{"id":"cerastium-tomentosum","license":"CC-BY-4.0","data":{"scientificName":"Cerastium tomentosum","commonNames":["Snow-in-summer"],"taxonRank":"species","acceptedName":"Cerastium tomentosum","family":"Caryophyllaceae","ids":{"usdaSymbol":"CETO2","gbifKey":3085438,"itisTsn":19966,"wikidataQid":"Q114430","inatTaxonId":160347},"usdaZoneMin":"3a","usdaZoneMax":"7b","zoneSource":"pnw590","states":["AK","ID","MA","ME","MI","NC","NE","NJ","NY","OH","OR","PA","UT","VT","WA","WI","WY"],"rangeAssertions":[{"relation":"introduced","geography":{"grain":"state","stateCodes":["ME"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 MAI — Maine"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["MI"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 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scientific/accepted name"}},{"status":"widespread-invasive","channel":"ecological","geography":{"grain":"aggregate-region","regions":["L48"]},"source":"us-riis-v2","sourceRecordId":"USRIIS-L48-Plantae7059","sourceVersion":"2.0 (November 2022)","asOf":"2022-10-23T00:00:00.000Z","sourceModified":"2022-05-09T00:00:00.000Z","sourceTaxon":{"name":"Cerastium tomentosum","rank":"species","rawRank":"Species"},"sourceDesignation":{"code":"E","label":"widespread invasive (category E)"},"associatedReferences":["USDA Natural Resources Conservation Service (NRCS) PLANTS Database (2021aet), https://plants.usda.gov/home/plantProfile?symbol=CETO2"],"taxonProjection":{"basis":"exact-taxon","notes":"exact source identifier, rank, family, and scientific/accepted name"}}],"hardinessAssertions":[{"minimum":"2","maximum":"10","interpretation":"explicit-range","precision":"whole-zone","zoneMapping":"source-stated","applicability":"applicable","source":"msu-e2948","sourceRecordId":"perennial:Cerastium 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Terry Hunefeld, 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":"wa-dnr-eastern-wa","verdict":"recommend","verdictRaw":"listed fire-resistant","url":"https://www.dnr.wa.gov/publications/rp_fire_resistant_plants_guide_easternwa.pdf","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"anaheim-2018","verdict":"recommend","verdictRaw":"listed fire-resistant","edition":"2018","url":"https://www.anaheim.net/DocumentCenter/View/26964/Fire-Resistive-Plant-Species","documentDate":"2018-02-06T00:00:00.000Z","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"idaho-firewise-master-db","verdict":"recommend","verdictRaw":"fire-resistance score 8 of 10","score":{"value":8,"scale":"idaho-0-10"},"sourcePlacement":{"value":"plantable at 30' from home","scheme":"idaho-distance"},"url":"https://idahofirewise.org/wp-content/uploads/2017/04/FireXResistanceXofXPlantsXMasterXDatabase.pdf","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"firesmart-bc","verdict":"recommend","verdictRaw":"FireSmart-approved fire-resistant plant","sourcePlacement":{"value":"suitable for HIZ intermediate zone (10-30 m)","scheme":"firesmart-hiz"},"original":"pnw-590","url":"https://firesmartbc.ca/landscaping-hub/fire-resistant-plants/","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"firesafe-marin","verdict":"recommend","verdictRaw":"listed as fire-resistant","claims":"Fire Safe Marin lists this taxon among fire-resistant plants common to Marin County.","condition":"irrigated","edition":"2019","url":"https://firesafemarin.org/wp-content/uploads/2021/08/FIRESafe-MARIN_plant-list_2019.pdf","accessedOn":"2026-08-24T00:00:00.000Z"},{"source":"unr-compilation-good-plant-choices","verdict":"recommend","verdictRaw":"listed by at least two cited sources","claims":"Compilation marks: UCFPL 1997, CSU 6.305, UI Bulletin 67, MT200101AG, OSU FRN 6, USU NR/FF/002.","edition":"SP-05-16 (2005)","url":"https://extension.unr.edu/publication.aspx?PubID=4762","documentDate":"2005-01-01T00:00:00.000Z","accessedOn":"2026-08-24T00:00:00.000Z"},{"source":"usu-firewise-plants-utah","verdict":"recommend","verdictRaw":"listed