{"id":"juglans-mandshurica","license":"CC-BY-4.0","data":{"scientificName":"Juglans mandshurica","commonNames":["Manchurian walnut"],"taxonRank":"species","acceptedName":"Juglans mandshurica","family":"Juglandaceae","ids":{"usdaSymbol":"JUMA8","gbifKey":4205640},"regions":["China"],"rangeAssertions":[{"relation":"introduced","geography":{"grain":"state","stateCodes":["MD"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 MRY — Maryland"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["NY"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 NWY — New York"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"}],"invasiveIn":[{"state":"L48","status":"invasive-reported","source":"us-riis"}],"statusAssertions":[{"status":"invasive","channel":"ecological","geography":{"grain":"aggregate-region","regions":["L48"]},"source":"us-riis-v2","sourceRecordId":"USRIIS-L48-Plantae12701","sourceVersion":"2.0 (November 2022)","asOf":"2022-10-23T00:00:00.000Z","sourceModified":"2020-02-21T00:00:00.000Z","sourceTaxon":{"name":"Juglans mandshurica","rank":"species","rawRank":"Species"},"sourceDesignation":{"code":"D2","label":"invasive (category D2)"},"associatedReferences":["Kleunen et al. (2018), https://esajournals.onlinelibrary.wiley.com/doi/full/10.1002/ecy.2542"],"taxonProjection":{"basis":"exact-taxon","notes":"exact source identifier, rank, family, and scientific/accepted name"}}],"plantForm":"tree","photo":{"file":"/images/plants/juglans-mandshurica.jpg","sourceUrl":"https://www.inaturalist.org/photos/535852040","observationUrl":"https://www.inaturalist.org/observations/297534279","license":"cc-by","attribution":"(c) Валерия Ковалева, some rights reserved (CC BY)","fetchedOn":"2026-08-24T00:00:00.000Z"},"evidence":[{"source":"shan-2003-leaf-fire-ranking","verdict":"recommend","verdictRaw":"Author-named best fire resistance","claims":"The authors place 胡桃楸 among the ten taxa with the best fire resistance after factor analysis of six litter-leaf traits.","claimOriginal":"抗火性最好","plantPart":"litter","condition":"cured","edition":"2003","url":"https://html.rhhz.net/linyekexue/html/20030118.htm","documentDate":"2003-01-01T00:00:00.000Z","accessedOn":"2026-08-24T00:00:00.000Z"},{"source":"flamits","verdict":"not-rated","verdictRaw":"temperature at flaming (°C): 282","score":{"value":282,"scale":"FLAMITS — temperature at flaming (°C)"},"claims":"FLAMITS record 12536; Ignitability measurement; plant part leaves; fuel live; predrying no; device ignition temperature tester; site Shan2008-1; sampling ND. Primary study Shan2008: Shan, Y., Liu, N., & Shu, L. (2008). Flammability ranking of foliage species by factor analysis of physical and chemical pyric properties. Fire and Materials: An International Journal, 32, 371-382.","plantPart":"leaf","original":"Shan2008","edition":"Dryad version 9","url":"https://doi.org/10.5061/dryad.h18931zr3","documentDate":"2023-12-22T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"flamits","verdict":"not-rated","verdictRaw":"calorific value (kcal/kg): 4776.52","score":{"value":4776.52,"scale":"FLAMITS — calorific value (kcal/kg)"},"claims":"FLAMITS record 12537; Combustibility measurement; plant part leaves; fuel live; predrying no; device calorimeter; site Shan2008-1; sampling ND. Primary study Shan2008: Shan, Y., Liu, N., & Shu, L. (2008). Flammability ranking of foliage species by factor analysis of physical and chemical pyric properties. Fire and Materials: An International Journal, 32, 371-382.","plantPart":"leaf","original":"Shan2008","edition":"Dryad version 9","url":"https://doi.org/10.5061/dryad.h18931zr3","documentDate":"2023-12-22T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"}],"flammabilityClass":"fire-resistant","ratingReason":"limited-evidence","recommendation":"on-list","author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-24T00:00:00.000Z","reviewNotes":"Photo selected from license-verified candidates and human-reviewed 2026-08-24 (joint session)."},"localAssessmentInputs":{"stateDistribution":[],"nativeStates":[],"rangeAssertions":[{"relation":"introduced","geography":{"grain":"state","stateCodes":["MD"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 MRY — Maryland"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["NY"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 NWY — New York"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"}],"usdaZoneMin":null,"usdaZoneMax":null,"hardinessAssertions":[],"hardinessSelection":{"status":"none","assertions":[]},"invasiveIn":[{"state":"L48","status":"invasive-reported","source":"us-riis"}],"statusAssertions":[{"status":"invasive","channel":"ecological","geography":{"grain":"aggregate-region","regions":["L48"]},"source":"us-riis-v2","sourceRecordId":"USRIIS-L48-Plantae12701","sourceVersion":"2.0 (November 2022)","asOf":"2022-10-23T00:00:00.000Z","sourceModified":"2020-02-21T00:00:00.000Z","sourceTaxon":{"name":"Juglans mandshurica","rank":"species","rawRank":"Species"},"sourceDesignation":{"code":"D2","label":"invasive (category D2)"},"associatedReferences":["Kleunen et al. (2018), https://esajournals.onlinelibrary.wiley.com/doi/full/10.1002/ecy.2542"],"taxonProjection":{"basis":"exact-taxon","notes":"exact source identifier, rank, family, and scientific/accepted name"},"provenance":"cited"}],"fireEvidenceClass":"fire-resistant","recommendation":"on-list","fireSourceScopes":[],"firePerformanceConditions":[{"condition":"cured","evidence":[{"source":"shan-2003-leaf-fire-ranking","verdict":"recommend","url":"https://html.rhhz.net/linyekexue/html/20030118.htm","claims":"The authors place 胡桃楸 among the ten taxa with the best fire resistance after factor analysis of six litter-leaf traits.","evidenceIndex":0}]}],"maintenanceAssertions":[],"maintenanceConditions":null,"regulatoryReviews":{},"seedReviews":{}},"legacyCompatibilityProjection":{"nativeStates":[],"invasiveIn":[{"state":"L48","status":"invasive-reported","source":"us-riis-v2"}]},"localAssessmentContract":"Compare each dimension separately. State noxious-weed seed designations are material-scoped and never become non-seed plant restrictions, ecological-invasive findings, nursery restrictions, alternatives, product evidence, or fire votes. Introduced/established context is not an invasive warning. Minimum-only hardiness has no inferred maximum; canonical source-temperature conversion is validated and contradictory applicable rows project no primary zone. L48 context applies only to conterminous states and is never exact-state status. Fire-performance conditions are not maintenance advice. FEIS fire-ecology context does not vote in the plant classification. Absence of a status row is not regulatory clearance."}