{"id":"magnolia-grandiflora","license":"CC-BY-4.0","data":{"scientificName":"Magnolia grandiflora","commonNames":["Southern magnolia"],"taxonRank":"species","acceptedName":"Magnolia grandiflora","family":"Magnoliaceae","ids":{"usdaSymbol":"MAGR4","gbifKey":9605163,"itisTsn":18074,"wikidataQid":"Q161116","inatTaxonId":83074},"usdaZoneMin":"6a","zoneSource":"fps-2016","states":["AL","AR","DC","DE","FL","GA","KY","LA","MD","MS","NC","NJ","OH","PA","PR","SC","TN","TX","VA","WV"],"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"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["KY"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 KTY — Kentucky"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"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":["PR"],"regions":["TDWG level 1 8 — SOUTHERN AMERICA","TDWG level 2 81 — Caribbean","TDWG level 3 PUE — Puerto Rico"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["TN"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 TEN — Tennessee"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["VA"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 VRG — Virginia"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"native","geography":{"grain":"state","stateCodes":["AL"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 ALA — Alabama"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"native","geography":{"grain":"state","stateCodes":["FL"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 FLA — Florida"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"native","geography":{"grain":"state","stateCodes":["GA"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 GEO — Georgia"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"native","geography":{"grain":"state","stateCodes":["LA"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 LOU — Louisiana"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"native","geography":{"grain":"state","stateCodes":["MS"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 MSI — Mississippi"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"native","geography":{"grain":"state","stateCodes":["NC"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 NCA — North Carolina"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"native","geography":{"grain":"state","stateCodes":["SC"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 SCA — South Carolina"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"native","geography":{"grain":"state","stateCodes":["TX"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 77 — South-Central U.S.A.","TDWG level 3 TEX — Texas"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"}],"hardinessAssertions":[{"minimum":"6","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":"magnolia-grandiflora","sourceTaxon":"Magnolia grandiflora","taxonMatch":"exact","sourcePlacement":"Cold Hardiness Zone field in the recovered selector record","sourceVersion":"2016-wayback","asOf":"2026-08-26T00:00:00.000Z"},{"minimum":"7b","interpretation":"minimum-threshold","precision":"half-zone","zoneMapping":"derived-containing-band","sourceMeasurement":{"kind":"minimum-temperature","value":7,"unit":"degrees-fahrenheit"},"applicability":"applicable","source":"usda-plants-characteristics","sourceRecordId":"MAGR4","sourceTaxon":"Magnolia grandiflora","taxonMatch":"source-identifier","sourcePlacement":"PlantCharacteristics record 71566, Temperature, Minimum (°F)","sourceVersion":"PLANTS Help Document 2022; characteristics cache retrieved 2026-08-23","asOf":"2026-08-26T00:00:00.000Z"}],"plantForm":"tree","matureHeightFt":75,"sun":"full","waterNeed":"high","photo":{"file":"/images/plants/magnolia-grandiflora.jpg","sourceUrl":"https://www.inaturalist.org/photos/252900808","observationUrl":"https://www.inaturalist.org/observations/147017544","license":"cc-by","attribution":"(c) Joseph McPhail, some rights reserved (CC BY)","fetchedOn":"2026-08-23T00:00:00.000Z"},"evidence":[{"source":"fps-eastern-us","verdict":"avoid","verdictRaw":"NOT Firewise (4)","claims":"Brown pubescence on underside of leaf is found on hardier forms-large white fragrant flowers-produces much debris.","sourcePlacement":{"value":"LZ3","scheme":"fps-landscape-zone"},"edition":"2016-wayback","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"bardon-2005","verdict":"mixed","verdictRaw":"Medium