{"id":"chamaecyparis-obtusa","license":"CC-BY-4.0","data":{"scientificName":"Chamaecyparis obtusa","commonNames":["Hinoki falsecypress"],"taxonRank":"species","acceptedName":"Chamaecyparis obtusa","family":"Cupressaceae","ids":{"usdaSymbol":"CHOB8","gbifKey":2683849,"itisTsn":505932,"wikidataQid":"Q917187","inatTaxonId":133369},"usdaZoneMin":"5a","zoneSource":"fps-2016","states":["DC","DE","MD","NJ","OH","PA","WV"],"statusAssertions":[{"status":"introduced-established","channel":"ecological","geography":{"grain":"aggregate-region","regions":["L48"]},"source":"us-riis-v2","sourceRecordId":"USRIIS-L48-Plantae12637","sourceVersion":"2.0 (November 2022)","asOf":"2022-10-23T00:00:00.000Z","sourceModified":"2020-02-21T00:00:00.000Z","sourceTaxon":{"name":"Chamaecyparis obtusa","rank":"species","rawRank":"Species"},"sourceDesignation":{"code":"C3","label":"established (category C3)"},"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"}}],"hardinessAssertions":[{"minimum":"5","interpretation":"ambiguous-single-value","precision":"whole-zone","zoneMapping":"source-stated","applicability":"uncertain","applicabilityNotes":"The recovered selector prints one Cold Hardiness Zone value but does not define it as a minimum threshold or a one-zone range.","source":"fps-eastern-us","sourceRecordId":"chamaecyparis-obtusa","sourceTaxon":"Chamaecyparis obtusa","taxonMatch":"exact","sourcePlacement":"Cold Hardiness Zone field in the recovered selector record","sourceVersion":"2016-wayback","asOf":"2026-08-26T00:00:00.000Z"},{"minimum":"5","maximum":"8","interpretation":"explicit-range","precision":"whole-zone","zoneMapping":"source-stated","applicability":"applicable","source":"msu-e2948","sourceRecordId":"shrub:Chamaecyparis obtusa","sourceTaxon":"Chamaecyparis obtusa","taxonMatch":"exact","sourcePlacement":"Table 1, shrub row","sourceVersion":"New, January 2007","asOf":"2026-08-26T00:00:00.000Z"}],"plantForm":"shrub","matureHeightFt":10,"sun":"full","photo":{"file":"/images/plants/chamaecyparis-obtusa.jpg","sourceUrl":"https://www.inaturalist.org/photos/31655684","observationUrl":"https://www.inaturalist.org/observations/20509221","license":"cc-by","attribution":"(c) 呂一起(Lyu yi-chi), some rights reserved (CC BY)","fetchedOn":"2026-08-23T00:00:00.000Z"},"evidence":[{"source":"fps-eastern-us","verdict":"avoid","verdictRaw":"NOT Firewise (4)","claims":"Branches form in fans-many sizes available.","sourcePlacement":{"value":"LZ2","scheme":"fps-landscape-zone"},"edition":"2016-wayback","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"osu-b921","verdict":"avoid","verdictRaw":"H flammability","claims":"Requires good drainage; variable urban adaptability.","sourcePlacement":{"value":"keep 30 ft from the home (Zone 3)","scheme":"b921-siting"},"edition":"2006","url":"http://web.archive.org/web/20070714035936/http://www.firewise.org/usa/files/ohio_plantlist.pdf","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"va-firescapes","verdict":"avoid","verdictRaw":"H flammability","claims":"Requires good drainage.","edition":"2009","url":"http://web.archive.org/web/20090709143736/http://pubs.ext.vt.edu/430/430-300/430-300.pdf","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"msu-e2948","verdict":"recommend","verdictRaw":"considered wildfire-resistant and are recommended for Michigan’s climate","claims":"Table 1 row: Chamaecyparis obtusa (Hinoki falsecypress).","edition":"New, January 2007","url":"https://web.archive.org/web/20070714035839/http://www.firewise.org/usa/files/mi_wildfire_resistant.pdf","documentDate":"2007-01-01T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"tadaki-kira-fire-classification","verdict":"mixed","verdictRaw":"中","score":{"value":2,"scale":"tadaki-kira-fire-protection-power-0-3"},"claims":"Table 10-2 prints ヒノキ in the medium fire-protection-power class. The Kagoshima reproduction says highly fire-protective trees can slow spread, promote upward dispersal of heat and smoke, and intercept flying embers.","plantPart":"whole-plant","sourcePlacement":{"value":"ヒノキ — Table 10-2","scheme":"tadaki-kira-1982-fire-protection-power"},"edition":"Hito to Shinrin (1982), Table 10-2; Kagoshima