{"id":"syringa","license":"CC-BY-4.0","data":{"scientificName":"Syringa","commonNames":["Lilac"],"taxonRank":"genus","acceptedName":"Syringa","family":"Oleaceae","ids":{"usdaSymbol":"SYRIN","gbifKey":3172235,"itisTsn":32994,"wikidataQid":"Q157449","inatTaxonId":47732},"usdaZoneMin":"3a","usdaZoneMax":"7b","zoneSource":"pnw590","states":["ID","OR","WA"],"hardinessAssertions":[{"minimum":"3b","maximum":"7a","interpretation":"explicit-range","precision":"half-zone","zoneMapping":"source-stated","applicability":"applicable","source":"osu-em-9103","sourceTaxon":"Syringa spp.","taxonMatch":"exact","sourcePlacement":"Lilac profile (PDF page 134)","sourceVersion":"EM 9103, February 2015","asOf":"2026-08-26T00:00:00.000Z"},{"minimum":"3","maximum":"7","interpretation":"explicit-range","precision":"whole-zone","zoneMapping":"source-stated","applicability":"applicable","source":"pnw-590","sourceRecordId":"shrubs:Lilac","sourceTaxon":"Syringa spp.","taxonMatch":"exact","sourcePlacement":"Lilac profile, USDA hardiness zones field","sourceVersion":"2023-10","asOf":"2026-08-26T00:00:00.000Z"}],"plantForm":"shrub","photo":{"file":"/images/plants/syringa.jpg","sourceUrl":"https://www.inaturalist.org/photos/666893176","observationUrl":"https://www.inaturalist.org/observations/365246453","license":"cc-by","attribution":"(c) Jeff Hansen, some rights reserved (CC BY)","fetchedOn":"2026-08-23T00:00:00.000Z"},"evidence":[{"source":"pnw-590","verdict":"recommend","verdictRaw":"listed fire-resistant","edition":"2023","url":"https://extension.oregonstate.edu/catalog/pub/pnw-590-fire-resistant-plants-home-landscapes","documentDate":"2023-10-01T00:00:00.000Z","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: Syringa spp. (Lilac).","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":"fitzgerald-waldo-2002-osu-frn6","verdict":"recommend","verdictRaw":"Fire-Resistant Plant Materials for Oregon","claims":"Syringa species (Lilac) is listed under “Shrubs—deciduous”. The guide says most listed plants require some irrigation during Oregon's dry summer months and must be maintained in a healthy condition.","plantPart":"whole-plant","condition":"green","sourcePlacement":{"value":"Oregon","scheme":"osu-frn6-oregon-regions"},"edition":"Forest Resource Note No. 6","url":"https://www.iatp.org/sites/default/files/Fire_Resistant_Plants_for_Oregon_Home_Landscap.pdf","documentDate":"2002-04-01T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"osu-em-9103","verdict":"recommend","verdictRaw":"fire-resistant plants that thrive in Willamette Valley growing conditions","claims":"The shrubs & woody vines profile lists Syringa spp. as Lilac. The profile prints USDA Hardiness Zone: 3b–7a.","plantPart":"whole-plant","sourcePlacement":{"value":"Lilac profile (PDF page 134)","scheme":"osu-em-9103-profile"},"edition":"EM 9103, February 2015","url":"https://www.canbyfire.org/files/074d2a9e3/Fire-Resistant-Plants_Willamette-Valley.pdf","documentDate":"2015-02-01T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"osu-plant-profile-galleries","verdict":"recommend","verdictRaw":"Choose the right shrubs for your fire-resistant landscape","claims":"The Lilac profile prints Syringa species. The gallery points to PNW 590 for complete details.","plantPart":"whole-plant","sourcePlacement":{"value":"Lilac — Syringa spp.","scheme":"osu-2023-shrubs-gallery"},"edition":"November 2023 educational gallery","url":"https://extension.oregonstate.edu/gallery/fire-resistant-plant-profiles-shrubs","documentDate":"2023-11-01T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"uw-barnyards-firewise-2005","verdict":"recommend","verdictRaw":"FIRE-RESISTANT PLANTS — Examples: Lilacs","claims":"The article prints this taxon as an example beneath its fire-resistant or Firewise-landscape guidance.","plantPart":"whole-plant","edition":"Barnyards & Backyards, Spring 2005","url":"https://www.uwyo.edu/barnbackyard/_files/documents/magazine/2005/spring/firewise-spring-barnyards-2005.pdf","documentDate":"2005-01-01T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"yavapai-34","verdict":"recommend","verdictRaw":"Fire-Resistant Plants","claims":"Listed as Lilac — Syringa sp.. The bulletin says fire-resistant plants tend to resist ignition when irrigated and maintained, while fire-prone plants may ignite readily and burn intensely.","plantPart":"whole-plant","edition":"v1.2","url":"https://www.extension.arizona.edu/sites/default/files/2025-03/FirewisePlants3-14-2025.pdf","documentDate":"2025-03-14T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"greece-property-fire-regulation-2023","verdict":"recommend","verdictRaw":"παθητικά πυρίμαχα φυτά τα οποία είναι ανθεκτικά στη φωτιά — Πασχαλιά","claims":"The regulation names this plant group among its examples of passive fire-resistant plants that are resistant to fire.","plantPart":"whole-plant","sourcePlacement":{"value":"section 5.4.2, paragraph following Table 2δi","scheme":"greece-2023-fire-resistant-examples"},"edition":"FEK B 3475/2023","url":"https://www.elinyae.gr/ethniki-nomothesia/ya-oik-ypendaoka5590420192023-fek-3475b-2452023","documentDate":"2023-05-24T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"}],"flammabilityClass":"fire-resistant","ratingReason":"consensus","recommendation":"on-list","author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-23T00:00:00.000Z","reviewNotes":"Photo auto-selected (top-voted iNat); human review pending."},"localAssessmentInputs":{"stateDistribution":["ID","OR","WA"],"nativeStates":[],"rangeAssertions":[{"relation":"documented-occurrence","geography":{"grain":"state","stateCodes":["ID","OR","WA"]},"provenance":"legacy-field"}],"usdaZoneMin":"3a","usdaZoneMax":"7b","hardinessAssertions":[{"minimum":"3b","maximum":"7a","interpretation":"explicit-range","precision":"half-zone","zoneMapping":"source-stated","applicability":"applicable","source":"osu-em-9103","sourceTaxon":"Syringa spp.","taxonMatch":"exact","sourcePlacement":"Lilac profile (PDF page 134)","sourceVersion":"EM 9103, February 2015","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"},{"minimum":"3","maximum":"7","interpretation":"explicit-range","precision":"whole-zone","zoneMapping":"source-stated","applicability":"applicable","source":"pnw-590","sourceRecordId":"shrubs:Lilac","sourceTaxon":"Syringa spp.","taxonMatch":"exact","sourcePlacement":"Lilac profile, USDA hardiness zones field","sourceVersion":"2023-10","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"}],"hardinessSelection":{"status":"overlapping","assertions":[{"minimum":"3b","maximum":"7a","interpretation":"explicit-range","precision":"half-zone","zoneMapping":"source-stated","applicability":"applicable","source":"osu-em-9103","sourceTaxon":"Syringa spp.","taxonMatch":"exact","sourcePlacement":"Lilac profile (PDF page 134)","sourceVersion":"EM 9103, February 2015","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"},{"minimum":"3","maximum":"7","interpretation":"explicit-range","precision":"whole-zone","zoneMapping":"source-stated","applicability":"applicable","source":"pnw-590","sourceRecordId":"shrubs:Lilac","sourceTaxon":"Syringa spp.","taxonMatch":"exact","sourcePlacement":"Lilac profile, USDA hardiness zones