flammability rating","edition":"2005","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"osu-b921","verdict":"avoid","verdictRaw":"H flammability","claims":"Use cold hardy cultivars; broadleaved; considerable litter.","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":"Broadleaved - considerable litter.","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":"tfs-fire-resisting","verdict":"mixed","verdictRaw":"Moderate Flammability","sourcePlacement":{"value":"should be avoided in the Building Protection Zone","scheme":"tfs-bpz"},"edition":"2017","url":"https://www.fire.tas.gov.au/mysite/publications/1709%20Brochure.pdf","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"fenz-low-flammability","verdict":"mixed","verdictRaw":"Moderate flammability","claims":"Moderate flammability classification.","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":"mixed","verdictRaw":"medium 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":"batista-2013-green-barriers-gtr245","verdict":"avoid","verdictRaw":"Highly flammable (FV 4)","score":{"value":4,"scale":"valette-0-5-live-shoot"},"claims":"Mean time to ignition 12.5 s; mean flame length 25.22 cm.","plantPart":"shoot","condition":"green","edition":"2013","url":"https://research.fs.usda.gov/download/treesearch/44525.pdf","documentDate":"2013-01-01T00:00:00.000Z","accessedOn":"2026-08-24T00:00:00.000Z"},{"source":"girona-pirojardineria-2020","verdict":"recommend","verdictRaw":"RECOMENDADA","claims":"Magnolia grandiflora is rated “RECOMENDADA” 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":"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":"avoid","verdictRaw":"防火には不適","score":{"value":0,"scale":"tadaki-kira-fire-protection-power-0-3"},"claims":"Table 10-2 prints タイサンボク in the unsuitable 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":"タイサンボク — 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":"mixed","verdictRaw":"medium flammability","claims":"NC Toolbox facet capture lists \"Magnolia grandiflora\" under the medium flammability tag.","plantPart":"whole-plant","sourcePlacement":{"value":"magnolia-grandiflora","scheme":"nc-toolbox-flammability-facet"},"original":"bardon-2005","edition":"live facet capture accessed 2026-08-23","url":"https://plants.ces.ncsu.edu/plants/magnolia-grandiflora/","accessedOn":"2026-08-23T00:00:00.000Z"},{"source":"flamits","verdict":"not-rated","verdictRaw":"time to flaming (s): 12.5","score":{"value":12.5,"scale":"FLAMITS — time to flaming (s)"},"claims":"FLAMITS record 440; Ignitability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Batista2012-1; sampling ND. Primary study Batista2012: Batista, C., Biondi, D., França, A., de Assunção, R., Tres, A., Costa, R., ... Kovalsyki, B. (2012). Evaluación de la Inflamabilidad de Árboles y Arbustos Utilizados en la Implementación de Barreras Verdes en el Sur del Brasil. Cuarto Simposio Internacional Sobre Políticas, Planificación y Economía de los Incendios Forestales: Cambio Climático e Incendios Forestales, Ciudad de México, México.","plantPart":"shoot","original":"Batista2012","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): 7.44","score":{"value":7.44,"scale":"FLAMITS — burning duration (s)"},"claims":"FLAMITS record 445; Sustainability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Batista2012-1; sampling ND. Primary study Batista2012: Batista, C., Biondi, D., França, A., de Assunção, R., Tres, A., Costa, R., ... Kovalsyki, B. (2012). Evaluación de la Inflamabilidad de Árboles y Arbustos Utilizados en la Implementación de Barreras Verdes en el Sur del Brasil. Cuarto Simposio Internacional Sobre Políticas, Planificación y Economía de los Incendios Forestales: Cambio Climático e Incendios Forestales, Ciudad de México, México.","plantPart":"shoot","original":"Batista2012","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: 4","score":{"value":4,"scale":"FLAMITS — flammability value"},"claims":"FLAMITS record 450; Ignitability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Batista2012-1; sampling ND. Primary study Batista2012: Batista, C., Biondi, D., França, A., de Assunção, R., Tres, A., Costa, R., ... Kovalsyki, B. (2012). Evaluación de la Inflamabilidad de Árboles y Arbustos Utilizados en la Implementación