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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":"fps-eastern-us","verdict":"mixed","verdictRaw":"MODERATELY Firewise (2)","claims":"Long lasting lumber-used for fence posts.","sourcePlacement":{"value":"LZ3","scheme":"fps-landscape-zone"},"edition":"2016-wayback","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"bardon-2005","verdict":"recommend","verdictRaw":"Low flammability rating","edition":"2005","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"osu-b921","verdict":"recommend","verdictRaw":"L flammability","claims":"Tolerates dry soils; new growth lightly armed.","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":"recommend","verdictRaw":"L flammability","claims":"Tolerates dry, saline soils. Suckering problem. Spines on young growth.","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":"fenz-low-flammability","verdict":"avoid","verdictRaw":"Moderate/high flammability","claims":"Moderate/high flammability classification. On FENZ's high-flammability environmental weeds list (2024 DOC list).","plantPart":"shoot","edition":"2026","url":"https://www.checkitsalright.nz/reduce-your-risk/low-flammability-plants","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"ncsu-ag874","verdict":"recommend","verdictRaw":"low flammability","original":"bardon-2005","edition":"2025","url":"https://content.ces.ncsu.edu/fire-resistant-landscaping-in-north-carolina","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"gva-valencia","verdict":"recommend","verdictRaw":"recommended low-flammability species (trees, garden column)","claimOriginal":"especies recomendadas","edition":"2019","url":"https://www.leliana.es/sites/www.leliana.es/files/files/Jardineria%20de%20baja%20inflamabilidad.pdf","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"unr-compilation-good-plant-choices","verdict":"recommend","verdictRaw":"listed by at least two cited sources","claims":"Compilation marks: AZ1289, UI Bulletin 67, MT200101AG, OSU FRN 6.","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":"ua-az1289","verdict":"recommend","verdictRaw":"listed FIREWISE plant material","claims":"Listed among fire-resistant plant materials for Arizona above 3,000 feet.","edition":"2011 revision","url":"https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az1289.pdf","documentDate":"2011-12-01T00:00:00.000Z","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":"dibble-2007-northeastern-invasives","verdict":"mixed","verdictRaw":"Measured; not in an author-named high or low effective-heat-of-combustion group","score":{"value":11.28,"scale":"AEHOC-MJ-kg"},"claims":"Conditioned foliage and twigs were tested at 25 kW/m2 in a cone calorimeter.","plantPart":"shoot","condition":"cured","edition":"2007","url":"https://research.fs.usda.gov/download/treesearch/31137.pdf","documentDate":"2007-08-20T00:00:00.000Z","accessedOn":"2026-08-24T00:00:00.000Z"},{"source":"shan-2003-leaf-fire-ranking","verdict":"recommend","verdictRaw":"Author-named best fire resistance","claims":"The authors place 刺槐 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":"fitzgerald-waldo-2002-osu-frn6","verdict":"recommend","verdictRaw":"Fire-Resistant Plant Materials for Oregon","claims":"Robinia pseudoacacia (Black locust) is listed under “Trees—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":"girona-pirojardineria-2020","verdict":"avoid","verdictRaw":"MUY DESACONSEJADA","claims":"Robinia pseudoacacia is rated “MUY DESACONSEJADA” by the guide's qualitative IUF garden-suitability method. The method assumes species-specific care and integrates fire evidence with fuel structure, maintenance, origin, invasiveness, and expert fire-service experience.","sourcePlacement":{"value":"not suitable inside or outside the 25-metre maximum-risk zone","scheme":"girona-2020-iuf-25m-suitability"},"edition":"2020 Spanish