as a firewise plant for Utah landscapes","claims":"Source says the plant can be firewise when properly used and maintained.","edition":"2005 revision","url":"https://extension.usu.edu/smallfarms/files/FirewisePlantsUtLandscapes.pdf","documentDate":"2005-02-01T00:00:00.000Z","accessedOn":"2026-08-24T00:00:00.000Z"},{"source":"msu-montguide-mt200101ag","verdict":"recommend","verdictRaw":"listed fire-resistant","claims":"Listed among fire-resistant plant species adapted to Montana.","edition":"Current as of 4/22","url":"https://extension-store.montana.edu/montguides/fire-resistant-plants-for-montana-landscapes","documentDate":"2022-04-01T00:00:00.000Z","accessedOn":"2026-08-24T00:00:00.000Z"},{"source":"king-county-puget-sound-2011","verdict":"recommend","verdictRaw":"Fire-resistant Landscape Plants","claims":"Listed in the source's Groundcovers — Non-succulents table as Cerastium tomentosa (Snow in summer).","edition":"2011","url":"https://your.kingcounty.gov/dnrp/library/water-and-land/forestry/forestfire/FirewisePlantsPugetSoundBasin-2011.pdf","documentDate":"2011-01-01T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"msu-e2948","verdict":"recommend","verdictRaw":"considered wildfire-resistant and are recommended for Michigan’s climate","claims":"Table 1 row: Cerastium tomentosum (Snow in summer).","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":"la-arboretum-fire-retardant-hillside-1970","verdict":"recommend","verdictRaw":"CATEGORY 3 — Plants with medium-high leaf moisture content capacity (70-80%)","claims":"Cerastium tomentosum (Snow-in-Summer) is one of 30 low-growing plants in the source's recommended Table 1. The category reflects leaf moisture capacity under normal garden conditions at the Arboretum.","plantPart":"whole-plant","condition":"green","sourcePlacement":{"value":"Category 3","scheme":"la-arboretum-1970-leaf-moisture-fire-retardance"},"edition":"LASCA Leaves, September 1970","url":"https://arboretum.org/issue/lasca-leaves-september-1970/","documentDate":"1970-09-01T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"fitzgerald-waldo-2002-osu-frn6","verdict":"recommend","verdictRaw":"Fire-Resistant Plant Materials for Oregon","claims":"Cerastium tomentosum (Snow-in-summer) is listed under “Groundcovers 18 inches and lower”. 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 groundcovers profile lists Cerastium tomentosum as Snow in Summer. The profile prints USDA Hardiness Zone: 3–7.","plantPart":"whole-plant","sourcePlacement":{"value":"Snow in Summer profile (PDF page 23)","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 groundcover plants for your fire-resistant landscape","claims":"The Snow-in-summer profile prints Cerastium tomentosum. The gallery points to PNW 590 for complete details.","plantPart":"whole-plant","sourcePlacement":{"value":"Snow-in-summer — Cerastium tomentosum","scheme":"osu-2023-groundcovers-gallery"},"edition":"November 2023 educational gallery","url":"https://extension.oregonstate.edu/gallery/fire-resistant-plant-profiles-groundcovers","documentDate":"2023-11-01T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"csu-6305","verdict":"recommend","verdictRaw":"ignitability score 8 of 10","score":{"value":8,"scale":"idaho-0-10"},"claims":"CSU 6.305 table lists Cerastium tomentosum (snow-in-summer) with the preserved ignitability score.","plantPart":"whole-plant","sourcePlacement":{"value":"suitable for defensible-space zones 1-2 (score 8+)","scheme":"csu-hiz"},"original":"idaho-firewise-master-db","edition":"2025","url":"https://csfs.colostate.edu/wp-content/uploads/2025/08/CSFS_CSU-Ext_Fact-Sheets_IRLP_2025_081825-2_web_accessible.pdf","documentDate":"2025-07-01T00:00:00.000Z","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"lubin-shelly-1997-ucfpl-compilation","verdict":"recommend","verdictRaw":"RECOMMENDED by 10 references for use in high fire risk areas.","claims":"1997 