de Barreras Verdes en el Sur del Brasil. Cuarto Simposio Internacional Sobre Políticas, Planificación y Economía de los Incendios Forestales: Cambio Climático e Incendios Forestales, Ciudad de México, México.","plantPart":"shoot","original":"Batista2012","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":"flame height (cm): 25.22","score":{"value":25.22,"scale":"FLAMITS — flame height (cm)"},"claims":"FLAMITS record 455; Combustibility measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Batista2012-1; sampling ND. Primary study Batista2012: Batista, C., Biondi, D., França, A., de Assunção, R., Tres, A., Costa, R., ... Kovalsyki, B. (2012). Evaluación de la Inflamabilidad de Árboles y Arbustos Utilizados en la Implementación de Barreras Verdes en el Sur del Brasil. Cuarto Simposio Internacional Sobre Políticas, Planificación y Economía de los Incendios Forestales: Cambio Climático e Incendios Forestales, Ciudad de México, México.","plantPart":"shoot","original":"Batista2012","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 (%): 100","score":{"value":100,"scale":"FLAMITS — ignition frequency (%)"},"claims":"FLAMITS record 1428; Ignitability measurement; plant part branches; fuel all; predrying yes; device grill; site Cui2020a-1; sampling ND. Primary study Cui2020a: Cui, X., Paterson, A. M., Wyse, S. V., Alam, M. A., Maurin, K. J. L., Pieper, R., ... Curran, T. J. (2020a). Shoot flammability of vascular plants is phylogenetically conserved and related to habitat fire-proneness and growth form. Nature Plants, 6, 355-359.","plantPart":"shoot","original":"Cui2020a","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 sample temperature (°C): 476","score":{"value":476,"scale":"FLAMITS — maximum sample temperature (°C)"},"claims":"FLAMITS record 1622; Combustibility measurement; plant part branches; fuel all; predrying yes; device grill; site Cui2020a-1; sampling ND. Primary study Cui2020a: Cui, X., Paterson, A. M., Wyse, S. V., Alam, M. A., Maurin, K. J. L., Pieper, R., ... Curran, T. J. (2020a). Shoot flammability of vascular plants is phylogenetically conserved and related to habitat fire-proneness and growth form. Nature Plants, 6, 355-359.","plantPart":"shoot","original":"Cui2020a","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): 24.5","score":{"value":24.5,"scale":"FLAMITS — burning duration (s)"},"claims":"FLAMITS record 1816; Sustainability measurement; plant part branches; fuel all; predrying yes; device grill; site Cui2020a-1; sampling ND. Primary study Cui2020a: Cui, X., Paterson, A. M., Wyse, S. V., Alam, M. A., Maurin, K. J. L., Pieper, R., ... Curran, T. J. (2020a). Shoot flammability of vascular plants is phylogenetically conserved and related to habitat fire-proneness and growth form. Nature Plants, 6, 355-359.","plantPart":"shoot","original":"Cui2020a","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":"estimated burnt biomass (%): 12.5","score":{"value":12.5,"scale":"FLAMITS — estimated burnt biomass (%)"},"claims":"FLAMITS record 2010; Consumability measurement; plant part branches; fuel all; predrying yes; device grill; site Cui2020a-1; sampling ND. Primary study Cui2020a: Cui, X., Paterson, A. M., Wyse, S. V., Alam, M. A., Maurin, K. J. L., Pieper, R., ... Curran, T. J. (2020a). Shoot flammability of vascular plants is phylogenetically conserved and related to habitat fire-proneness and growth form. Nature Plants, 6, 355-359.","plantPart":"shoot","original":"Cui2020a","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":"flame height (cm): 5.87","score":{"value":5.87,"scale":"FLAMITS — flame height (cm)"},"claims":"FLAMITS record 9226; Combustibility measurement; plant part litter; fuel all; predrying no; device burning bench; site Mola2014-1; sampling may and june. Primary study Mola2014: Mola, J. M., Varner, J. M., Jules, E. S., & Spector, T. (2014). Altered Community Flammability in Florida's Apalachicola Ravines and Implications for the Persistence of the Endangered Conifer Torreya taxifolia. Plos One, 9, 8.","plantPart":"litter","original":"Mola2014","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): 55.2","score":{"value":55.2,"scale":"FLAMITS — flaming duration (s)"},"claims":"FLAMITS record 9243; Sustainability measurement; plant part litter; fuel all; predrying no; device