edition","url":"https://interior.gencat.cat/web/.content/home/030_arees_dactuacio/bombers/foc_forestal/publicacions_tecniques_i_normativa/guies_tecniques/prevencio_i_extincio/2020_Guia_de_pirojardineria_es.pdf","documentDate":"2020-01-01T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"},{"source":"tadaki-kira-fire-classification","verdict":"mixed","verdictRaw":"小","score":{"value":1,"scale":"tadaki-kira-fire-protection-power-0-3"},"claims":"Table 10-2 prints ニセアカシア in the small 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":"ニセアカシア — 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":"nc-plant-toolbox","verdict":"recommend","verdictRaw":"low flammability","claims":"NC Toolbox facet capture lists \"Robinia pseudoacacia\" under the low flammability tag.","plantPart":"whole-plant","sourcePlacement":{"value":"robinia-pseudoacacia","scheme":"nc-toolbox-flammability-facet"},"original":"bardon-2005","edition":"live facet capture accessed 2026-08-23","url":"https://plants.ces.ncsu.edu/plants/robinia-pseudoacacia/","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"flamits","verdict":"not-rated","verdictRaw":"calorific value (kcal/kg): 2531.77","score":{"value":2531.77,"scale":"FLAMITS — calorific value (kcal/kg)"},"claims":"FLAMITS record 2886; Combustibility measurement; plant part leaves; fuel live; predrying yes; device calorimeter; site Dibble2007-1; sampling ND. Primary study Dibble2007: Dibble, A. C., White, R. H., & Lebow, P. K. (2007). Combustion characteristics of north-eastern USA vegetation tested in the cone calorimeter: invasive versus non-invasive plants. International journal of wildland fire, 16, 426-443.","plantPart":"leaf","original":"Dibble2007","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): 4428.2","score":{"value":4428.2,"scale":"FLAMITS — calorific value (kcal/kg)"},"claims":"FLAMITS record 3150; Combustibility measurement; plant part wood; fuel dead; predrying yes; device calorimeter; site Domingos2020-1; sampling ND. Primary study Domingos2020: Domingos, I., Ayata, U., Ferreira, J., Cruz-Lopes, L., Sen, A., Sahin, S., & Esteves, B. (2020). Calorific Power Improvement of Wood by Heat Treatment and Its Relation to Chemical Composition. Energies, 13, 5322.","original":"Domingos2020","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): 4681.38","score":{"value":4681.38,"scale":"FLAMITS — calorific value (kcal/kg)"},"claims":"FLAMITS record 3158; Combustibility measurement; plant part wood; fuel dead; predrying yes; device calorimeter; site Domingos2020-1; sampling ND. Primary study Domingos2020: Domingos, I., Ayata, U., Ferreira, J., Cruz-Lopes, L., Sen, A., Sahin, S., & Esteves, B. (2020). Calorific Power Improvement of Wood by Heat Treatment and Its Relation to Chemical Composition. Energies, 13, 5322.","original":"Domingos2020","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): 4874.84","score":{"value":4874.84,"scale":"FLAMITS — calorific value (kcal/kg)"},"claims":"FLAMITS record 3166; Combustibility measurement; plant part wood; fuel dead; predrying yes; device calorimeter; site Domingos2020-1; sampling ND. Primary study Domingos2020: Domingos, I., Ayata, U., Ferreira, J., Cruz-Lopes, L., Sen, A., Sahin, S., & Esteves, B. (2020). Calorific Power Improvement of Wood by Heat Treatment and Its Relation to Chemical Composition. Energies, 13, 5322.","original":"Domingos2020","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":"time to flaming (s): 3.5","score":{"value":3.5,"scale":"FLAMITS — time to flaming (s)"},"claims":"FLAMITS record 5686; Ignitability measurement; plant part leaves; fuel live; predrying no; device burning bench; site Kim1994-1; sampling ND. Primary study Kim1994: Kim, K., Jang, I., & Kim, S. (1994). Moisture content of litter layer and its combustibility by cigarette light in forests. Korean Journal of Ecology (Korea Republic), 17, 1-9.","plantPart":"leaf","original":"Kim1994","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":"time to flaming (s): 6.46","score":{"value":6.46,"scale":"FLAMITS — time to flaming (s)"},"claims":"FLAMITS record 5694; Ignitability measurement; plant part