{"id":"betula-pubescens","license":"CC-BY-4.0","data":{"scientificName":"Betula pubescens","commonNames":["Betula pubescens"],"taxonRank":"species","acceptedName":"Betula pubescens","family":"Betulaceae","ids":{"gbifKey":9118014},"regions":["Poland","Sweden"],"rangeAssertions":[{"relation":"introduced","geography":{"grain":"state","stateCodes":["CT"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 CNT — Connecticut"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["IN"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 INI — Indiana"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["MA"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 MAS — Massachusetts"]},"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":["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":["OH"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 OHI — Ohio"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["PA"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 PEN — Pennsylvania"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["VT"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 VER — Vermont"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z"}],"invasiveIn":[{"state":"L48","status":"invasive-reported","source":"us-riis"}],"statusAssertions":[{"status":"invasive","channel":"ecological","geography":{"grain":"aggregate-region","regions":["L48"]},"source":"us-riis-v2","sourceRecordId":"USRIIS-L48-Plantae6622","sourceVersion":"2.0 (November 2022)","asOf":"2022-10-23T00:00:00.000Z","sourceModified":"2017-11-21T00:00:00.000Z","sourceTaxon":{"name":"Betula pubescens","rank":"species","rawRank":"Species"},"sourceDesignation":{"code":"D2","label":"invasive (category D2)"},"associatedReferences":["USDA Natural Resources Conservation Service (NRCS) PLANTS Database (2021rc), https://plants.usda.gov/home/plantProfile?symbol=BEPU5"],"taxonProjection":{"basis":"exact-taxon","notes":"exact source identifier, rank, family, and scientific/accepted name"}}],"plantForm":"tree","evidence":[{"source":"flamits","verdict":"not-rated","verdictRaw":"maximum flame temperature (°C): 773.16","score":{"value":773.16,"scale":"FLAMITS — maximum flame temperature (°C)"},"claims":"FLAMITS record 13384; Combustibility measurement; plant part stems; fuel all; predrying yes; device burning bench; site vanAltena2012-1; sampling september. Primary study vanAltena2012: van Altena, C., van Logtestijn, R. S., Cornwell, W. K., & Cornelissen, J. H. (2012). Species composition and fire: non-additive mixture effects on ground fuel flammability. Front Plant Sci, 3, 63.","plantPart":"shoot","original":"vanAltena2012","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): 584.06","score":{"value":584.06,"scale":"FLAMITS — maximum flame temperature (°C)"},"claims":"FLAMITS record 13385; Combustibility measurement; plant part leaves; fuel all; predrying yes; device burning bench; site vanAltena2012-1; sampling september. Primary study vanAltena2012: van Altena, C., van Logtestijn, R. S., Cornwell, W. K., & Cornelissen, J. H. (2012). Species composition and fire: non-additive mixture effects on ground fuel flammability. Front Plant Sci, 3, 63.","plantPart":"leaf","original":"vanAltena2012","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): 423.23","score":{"value":423.23,"scale":"FLAMITS — flaming duration (s)"},"claims":"FLAMITS record 13389; Sustainability measurement; plant part stems; fuel all; predrying yes; device burning bench; site vanAltena2012-1; sampling september. Primary study vanAltena2012: van Altena, C., van Logtestijn, R. S., Cornwell, W. K., & Cornelissen, J. H. (2012). Species composition and fire: non-additive mixture effects on ground fuel flammability. Front Plant Sci, 3, 63.","plantPart":"shoot","original":"vanAltena2012","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): 128.66","score":{"value":128.66,"scale":"FLAMITS — flaming duration (s)"},"claims":"FLAMITS record 13390; Sustainability measurement; plant part leaves; fuel all; predrying yes; device burning bench; site vanAltena2012-1; sampling september. Primary study vanAltena2012: van Altena, C., van Logtestijn, R. S., Cornwell, W. K., & Cornelissen, J. H. (2012). Species composition and fire: non-additive mixture effects on ground fuel flammability. Front Plant Sci, 3, 63.","plantPart":"leaf","original":"vanAltena2012","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): 0.05","score":{"value":0.05,"scale":"FLAMITS — rate of burning spread (cm/s)"},"claims":"FLAMITS record 13394; Sustainability measurement; plant part stems; fuel all; predrying yes; device burning bench; site vanAltena2012-1; sampling september. Primary study vanAltena2012: van Altena, C., van Logtestijn, R. S., Cornwell, W. K., & Cornelissen, J. H. (2012). Species composition and fire: non-additive mixture effects on ground fuel flammability. Front Plant Sci, 3, 63.","plantPart":"shoot","original":"vanAltena2012","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): 0.15","score":{"value":0.15,"scale":"FLAMITS — rate of burning spread (cm/s)"},"claims":"FLAMITS record 13395; Sustainability measurement; plant part leaves; fuel all; predrying yes; device burning bench; site vanAltena2012-1; sampling september. Primary study vanAltena2012: van Altena, C., van Logtestijn, R. S., Cornwell, W. K., & Cornelissen, J. H. (2012). Species composition and fire: non-additive mixture effects on ground fuel flammability. Front Plant Sci, 3, 63.","plantPart":"leaf","original":"vanAltena2012","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): 531.82","score":{"value":531.82,"scale":"FLAMITS — maximum flame temperature (°C)"},"claims":"FLAMITS record 