Landscape Vegetation Database row: Cerastium tomentosum (Snow- in- summer). Preserved UCFPL transcription marker: F10.","plantPart":"whole-plant","sourcePlacement":{"value":"Chapter 4, Landscape Vegetation Database","scheme":"ucfpl-1997"},"edition":"Internal Report 36.01.137 (July 1997)","url":"https://www.firesafemonterey.org/uploads/1/0/6/5/10653434/uc_forestproductslabdefensiblespaceplantlist_ocr.pdf","documentDate":"1997-07-01T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"yavapai-34","verdict":"recommend","verdictRaw":"Fire-Resistant Plants","claims":"Listed as Snow-in-summer — Cerastium tomentosum. 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":"canberra-plant-selector","verdict":"recommend","verdictRaw":"Fire Retardant — Yes — Cerastium tomentosum","claims":"The live Canberra Plant Selector marks “Cerastium tomentosum” as “Fire Retardant: Yes.”","plantPart":"whole-plant","sourcePlacement":{"value":"filtered result page 18","scheme":"canberra-selector"},"edition":"live tool capture 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field","sourceVersion":"2023-10","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"}],"hardinessSelection":{"status":"overlapping","assertions":[{"minimum":"2","maximum":"10","interpretation":"explicit-range","precision":"whole-zone","zoneMapping":"source-stated","applicability":"applicable","source":"msu-e2948","sourceRecordId":"perennial:Cerastium tomentosum","sourceTaxon":"Cerastium tomentosum","taxonMatch":"exact","sourcePlacement":"Table 1, perennial row","sourceVersion":"New, January 2007","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":"osu-em-9103","sourceTaxon":"Cerastium tomentosum","taxonMatch":"exact","sourcePlacement":"Snow in Summer profile (PDF page 23)","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":"groundcovers:Snow-in-summer","sourceTaxon":"Cerastium tomentosum","taxonMatch":"exact","sourcePlacement":"Snow-in-summer profile, USDA hardiness zones field","sourceVersion":"2023-10","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"}]},"invasiveIn":[{"state":"AK","status":"invasive-reported","source":"us-riis"},{"state":"L48","status":"invasive-reported","source":"us-riis"}],"statusAssertions":[{"status":"invasive","channel":"ecological","geography":{"grain":"aggregate-region","regions":["AK"]},"source":"us-riis-v2","sourceRecordId":"USRIIS-AK-Plantae7058","sourceVersion":"2.0 (November 2022)","asOf":"2022-10-23T00:00:00.000Z","sourceModified":"2021-02-19T00:00:00.000Z","sourceTaxon":{"name":"Cerastium tomentosum","rank":"species","rawRank":"Species"},"sourceDesignation":{"code":"D2","label":"invasive (category D2)"},"associatedReferences":["USDA Natural Resources Conservation Service (NRCS) PLANTS Database (2021aet), https://plants.usda.gov/home/plantProfile?symbol=CETO2"],"taxonProjection":{"basis":"exact-taxon","notes":"exact source identifier, rank, family, and scientific/accepted name"},"provenance":"cited"},{"status":"widespread-invasive","channel":"ecological","geography":{"grain":"aggregate-region","regions":["L48"]},"source":"us-riis-v2","sourceRecordId":"USRIIS-L48-Plantae7059","sourceVersion":"2.0 (November 2022)","asOf":"2022-10-23T00:00:00.000Z","sourceModified":"2022-05-09T00:00:00.000Z","sourceTaxon":{"name":"Cerastium tomentosum","rank":"species","rawRank":"Species"},"sourceDesignation":{"code":"E","label":"widespread invasive (category E)"},"associatedReferences":["USDA Natural Resources Conservation Service (NRCS) PLANTS Database (2021aet), https://plants.usda.gov/home/plantProfile?symbol=CETO2"],"taxonProjection":{"basis":"exact-taxon","notes":"exact source identifier, rank, family, and scientific/accepted name"},"provenance":"cited"}],"fireEvidenceClass":"fire-resistant","recommendation":"on-list","fireSourceScopes":[{"source":"csu-6305","sourceName":"Ignition-Resistant Landscape Plants (Fact Sheet 