leaves; fuel live; predrying no; device burning bench; site Kim1994-1; sampling ND. Primary study Kim1994: Kim, K., Jang, I., & Kim, S. (1994). Moisture content of litter layer and its combustibility by cigarette light in forests. Korean Journal of Ecology (Korea Republic), 17, 1-9.","plantPart":"leaf","original":"Kim1994","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":"time to flaming (s): 0","score":{"value":0,"scale":"FLAMITS — time to flaming (s)"},"claims":"FLAMITS record 10513; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Petriccione2006-1; sampling may to june. Primary study Petriccione2006: Petriccione, M. (2006). Infiammabilità della lettiera di diverse specie vegetali di ambiente mediterráneo. Tesi Di Dottorato. Università Degli Studi Di Napoli Federico II.","plantPart":"leaf","original":"Petriccione2006","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":"burning duration (s): 0","score":{"value":0,"scale":"FLAMITS — burning duration (s)"},"claims":"FLAMITS record 10514; Sustainability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Petriccione2006-1; sampling may to june. Primary study Petriccione2006: Petriccione, M. (2006). Infiammabilità della lettiera di diverse specie vegetali di ambiente mediterráneo. Tesi Di Dottorato. Università Degli Studi Di Napoli Federico II.","plantPart":"leaf","original":"Petriccione2006","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":"ignition frequency (%): 0","score":{"value":0,"scale":"FLAMITS — ignition frequency (%)"},"claims":"FLAMITS record 10515; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Petriccione2006-1; sampling may to june. Primary study Petriccione2006: Petriccione, M. (2006). Infiammabilità della lettiera di diverse specie vegetali di ambiente mediterráneo. Tesi Di Dottorato. Università Degli Studi Di Napoli Federico II.","plantPart":"leaf","original":"Petriccione2006","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":"flammability value: 0","score":{"value":0,"scale":"FLAMITS — flammability value"},"claims":"FLAMITS record 10516; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Petriccione2006-1; sampling may to june. Primary study Petriccione2006: Petriccione, M. (2006). Infiammabilità della lettiera di diverse specie vegetali di ambiente mediterráneo. Tesi Di Dottorato. Università Degli Studi Di Napoli Federico II.","plantPart":"leaf","original":"Petriccione2006","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":"time to flaming (s): 26.93","score":{"value":26.93,"scale":"FLAMITS — time to flaming (s)"},"claims":"FLAMITS record 10908; Ignitability measurement; plant part bark; fuel live; predrying no; device burning bench; site Rasooli2021-1; sampling november. Primary study Rasooli2021: Rasooli, S. B., Rashidi, S., & Shabanian, N. (2021). Fire sensitivity of broadleaf tree species in plantations of Kurdistan, Iran. Journal of Forestry Research, 32, 1167-1176.","plantPart":"bark","original":"Rasooli2021","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): 23.96","score":{"value":23.96,"scale":"FLAMITS — flaming duration (s)"},"claims":"FLAMITS record 10909; Sustainability measurement; plant part bark; fuel live; predrying no; device burning bench; site Rasooli2021-1; sampling november. Primary study Rasooli2021: Rasooli, S. B., Rashidi, S., & Shabanian, N. (2021). Fire sensitivity of broadleaf tree species in plantations of Kurdistan, Iran. Journal of Forestry Research, 32, 1167-1176.","plantPart":"bark","original":"Rasooli2021","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":"time to flaming (s): 73.47","score":{"value":73.47,"scale":"FLAMITS — time to flaming (s)"},"claims":"FLAMITS record 10920; Ignitability measurement; plant part wood; fuel live; predrying no; device burning bench; site Rasooli2021-1; sampling november. Primary study Rasooli2021: Rasooli, S. B., Rashidi, S., & Shabanian, N. (2021). Fire sensitivity of broadleaf tree species in plantations of Kurdistan, Iran. Journal of Forestry Research, 32, 