burning bench; site Mola2014-1; sampling may and june. Primary study Mola2014: Mola, J. M., Varner, J. M., Jules, E. S., & Spector, T. (2014). Altered Community Flammability in Florida's Apalachicola Ravines and Implications for the Persistence of the Endangered Conifer Torreya taxifolia. Plos One, 9, 8.","plantPart":"litter","original":"Mola2014","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":"burnt biomass (%): 99.13","score":{"value":99.13,"scale":"FLAMITS — burnt biomass (%)"},"claims":"FLAMITS record 9260; Consumability measurement; plant part litter; fuel all; predrying no; device burning bench; site Mola2014-1; sampling may and june. Primary study Mola2014: Mola, J. M., Varner, J. M., Jules, E. S., & Spector, T. (2014). Altered Community Flammability in Florida's Apalachicola Ravines and Implications for the Persistence of the Endangered Conifer Torreya taxifolia. Plos One, 9, 8.","plantPart":"litter","original":"Mola2014","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 smouldering (s): 123.2","score":{"value":123.2,"scale":"FLAMITS — time to smouldering (s)"},"claims":"FLAMITS record 9277; Ignitability measurement; plant part litter; fuel all; predrying no; device burning bench; site Mola2014-1; sampling may and june. Primary study Mola2014: Mola, J. M., Varner, J. M., Jules, E. S., & Spector, T. (2014). Altered Community Flammability in Florida's Apalachicola Ravines and Implications for the Persistence of the Endangered Conifer Torreya taxifolia. Plos One, 9, 8.","plantPart":"litter","original":"Mola2014","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): 12.5","score":{"value":12.5,"scale":"FLAMITS — time to flaming (s)"},"claims":"FLAMITS record 11931; Ignitability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND. Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.","plantPart":"shoot","original":"Santos2018a","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":"flame height (cm): 5.41","score":{"value":5.41,"scale":"FLAMITS — flame height (cm)"},"claims":"FLAMITS record 11940; Combustibility measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND. Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.","plantPart":"shoot","original":"Santos2018a","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: 4","score":{"value":4,"scale":"FLAMITS — flammability value"},"claims":"FLAMITS record 11949; Ignitability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND. Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.","plantPart":"shoot","original":"Santos2018a","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): 7.4","score":{"value":7.4,"scale":"FLAMITS — burning duration (s)"},"claims":"FLAMITS record 11958; Sustainability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND. Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.","plantPart":"shoot","original":"Santos2018a","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":"flame height (cm): 40","score":{"value":40,"scale":"FLAMITS — flame height (cm)"},"claims":"FLAMITS record 11967; Combustibility measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND. Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.","plantPart":"shoot","original":"Santos2018a","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":"rate of burning spread (cm/s): 44.5","score":{"value":44.5,"scale":"FLAMITS — rate of burning spread (cm/s)"},"claims":"FLAMITS record 11976; Sustainability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND. Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.","plantPart":"shoot","original":"Santos2018a","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): 4259.3","score":{"value":4259.3,"scale":"FLAMITS — calorific value (kcal/kg)"},"claims":"FLAMITS record 11985; Combustibility measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND. Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.","plantPart":"shoot","original":"Santos2018a","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","score":{"value":6,"scale":"FLAMITS — time to flaming (s)"},"claims":"FLAMITS record 19417; Ignitability measurement; plant part branches; fuel all; predrying yes; device grill; site Murray2023-1; sampling ND. Primary study Murray2023: Murray, B. R., Hawthorne, T., Curran, T. J., Krix, D. W., Wallace, M. I., Young, K., ... & Webb, J. K. (2023). Shoot flammability patterns among plant species of the wildland–urban interface in the fire-prone Greater Blue Mountains World Heritage Area. International Journal of Wildland Fire, Online early.","plantPart":"shoot","original":"Murray2023","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): 1.16","score":{"value":1.16,"scale":"FLAMITS — burning duration (s)"},"claims":"FLAMITS record 19418; Sustainability measurement; plant part branches; fuel all; predrying yes; device grill; site Murray2023-1; sampling ND. Primary study Murray2023: Murray, B. R., Hawthorne, T., Curran, T. J., Krix, D. W., Wallace, M. I., Young, K., ... & Webb, J. K. (2023). Shoot flammability patterns among plant species of the wildland–urban interface in the fire-prone Greater Blue Mountains World Heritage Area. International Journal of Wildland Fire, Online early.","plantPart":"shoot","original":"Murray2023","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): 204.5","score":{"value":204.5,"scale":"FLAMITS — maximum flame temperature (°C)"},"claims":"FLAMITS record 19419; Combustibility measurement; plant part branches; fuel all; predrying yes; device grill; site Murray2023-1; sampling ND. Primary study Murray2023: Murray, B. R., Hawthorne, T., Curran, T. J., Krix, D. W., Wallace, M. I., Young, K., ... & Webb, J. K. (2023). Shoot flammability patterns among plant species of the wildland–urban interface in the fire-prone Greater Blue Mountains World Heritage Area. International Journal of Wildland Fire, Online early.","plantPart":"shoot","original":"Murray2023","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":"estimated burnt biomass (%): 2","score":{"value":2,"scale":"FLAMITS — estimated burnt biomass (%)"},"claims":"FLAMITS record 19420; Consumability measurement; plant part branches; fuel all; predrying yes; device grill; site Murray2023-1; sampling ND. Primary study Murray2023: Murray, B. R., Hawthorne, T., Curran, T. J., Krix, D. W., Wallace, M. I., Young, K., ... & Webb, J. K. (2023). Shoot flammability patterns among plant species of the wildland–urban interface in the fire-prone Greater Blue Mountains World Heritage Area. International Journal of Wildland Fire, Online early.","plantPart":"shoot","original":"Murray2023","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":"canberra-plant-selector","verdict":"recommend","verdictRaw":"Fire Retardant — Yes — Magnolia grandiflora","claims":"The live Canberra Plant Selector marks “Magnolia grandiflora” as “Fire Retardant: Yes.”","plantPart":"whole-plant","sourcePlacement":{"value":"filtered result page 11","scheme":"canberra-selector"},"edition":"live tool capture 2026-08-25","url":"https://plantselector.com.au/browse-plants/?fire_retardant%5B0%5D=1","accessedOn":"2026-08-25T00:00:00.000Z"}],"flammabilityClass":"highly-flammable","ratingReason":"majority","recommendation":"avoid","author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-23T00:00:00.000Z","reviewNotes":"Photo auto-selected (top-voted iNat); human review pending."},"localAssessmentInputs":{"stateDistribution":["AL","AR","DC","DE","FL","GA","KY","LA","MD","MS","NC","NJ","OH","PA","PR","SC","TN","TX","VA","WV"],"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":["KY"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 KTY — Kentucky"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"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":["PR"],"regions":["TDWG level 1 8 — SOUTHERN AMERICA","TDWG level 2 81 — Caribbean","TDWG level 3 PUE — Puerto Rico"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["TN"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 TEN — Tennessee"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["VA"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 VRG — Virginia"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"native","geography":{"grain":"state","stateCodes":["AL"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 ALA — Alabama"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"native","geography":{"grain":"state","stateCodes":["FL"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 FLA — Florida"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"native","geography":{"grain":"state","stateCodes":["GA"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 