6.305)","sourceUrl":"https://csfs.colostate.edu/wp-content/uploads/2025/08/CSFS_CSU-Ext_Fact-Sheets_IRLP_2025_081825-2_web_accessible.pdf","geography":{"grain":"state","stateCodes":["CO"]},"completeness":"partial","reviewStatus":"reviewed","scope":"Colorado State University Extension and the Colorado State Forest Service publish Fact Sheet 6.305 for Colorado's WUI and varied ecosystems. FireApproved exposes all 114 exact source owners at Colorado publication scope while retaining score, elevation, water, and Idaho-carrier lineage. Publication scope is not suitability for every Colorado site or zone.","sourceVersion":"CSFS-CSU-Fact-Sheet-6.305-2025-07","asOf":"2025-07-01T00:00:00.000Z"},{"source":"firesafe-marin","sourceName":"Fire-Resistant Plants Common to Marin County","sourceUrl":"https://firesafemarin.org/wp-content/uploads/2021/08/FIRESafe-MARIN_plant-list_2019.pdf","geography":{"grain":"aggregate-region","stateCodes":["CA"],"regions":["Marin County"]},"completeness":"partial","reviewStatus":"reviewed","scope":"The publication is explicitly limited to plants common to Marin County. FireApproved publishes 104 exact owners as Marin regional context while retaining its placement, spacing, irrigation, and maintenance boundary. It is not statewide California guidance or parcel suitability.","sourceVersion":"Fire-Safe-Marin-plant-list-2019","asOf":"2019-01-01T00:00:00.000Z"},{"source":"idaho-firewise-master-db","sourceName":"Fire Resistance of Plants Master Database","sourceUrl":"https://idahofirewise.org/wp-content/uploads/2017/04/FireXResistanceXofXPlantsXMasterXDatabase.pdf","geography":{"grain":"aggregate-region","stateCodes":["ID"],"regions":["Southern Idaho"]},"completeness":"partial","reviewStatus":"reviewed","scope":"The official database labels itself \"For Southern Idaho\" and describes Idaho residents at the urban-rangeland interface. FireApproved publishes 419 existing plant owners that cite its scored rows. This bounded Southern Idaho scope is regional context, not statewide coverage or a conclusion that the score transfers unchanged to every Idaho site.","sourceVersion":"Idaho-Firewise-Southern-Idaho-Master-2013-11-08","asOf":"2013-11-08T00:00:00.000Z"},{"source":"king-county-puget-sound-2011","sourceName":"Firewise Plants for the Puget Sound Basin","sourceUrl":"https://your.kingcounty.gov/dnrp/library/water-and-land/forestry/forestfire/FirewisePlantsPugetSoundBasin-2011.pdf","geography":{"grain":"aggregate-region","stateCodes":["WA"],"regions":["Puget Sound Basin"]},"completeness":"partial","reviewStatus":"reviewed","scope":"King County's current wildfire page links this list for the Puget Sound Basin. FireApproved publishes 82 exact source owners as basin context, not statewide Washington guidance or a site-specific recommendation.","sourceVersion":"King-County-Puget-Sound-Basin-2011","asOf":"2011-01-01T00:00:00.000Z"},{"source":"lubin-shelly-1997-ucfpl-compilation","sourceName":"Defensible Space Landscaping in the Urban/Wildland Interface: A Compilation of Fire Performance Ratings of Residential Landscape Plants","sourceUrl":"https://www.firesafemonterey.org/uploads/1/0/6/5/10653434/uc_forestproductslabdefensiblespaceplantlist_ocr.pdf","geography":{"grain":"state","stateCodes":["CA"]},"completeness":"partial","reviewStatus":"reviewed","scope":"The UC Forest Products Laboratory says the guide covers properties of common California landscaping plants and was prepared for California fire agencies. FireApproved publishes 130 exact owners at historical California publication scope. The report is a 1997 compilation, not a current endorsement, site rating, or independent test of every row.","sourceVersion":"UCFPL-Internal-Report-36.01.137-1997-07","asOf":"1997-07-01T00:00:00.000Z"},{"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":"msu-montguide-mt200101ag","sourceName":"Fire-Resistant Plants for Montana Landscapes (MontGuide