1167-1176.","original":"Rasooli2021","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): 114.14","score":{"value":114.14,"scale":"FLAMITS — flaming duration (s)"},"claims":"FLAMITS record 10921; Sustainability measurement; plant part wood; fuel live; predrying no; device burning bench; site Rasooli2021-1; sampling november. Primary study Rasooli2021: Rasooli, S. B., Rashidi, S., & Shabanian, N. (2021). Fire sensitivity of broadleaf tree species in plantations of Kurdistan, Iran. Journal of Forestry Research, 32, 1167-1176.","original":"Rasooli2021","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":"time to flaming (s): 13.23","score":{"value":13.23,"scale":"FLAMITS — time to flaming (s)"},"claims":"FLAMITS record 10927; Ignitability measurement; plant part leaves; fuel live; predrying no; device burning bench; site Rasooli2021-1; sampling july. Primary study Rasooli2021: Rasooli, S. B., Rashidi, S., & Shabanian, N. (2021). Fire sensitivity of broadleaf tree species in plantations of Kurdistan, Iran. Journal of Forestry Research, 32, 1167-1176.","plantPart":"leaf","original":"Rasooli2021","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":"temperature at flaming (°C): 280","score":{"value":280,"scale":"FLAMITS — temperature at flaming (°C)"},"claims":"FLAMITS record 12582; 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): 4490.2","score":{"value":4490.2,"scale":"FLAMITS — calorific value (kcal/kg)"},"claims":"FLAMITS record 12583; 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"},{"source":"flamits","verdict":"not-rated","verdictRaw":"calorific value (kcal/kg): 5137.09","score":{"value":5137.09,"scale":"FLAMITS — calorific value (kcal/kg)"},"claims":"FLAMITS record 13718; Combustibility measurement; plant part leaves; fuel live; predrying yes; device calorimeter; site Wang2009-1; sampling november. Primary study Wang2009: Wang, X., Niu, S., & Kan, Z. (2009). Properties and flammability of major tree species in the Beijing area. Frontiers of Forestry in China, 4, 304-308.","plantPart":"leaf","original":"Wang2009","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":"firewise-arkansas-plant-guide","verdict":"recommend","verdictRaw":"Robinia pseudoacacia — Black locust — Tolerates dry, saline soils. Spines on young growth.","claims":"The page presents this row in its table of Firewise trees, shrubs, and groundcovers from which homeowners can choose.","plantPart":"whole-plant","sourcePlacement":{"value":"Scientific name / Common name / Comments table","scheme":"arkansas-firewise-table"},"edition":"2007 one-page guide","url":"https://web.archive.org/web/20070714035825/http://www.firewise.org/usa/files/ArkansasPlantGuide.pdf","documentDate":"2007-05-04T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"}],"flammabilityClass":"fire-resistant","ratingReason":"majority","recommendation":"on-list","author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-23T00:00:00.000Z","reviewNotes":"Demoted from on-list 2026-08-23 (Phase 1 lineage audit): evidence rows do not span two verified lineage trees. Evidence retained; returns to the list when a second verified-independent Tier 1 lineage lands. Photo auto-selected (top-voted iNat); human review pending."},"localAssessmentInputs":{"stateDistribution":["AL","AR","AZ","CA","CO","CT","DC","DE","FL","GA","IA","ID","IL","IN","KS","KY","LA","MA","MD","ME","MI","MN","MO","MS","MT","NC","ND","NE","NH","NJ","NM","NV","NY","OH","OK","OR","PA","RI","SC","SD","TN","TX","UT","VA","VT","WA","WI","WV","WY"],"nativeStates":[],"rangeAssertions":[{"relation":"introduced","geography":{"grain":"state","stateCodes":["AR"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 ARK — Arkansas"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["AZ"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 76 — Southwestern U.S.A.","TDWG level 3 ARI — 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taxonomic scope"},"provenance":"cited"},{"status":"regulated","channel":"regulatory","geography":{"grain":"state","stateCodes":["NY"]},"authority":"New