GEO — Georgia"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"native","geography":{"grain":"state","stateCodes":["LA"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 LOU — Louisiana"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"native","geography":{"grain":"state","stateCodes":["MS"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 MSI — Mississippi"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"native","geography":{"grain":"state","stateCodes":["NC"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 NCA — North Carolina"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"native","geography":{"grain":"state","stateCodes":["SC"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 78 — Southeastern U.S.A.","TDWG level 3 SCA — South Carolina"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"native","geography":{"grain":"state","stateCodes":["TX"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 77 — South-Central U.S.A.","TDWG level 3 TEX — Texas"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"documented-occurrence","geography":{"grain":"state","stateCodes":["AL","AR","DC","DE","FL","GA","KY","LA","MD","MS","NC","NJ","OH","PA","PR","SC","TN","TX","VA","WV"]},"provenance":"legacy-field"}],"usdaZoneMin":"6a","usdaZoneMax":null,"hardinessAssertions":[{"minimum":"6","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":"magnolia-grandiflora","sourceTaxon":"Magnolia grandiflora","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":"7b","interpretation":"minimum-threshold","precision":"half-zone","zoneMapping":"derived-containing-band","sourceMeasurement":{"kind":"minimum-temperature","value":7,"unit":"degrees-fahrenheit"},"applicability":"applicable","source":"usda-plants-characteristics","sourceRecordId":"MAGR4","sourceTaxon":"Magnolia grandiflora","taxonMatch":"source-identifier","sourcePlacement":"PlantCharacteristics record 71566, Temperature, Minimum (°F)","sourceVersion":"PLANTS Help Document 2022; characteristics cache retrieved 2026-08-23","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"}],"hardinessSelection":{"status":"selected","assertion":{"minimum":"7b","interpretation":"minimum-threshold","precision":"half-zone","zoneMapping":"derived-containing-band","sourceMeasurement":{"kind":"minimum-temperature","value":7,"unit":"degrees-fahrenheit"},"applicability":"applicable","source":"usda-plants-characteristics","sourceRecordId":"MAGR4","sourceTaxon":"Magnolia grandiflora","taxonMatch":"source-identifier","sourcePlacement":"PlantCharacteristics record 71566, Temperature, Minimum (°F)","sourceVersion":"PLANTS Help Document 2022; characteristics cache retrieved 2026-08-23","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"},"assertions":[{"minimum":"6","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":"magnolia-grandiflora","sourceTaxon":"Magnolia grandiflora","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":"7b","interpretation":"minimum-threshold","precision":"half-zone","zoneMapping":"derived-containing-band","sourceMeasurement":{"kind":"minimum-temperature","value":7,"unit":"degrees-fahrenheit"},"applicability":"applicable","source":"usda-plants-characteristics","sourceRecordId":"MAGR4","sourceTaxon":"Magnolia grandiflora","taxonMatch":"source-identifier","sourcePlacement":"PlantCharacteristics record 71566, Temperature, Minimum (°F)","sourceVersion":"PLANTS Help Document 2022; characteristics cache retrieved 2026-08-23","asOf":"2026-08-26T00:00:00.000Z","provenance":"cited"}]},"invasiveIn":[],"statusAssertions":[],"fireEvidenceClass":"highly-flammable","recommendation":"avoid","fireSourceScopes":[{"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":"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":[{"condition":"green","evidence":[{"source":"batista-2013-green-barriers-gtr245","verdict":"avoid","url":"https://research.fs.usda.gov/download/treesearch/44525.pdf","claims":"Mean time to ignition 12.5 s; mean flame length 25.22 cm.","evidenceIndex":7}]}],"maintenanceAssertions":[],"maintenanceConditions":null,"regulatoryReviews":{},"seedReviews":{}},"legacyCompatibilityProjection":{"nativeStates":["AL","FL","GA","LA","MS","NC","SC","TX"],"invasiveIn":[],"usdaZoneMin":"7b"},"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."}