field","sourceVersion":"2023-10","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"}]},"invasiveIn":[],"statusAssertions":[],"fireEvidenceClass":"fire-resistant","recommendation":"on-list","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-em-9103","sourceName":"Fire-resistant Landscape Plants for the Willamette Valley (EM 9103)","sourceUrl":"https://www.canbyfire.org/files/074d2a9e3/Fire-Resistant-Plants_Willamette-Valley.pdf","geography":{"grain":"aggregate-region","stateCodes":["OR"],"regions":["Willamette Valley"]},"completeness":"partial","reviewStatus":"reviewed","scope":"OSU Extension says EM 9103 highlights fire-resistant plants that thrive under Willamette Valley growing conditions. FireApproved publishes 172 exact owners only as valley context. The guide shares the PNW 590 lineage and is not a second independent vote or statewide site clearance.","sourceVersion":"OSU-EM-9103-2015-02","asOf":"2015-02-01T00:00:00.000Z"},{"source":"pnw-590","sourceName":"Fire-Resistant Plants for Home Landscapes (PNW 590)","sourceUrl":"https://extension.oregonstate.edu/catalog/pub/pnw-590-fire-resistant-plants-home-landscapes","geography":{"grain":"state","stateCodes":["ID","OR","WA"]},"completeness":"partial","reviewStatus":"reviewed","scope":"The October 2023 joint Pacific Northwest Extension publication explicitly names Oregon, Washington, and Idaho and publishes more than 150 plant profiles. FireApproved has normalized 155 exact plant records from the source; publication scope does not assert that every listed plant suits every site within the three states.","sourceVersion":"PNW-590-October-2023","asOf":"2023-10-01T00:00:00.000Z"},{"source":"uw-barnyards-firewise-2005","sourceName":"Firewise Landscaping","sourceUrl":"https://www.uwyo.edu/barnbackyard/_files/documents/magazine/2005/spring/firewise-spring-barnyards-2005.pdf","geography":{"grain":"state","stateCodes":["WY"]},"completeness":"partial","reviewStatus":"reviewed","scope":"University of Wyoming Extension published these Firewise examples for its Wyoming rural-living audience and points readers to Firewise Wyoming. FireApproved publishes ten exact source owners while holding broad plant groups. State publication scope is not suitability across every basin.","sourceVersion":"UW-Extension-Barnyards-Backyards-Spring-2005","asOf":"2005-04-01T00:00:00.000Z"},{"source":"yavapai-34","sourceName":"Fire-Resistant and Fire-Prone Plants Common to Yavapai County (Bulletin 34)","sourceUrl":"https://www.extension.arizona.edu/sites/default/files/2025-03/FirewisePlants3-14-2025.pdf","geography":{"grain":"aggregate-region","stateCodes":["AZ"],"regions":["Yavapai County"]},"completeness":"partial","reviewStatus":"reviewed","scope":"University of Arizona Cooperative Extension authors Bulletin 34 for Yavapai County. FireApproved publishes 198 exact source owners from its resistant and prone tables and keeps the county boundary visible. County publication scope is regional Arizona context, never statewide scope.","sourceVersion":"UA-Yavapai-Bulletin-34-v1.2-2025-03-14","asOf":"2025-03-14T00:00:00.000Z"}],"firePerformanceConditions":[{"condition":"green","evidence":[{"source":"fitzgerald-waldo-2002-osu-frn6","verdict":"recommend","url":"https://www.iatp.org/sites/default/files/Fire_Resistant_Plants_for_Oregon_Home_Landscap.pdf","claims":"Syringa species (Lilac) is listed under “Shrubs—deciduous”. The guide says most listed plants require some irrigation during Oregon's dry summer months and must be maintained in a healthy condition.","evidenceIndex":2}]}],"maintenanceAssertions":[],"maintenanceConditions":null,"regulatoryReviews":{},"seedReviews":{}},"legacyCompatibilityProjection":{"nativeStates":[],"invasiveIn":[]},"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."}