MT200101AG)","sourceUrl":"https://extension-store.montana.edu/montguides/fire-resistant-plants-for-montana-landscapes","geography":{"grain":"state","stateCodes":["MT"]},"completeness":"partial","reviewStatus":"reviewed","scope":"The April 2022 MontGuide explicitly presents fire-resistant species adapted to Montana. FireApproved publishes 92 exact plant records from the source while retaining excluded genus, family, and unresolved rows; the guide itself says not every listed species grows in every part of the state.","sourceVersion":"MT200101AG-current-2022-04","asOf":"2022-04-01T00:00:00.000Z"},{"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":"unr-compilation-good-plant-choices","sourceName":"A Compilation of Good Plant Choices for Nevada's High Fire Hazard Areas (SP-05-16)","sourceUrl":"https://extension.unr.edu/publication.aspx?PubID=4762","geography":{"grain":"state","stateCodes":["NV"]},"completeness":"partial","reviewStatus":"reviewed","scope":"University of Nevada Cooperative Extension compiled plants suited to Nevada climate zones and reported favorably by at least two upstream firewise lists. FireApproved publishes 126 exact source owners at Nevada publication scope. The source explicitly makes no independent flammability determination, so these rows remain corroborative.","sourceVersion":"UNR-Extension-SP-05-16-2005","asOf":"2005-01-01T00:00:00.000Z"},{"source":"usu-firewise-plants-utah","sourceName":"Firewise Plants for Utah Landscapes (NR/FF/002)","sourceUrl":"https://extension.usu.edu/smallfarms/files/FirewisePlantsUtLandscapes.pdf","geography":{"grain":"state","stateCodes":["UT"]},"completeness":"partial","reviewStatus":"reviewed","scope":"Utah State University Extension states that this fact sheet selects examples for Utah landscapes and that they require proper placement and maintenance. FireApproved publishes 83 exact source owners at Utah publication scope. The table is not a site-specific planting clearance.","sourceVersion":"USU-NR-FF-002-2005-02","asOf":"2005-02-01T00:00:00.000Z"},{"source":"wa-dnr-eastern-wa","sourceName":"Fire-Resistant Plants for Eastern Washington","sourceUrl":"https://dnr.wa.gov/publications/rp_fire_resistant_plants_guide_easternwa.pdf","geography":{"grain":"aggregate-region","stateCodes":["WA"],"regions":["Eastern Washington"]},"completeness":"partial","reviewStatus":"reviewed","scope":"Washington DNR publishes the guide for Eastern Washington and says it compiles plants from other Firewise documents that are likely to thrive there. FireApproved publishes 46 exact owners only as eastern Washington context. The rows are corroborative, not empirical or statewide.","sourceVersion":"WA-DNR-Eastern-Washington-live-2026-08-26"},{"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":"la-arboretum-fire-retardant-hillside-1970","verdict":"recommend","url":"https://arboretum.org/issue/lasca-leaves-september-1970/","claims":"Cerastium tomentosum (Snow-in-Summer) is one of 30 low-growing plants in the source's recommended Table 1. The category reflects leaf moisture capacity under normal garden conditions at the Arboretum.","evidenceIndex":11},{"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":"Cerastium tomentosum (Snow-in-summer) is listed under “Groundcovers 18 inches and lower”. The guide says most listed plants require some irrigation during Oregon's dry summer months and must be maintained in a healthy condition.","evidenceIndex":12}]},{"condition":"irrigated","evidence":[{"source":"firesafe-marin","verdict":"recommend","url":"https://firesafemarin.org/wp-content/uploads/2021/08/FIRESafe-MARIN_plant-list_2019.pdf","claims":"Fire Safe Marin lists this taxon among fire-resistant plants common to Marin County.","evidenceIndex":5}]}],"maintenanceAssertions":[],"maintenanceConditions":null,"regulatoryReviews":{},"seedReviews":{}},"legacyCompatibilityProjection":{"nativeStates":[],"invasiveIn":[{"state":"AK","status":"invasive-reported","source":"us-riis-v2"},{"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."}