURU","status":"eligible_fact","taxon_id":"taxon:767d5741-7f57-5367-a7e5-7509e30b4f3e","value":["Sun","Part Shade"]},{"expected_source_name":"Quercus rubra","field":"leaf_habit","original_field":"leaf_habit","record_id":"trait:e8293a9263f6ade8f0cc655caf6040464d18803f3d8b179a8290db1819ee1d1b","retrieved_at":"2026-10-03T21:54:18.408120+00:00","scope":{"kind":"unspecified"},"scope_note":"Species profile; distribution and native-status discovery filters do not establish local growing or bloom timing.","source":"wildflower","source_name":"Quercus rubra","source_sha256":"55cfcc431aa47021bba1b37d1534dc400d1b7de05690b574035b3328f8a79652","source_url":"https://www.wildflower.org/plants/result.php?id_plant=QURU","status":"eligible_fact","taxon_id":"taxon:767d5741-7f57-5367-a7e5-7509e30b4f3e","value":["Deciduous"]}],"values":{"flower_color":["Yellow","Green","Brown"],"height_description":"Up to about 120 feet","leaf_habit":["Deciduous"],"life_cycle":["Perennial"],"light":["Sun","Part Shade"],"moisture_categories":["Dry","Moist"],"soil_ph_categories":["Acidic (pH<6.8)"]}}},"light_range":["part shade","full sun"],"light_source":"Virginia DCR Piedmont","native_synthesis":{"claims":[{"basis":"unanimous_direct_child_native_flags","claim":"native","matched_name":"Quercus rubra","scope":"TN-KY","source":"tnky_atlas","supporting_taxa":[{"atlas_id":2,"native_flag":"Y","scientific_name":"Quercus rubra var. ambigua","url":"https://tennessee-kentucky.plantatlas.usf.edu/plant/species/2"},{"atlas_id":278,"native_flag":"Y","scientific_name":"Quercus rubra var. rubra","url":"https://tennessee-kentucky.plantatlas.usf.edu/plant/species/278"}],"url":"https://tennessee-kentucky.plantatlas.usf.edu/plant/species/3920"},{"claim":"native","matched_name":"Quercus rubra","scope":"L48","source":"usda","text":"CAN:N L48:N","url":"https://plants.usda.gov/"},{"claim":"native","matched_name":"Quercus rubra","scope":"NC","source":"nc_flora","url":"https://auth1.dpr.ncparks.gov/flora/"}],"county_native_range":"unresolved","explanation":"Source scopes are preserved. State occurrence alone does not establish nativity; combined regional evidence is labeled estimated.","label":"Native to Kentucky (estimated from combined sources)","rule":"southeast-native-synthesis-1","status":"native_inferred"},"source_name":"Quercus rubra","taxon_id":"taxon:767d5741-7f57-5367-a7e5-7509e30b4f3e","revision":"publish:5809c037-0e9a-430a-8008-5ab6f69800c0","photos":[{"id":"recovery-ncsu-quercus-rubra-36498","src":"/api/photos/image/17d58ed26553979965633b16c3b89c79f80dff70ebfd1a73a7e24670558dabc5.jpg","view":"leaf","alt":"Quercus rubra — leaf photograph","width":998,"height":1024,"artist":"Cathy DeWitt","license":"CC BY 4.0","license_url":"http://creativecommons.org/licenses/by/4.0/legalcode","source_url":"https://plants.ces.ncsu.edu/plants/quercus-rubra/","changes":"Original NCSU photograph bytes; no crop, retouching, or re-encoding."}]}