web reproduction","url":"https://www.pref.kagoshima.jp/ah12/kurashi-kankyo/sumai/kankyo/hoshin3/theme10/273.html","documentDate":"1982-11-01T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"flamits","verdict":"not-rated","verdictRaw":"calorific value (kcal/kg): 4308.77","score":{"value":4308.77,"scale":"FLAMITS — calorific value (kcal/kg)"},"claims":"FLAMITS record 3605; Combustibility measurement; plant part bark; fuel dead; predrying no; device thermal analyzer; site Gani2007-1; sampling ND. Primary study Gani2007: Gani, A., & Naruse, I. (2007). Effect of cellulose and lignin content on pyrolysis and combustion characteristics for several types of biomass. Renewable energy, 32, 649-661.","plantPart":"bark","original":"Gani2007","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":"maximum flame temperature (°C): 641.8866667","score":{"value":641.8866667,"scale":"FLAMITS — maximum flame temperature (°C)"},"claims":"FLAMITS record 15554; Combustibility measurement; plant part leaves; fuel all; predrying yes; device burning bench; site Zhang2022-1; sampling january and march 2011. Primary study Zhang2022: Zhang, S., Cornwell, W. K., Zhao, W., van Logtestijn, R. S., Krab, E. J., Aerts, R., & Cornelissen, J. H. (2022). Experimental evidence that leaf litter decomposability and flammability are decoupled across gymnosperm species. Journal of Ecology, 111, 761-772.","plantPart":"leaf","original":"Zhang2022","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":"flaming duration (s): 3.333333333","score":{"value":3.333333333,"scale":"FLAMITS — flaming duration (s)"},"claims":"FLAMITS record 15595; Sustainability measurement; plant part leaves; fuel all; predrying yes; device burning bench; site Zhang2022-1; sampling january and march 2011. Primary study Zhang2022: Zhang, S., Cornwell, W. K., Zhao, W., van Logtestijn, R. S., Krab, E. J., Aerts, R., & Cornelissen, J. H. (2022). Experimental evidence that leaf litter decomposability and flammability are decoupled across gymnosperm species. Journal of Ecology, 111, 761-772.","plantPart":"leaf","original":"Zhang2022","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":"mixed-evidence","ratingReason":"disputed","recommendation":"conflict","author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-23T00:00:00.000Z","reviewNotes":"Photo auto-selected (top-voted iNat); human review pending."},"localAssessmentInputs":{"stateDistribution":["DC","DE","MD","NJ","OH","PA","WV"],"nativeStates":[],"rangeAssertions":[{"relation":"documented-occurrence","geography":{"grain":"state","stateCodes":["DC","DE","MD","NJ","OH","PA","WV"]},"provenance":"legacy-field"}],"usdaZoneMin":"5a","usdaZoneMax":null,"hardinessAssertions":[{"minimum":"5","interpretation":"ambiguous-single-value","precision":"whole-zone","zoneMapping":"source-stated","applicability":"uncertain","applicabilityNotes":"The recovered selector prints one Cold Hardiness Zone value but does not define it as a minimum threshold or a one-zone range.","source":"fps-eastern-us","sourceRecordId":"chamaecyparis-obtusa","sourceTaxon":"Chamaecyparis obtusa","taxonMatch":"exact","sourcePlacement":"Cold Hardiness Zone field in the recovered selector record","sourceVersion":"2016-wayback","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"},{"minimum":"5","maximum":"8","interpretation":"explicit-range","precision":"whole-zone","zoneMapping":"source-stated","applicability":"applicable","source":"msu-e2948","sourceRecordId":"shrub:Chamaecyparis obtusa","sourceTaxon":"Chamaecyparis obtusa","taxonMatch":"exact","sourcePlacement":"Table 1, shrub row","sourceVersion":"New, January 2007","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"}],"hardinessSelection":{"status":"selected","assertion":{"minimum":"5","maximum":"8","interpretation":"explicit-range","precision":"whole-zone","zoneMapping":"source-stated","applicability":"applicable","source":"msu-e2948","sourceRecordId":"shrub:Chamaecyparis obtusa","sourceTaxon":"Chamaecyparis obtusa","taxonMatch":"exact","sourcePlacement":"Table 1, shrub row","sourceVersion":"New, January 