York State Department of Environmental Conservation","source":"new-york-6-nycrr-part-575-2015","sourceRecordId":"new-york:part-575:plant:075","sourceVersion":"6-NYCRR-Part-575-effective-2015-03-10-reviewed-2026-08-26","asOf":"2026-08-26T00:00:00.000Z","sourceTaxon":{"name":"Robinia pseudoacacia","rank":"species","rawRank":"species"},"sourceDesignation":{"code":"6 NYCRR 575.4 regulated","label":"Regulated invasive species — commerce allowed with notice; introduction into a free-living state restricted"},"associatedReferences":["https://dec.ny.gov/nature/invasive-species/resources-regulations/regulations","https://extapps.dec.ny.gov/docs/lands_forests_pdf/islist.pdf","https://dos.ny.gov/system/files/documents/2018/09/september102014rulemaking.pdf"],"regulatoryConditions":[{"kind":"activity-restriction","statement":"This regulated invasive species may not knowingly be introduced into a free-living state, including by a means one knew or should have known would lead to that introduction.","effectiveOn":"2015-03-10T00:00:00.000Z","sourceUrl":"https://dos.ny.gov/system/files/documents/2018/09/september102014rulemaking.pdf"},{"kind":"operational-exception","statement":"Part 575 allows possession, sale, purchase, propagation, and transport of regulated species; the restricted activity is introduction into a free-living state.","sourceUrl":"https://dos.ny.gov/system/files/documents/2018/09/september102014rulemaking.pdf"},{"kind":"sale-disclosure","statement":"A regulated species offered for sale requires the 14-point warning 'Invasive Species-Harmful to the Environment,' non-invasive alternative information, and spread-prevention instructions; qualifying landscape services must give written notice before supply or planting.","effectiveOn":"2015-03-10T00:00:00.000Z","sourceUrl":"https://dos.ny.gov/system/files/documents/2018/09/september102014rulemaking.pdf"},{"kind":"operational-exception","statement":"Possession or transport for identification or disposal, and control or management of pre-existing invasive species, remain exempt when handled within Part 575's no-spread boundary.","sourceUrl":"https://dos.ny.gov/system/files/documents/2018/09/september102014rulemaking.pdf"},{"kind":"permit-required","statement":"A New York State Department of Environmental Conservation permit is required to carry out an otherwise restricted introduction for research, education, or another approved activity.","sourceUrl":"https://dos.ny.gov/system/files/documents/2018/09/september102014rulemaking.pdf"}],"taxonProjection":{"basis":"exact-taxon","legalScope":"named-taxon-only","exceptionReview":"not-applicable","notes":"unique exact same-rank source scientific/accepted name match; no subordinate projection; parenthetical source names are retained only to block unsafe negative receipts, while automatic publication uses the primary exact or accepted species name; current named cultivar exemptions are not projected onto this species page"},"provenance":"cited"},{"status":"noxious-listed","channel":"regulatory","geography":{"grain":"state","stateCodes":["WA"]},"authority":"Washington State Noxious Weed Control Board","source":"washington-wac-16-750-2026","sourceRecordId":"wac-16-750-015:robinia-pseudoacacia","sourceVersion":"WAC-16-750-current-through-2026-list-amendments","asOf":"2026-08-26T00:00:00.000Z","sourceTaxon":{"name":"Robinia pseudoacacia","rank":"species","rawRank":"species"},"sourceDesignation":{"code":"Class C","label":"Class C — county control may be required"},"associatedReferences":["https://app.leg.wa.gov/WAC/default.aspx?cite=16-750-015"],"taxonProjection":{"basis":"exact-taxon","legalScope":"named-taxon-only","notes":"unique exact same-rank federal scientific/accepted name match; no subordinate projection; compound, hybrid, cultivar and exception-bearing WAC rows are retained in review data but never projected"},"provenance":"cited"}],"fireEvidenceClass":"fire-resistant","recommendation":"on-list","fireSourceScopes":[{"source":"dibble-2007-northeastern-invasives","sourceName":"Combustion