2007","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"},"assertions":[{"minimum":"5","interpretation":"ambiguous-single-value","precision":"whole-zone","zoneMapping":"source-stated","applicability":"uncertain","applicabilityNotes":"The recovered selector prints one Cold Hardiness Zone value but does not define it as a minimum threshold or a one-zone range.","source":"fps-eastern-us","sourceRecordId":"chamaecyparis-obtusa","sourceTaxon":"Chamaecyparis obtusa","taxonMatch":"exact","sourcePlacement":"Cold Hardiness Zone field in the recovered selector record","sourceVersion":"2016-wayback","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"},{"minimum":"5","maximum":"8","interpretation":"explicit-range","precision":"whole-zone","zoneMapping":"source-stated","applicability":"applicable","source":"msu-e2948","sourceRecordId":"shrub:Chamaecyparis obtusa","sourceTaxon":"Chamaecyparis obtusa","taxonMatch":"exact","sourcePlacement":"Table 1, shrub row","sourceVersion":"New, January 2007","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"}]},"invasiveIn":[],"statusAssertions":[{"status":"introduced-established","channel":"ecological","geography":{"grain":"aggregate-region","regions":["L48"]},"source":"us-riis-v2","sourceRecordId":"USRIIS-L48-Plantae12637","sourceVersion":"2.0 (November 2022)","asOf":"2022-10-23T00:00:00.000Z","sourceModified":"2020-02-21T00:00:00.000Z","sourceTaxon":{"name":"Chamaecyparis obtusa","rank":"species","rawRank":"Species"},"sourceDesignation":{"code":"C3","label":"established (category C3)"},"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":"mixed-evidence","recommendation":"conflict","fireSourceScopes":[{"source":"msu-e2948","sourceName":"Wildfire-resistant Landscape Plants for Michigan (Extension Bulletin E2948)","sourceUrl":"https://web.archive.org/web/20070714035839/http://www.firewise.org/usa/files/mi_wildfire_resistant.pdf","geography":{"grain":"state","stateCodes":["MI"]},"completeness":"partial","reviewStatus":"reviewed","scope":"Michigan State University Extension Bulletin E2948 is explicitly a list of wildfire-resistant landscape plants for Michigan and includes a Michigan-native field. FireApproved publishes 221 exact GBIF owners from 226 represented source rows and holds 15 complex or non-exact rows. This dated publication scope is not a current site-suitability determination.","sourceVersion":"MSU-Extension-E2948-2007","asOf":"2007-01-01T00:00:00.000Z"},{"source":"osu-b921","sourceName":"Firewise Landscaping (OSU Extension Bulletin 921)","sourceUrl":"http://web.archive.org/web/20070714035936/http://www.firewise.org/usa/files/ohio_plantlist.pdf","geography":{"grain":"state","stateCodes":["OH"]},"completeness":"partial","reviewStatus":"reviewed","scope":"Ohio State University Extension Bulletin 921 is an Ohio publication that describes Ohio fire seasons and landscape conditions and labels nativity to Ohio. FireApproved publishes 352 exact source-owning plant records from its eight rated tables. This historical publication scope does not assert current extension endorsement or that a listed plant suits every Ohio site.","sourceVersion":"OSU-Extension-Bulletin-921-2006","asOf":"2006-03-01T00:00:00.000Z"},{"source":"va-firescapes","sourceName":"Virginia Firescapes — Firewise Landscaping for Woodland Homes (430-300)","sourceUrl":"http://web.archive.org/web/20090709143736/http://pubs.ext.vt.edu/430/430-300/430-300.pdf","geography":{"grain":"state","stateCodes":["VA"]},"completeness":"partial","reviewStatus":"reviewed","scope":"Virginia Cooperative Extension's publication opens with Virginia wildfire conditions, identifies its Virginia Firewise Landscaping Task Force, and labels plants native to Virginia. FireApproved publishes 306 exact source owners. Publication scope does not establish parcel suitability or current endorsement of this archived 2009 list.","sourceVersion":"Virginia-VCE-430-300-2009","asOf":"2009-04-15T00:00:00.000Z"}],"firePerformanceConditions":[],"maintenanceAssertions":[],"maintenanceConditions":null,"regulatoryReviews":{},"seedReviews":{}},"legacyCompatibilityProjection":{"nativeStates":[],"invasiveIn":[],"usdaZoneMin":"5","usdaZoneMax":"8"},"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."}