characteristics of north-eastern USA vegetation tested in the cone calorimeter","sourceUrl":"https://research.fs.usda.gov/treesearch/31137","geography":{"grain":"aggregate-region","stateCodes":["ME","MD","MA","NY","VA"],"regions":["Northeastern and mid-Atlantic study sites"]},"completeness":"partial","reviewStatus":"reviewed","scope":"The authors collected foliage and twigs across study sites in Maine, Maryland, Massachusetts, New York, and Virginia, then conditioned and tested the samples in a cone calorimeter. FireApproved publishes 37 exact source owners only as multi-state laboratory context. The source does not establish that every taxon was sampled in every named state, whole-plant behavior, landscape suitability, or state planting guidance.","sourceVersion":"USDA-Treesearch-31137-2007","asOf":"2007-08-20T00:00:00.000Z"},{"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":"ncsu-ag874","sourceName":"Fire-Resistant Landscaping in North Carolina (AG-874)","sourceUrl":"https://content.ces.ncsu.edu/fire-resistant-landscaping-in-north-carolina","geography":{"grain":"state","stateCodes":["NC"]},"completeness":"complete","reviewStatus":"reviewed","scope":"The complete three-table AG-874 plant list is explicitly for North Carolina and contains 202 low-, medium-, or high-flammability rows. FireApproved accounts for all source rows under its strict taxonomy and lineage rules; source scope does not establish local suitability at a particular North Carolina site.","sourceVersion":"AG-874-reviewed-2025-03-26","asOf":"2025-03-26T00:00:00.000Z"},{"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":"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":"ua-az1289","sourceName":"FIREWISE Plant Materials for 3,000 ft. and Higher Elevations (AZ1289)","sourceUrl":"https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az1289.pdf","geography":{"grain":"aggregate-region","stateCodes":["AZ"],"regions":["Arizona at or above 3,000 feet"]},"completeness":"partial","reviewStatus":"reviewed","scope":"AZ1289 is explicitly limited to Arizona elevations of 3,000 feet and higher. FireApproved publishes 69 exact owners as regional Arizona context, retaining every water and elevation condition. It is never promoted to statewide low-desert guidance or an independent Tier 1 vote.","sourceVersion":"UA-Extension-AZ1289-2011-12","asOf":"2011-12-01T00:00:00.000Z"},{"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":"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"},{"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"}],"firePerformanceConditions":[{"condition":"cured","evidence":[{"source":"dibble-2007-northeastern-invasives","verdict":"mixed","url":"https://research.fs.usda.gov/download/treesearch/31137.pdf","claims":"Conditioned foliage and twigs were tested at 25 kW/m2 in a cone calorimeter.","evidenceIndex":12},{"source":"shan-2003-leaf-fire-ranking","verdict":"recommend","url":"https://html.rhhz.net/linyekexue/html/20030118.htm","claims":"The authors place 刺槐 among the ten taxa with the best fire resistance after factor analysis of six litter-leaf traits.","evidenceIndex":13}]},{"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":"Robinia pseudoacacia (Black locust) is listed under “Trees—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":14}]}],"maintenanceAssertions":[],"maintenanceConditions":null,"regulatoryReviews":{},"seedReviews":{}},"legacyCompatibilityProjection":{"nativeStates":["AL","GA","KY","MD","NC","PA","SC","TN","VA","WV"],"invasiveIn":[{"state":"ME","status":"noxious-listed","source":"maine-chapter-273-invasive-plants-2022-092"},{"state":"MA","status":"noxious-listed","source":"massachusetts-prohibited-plant-list-2026-05"},{"state":"NY","status":"noxious-listed","source":"new-york-6-nycrr-part-575-2015"},{"state":"WA","status":"noxious-listed","source":"washington-wac-16-750-2026"}]},"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."}