17146; Combustibility measurement; plant part twigs; fuel all; predrying yes; device burning bench; site Blauw2017-1; sampling ND. Primary study Blauw2017: Blauw, L. G., van Logtestijn, R. S. P., Broekman, R., Aerts, R., & Cornelissen, J. H. (2017). (Tree species identity in high-latitude forests determines fire spread through fuel ladders from branches to soil and vice versa. Forest Ecology and Management 400, 475-484.","plantPart":"shoot","original":"Blauw2017","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): 561.85","score":{"value":561.85,"scale":"FLAMITS — maximum flame temperature (°C)"},"claims":"FLAMITS record 17149; Combustibility measurement; plant part twigs; fuel all; predrying yes; device burning bench; site Blauw2017-1; sampling ND. Primary study Blauw2017: Blauw, L. G., van Logtestijn, R. S. P., Broekman, R., Aerts, R., & Cornelissen, J. H. (2017). (Tree species identity in high-latitude forests determines fire spread through fuel ladders from branches to soil and vice versa. Forest Ecology and Management 400, 475-484.","plantPart":"shoot","original":"Blauw2017","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): 526.92","score":{"value":526.92,"scale":"FLAMITS — maximum flame temperature (°C)"},"claims":"FLAMITS record 17152; Combustibility measurement; plant part twigs; fuel all; predrying yes; device burning bench; site Blauw2017-1; sampling ND. Primary study Blauw2017: Blauw, L. G., van Logtestijn, R. S. P., Broekman, R., Aerts, R., & Cornelissen, J. H. (2017). (Tree species identity in high-latitude forests determines fire spread through fuel ladders from branches to soil and vice versa. Forest Ecology and Management 400, 475-484.","plantPart":"shoot","original":"Blauw2017","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): 626","score":{"value":626,"scale":"FLAMITS — maximum flame temperature (°C)"},"claims":"FLAMITS record 17155; Combustibility measurement; plant part twigs; fuel all; predrying yes; device burning bench; site Blauw2017-1; sampling ND. Primary study Blauw2017: Blauw, L. G., van Logtestijn, R. S. P., Broekman, R., Aerts, R., & Cornelissen, J. H. (2017). (Tree species identity in high-latitude forests determines fire spread through fuel ladders from branches to soil and vice versa. Forest Ecology and Management 400, 475-484.","plantPart":"shoot","original":"Blauw2017","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 increase rate (°C/s): 72.5","score":{"value":72.5,"scale":"FLAMITS — temperature increase rate (°C/s)"},"claims":"FLAMITS record 17158; Combustibility measurement; plant part twigs; fuel all; predrying yes; device burning bench; site Blauw2017-1; sampling ND. Primary study Blauw2017: Blauw, L. G., van Logtestijn, R. S. P., Broekman, R., Aerts, R., & Cornelissen, J. H. (2017). (Tree species identity in high-latitude forests determines fire spread through fuel ladders from branches to soil and vice versa. Forest Ecology and Management 400, 475-484.","plantPart":"shoot","original":"Blauw2017","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 increase rate (°C/s): 58.65","score":{"value":58.65,"scale":"FLAMITS — temperature increase rate (°C/s)"},"claims":"FLAMITS record 17161; Combustibility measurement; plant part twigs; fuel all; predrying yes; device burning bench; site Blauw2017-1; sampling ND. Primary study Blauw2017: Blauw, L. G., van Logtestijn, R. S. P., Broekman, R., Aerts, R., & Cornelissen, J. H. (2017). (Tree species identity in high-latitude forests determines fire spread through fuel ladders from branches to soil and vice versa. Forest Ecology and Management 400, 475-484.","plantPart":"shoot","original":"Blauw2017","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 (%): 7","score":{"value":7,"scale":"FLAMITS — burnt biomass (%)"},"claims":"FLAMITS record 18358; consumability measurement; plant part leaves; fuel live; predrying yes; device thermal analyzer; site Wesolowski2003-1; sampling ND. Primary study Wesolowski2003: Weso?owski, M., & Konieczynski, P. (2003). Thermal decomposition and elemental composition of medicinal plant materials—Leaves and flowers Principal component analysis of the results. Thermochimica Acta, 397, 171–180.","plantPart":"leaf","original":"Wesolowski2003","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 (%): 50.5","score":{"value":50.5,"scale":"FLAMITS — burnt biomass (%)"},"claims":"FLAMITS record 18385; consumability measurement; plant part leaves; fuel live; predrying yes; device thermal analyzer; site Wesolowski2003-1; sampling ND. Primary study Wesolowski2003: Weso?owski, M., & Konieczynski, P. (2003). Thermal decomposition and elemental composition of medicinal plant materials—Leaves and flowers Principal component analysis of the results. Thermochimica Acta, 397, 171–180.","plantPart":"leaf","original":"Wesolowski2003","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 (%): 40.5","score":{"value":40.5,"scale":"FLAMITS — burnt biomass (%)"},"claims":"FLAMITS record 18412; consumability measurement; plant part leaves; fuel live; predrying yes; device thermal analyzer; site Wesolowski2003-1; sampling ND. Primary study Wesolowski2003: Weso?owski, M., & Konieczynski, P. (2003). Thermal decomposition and elemental composition of medicinal plant materials—Leaves and flowers Principal component analysis of the results. Thermochimica Acta, 397, 171–180.","plantPart":"leaf","original":"Wesolowski2003","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): 80","score":{"value":80,"scale":"FLAMITS — maximum flame temperature (°C)"},"claims":"FLAMITS record 18439; Combustibility measurement; plant part leaves; fuel live; predrying yes; device thermal analyzer; site Wesolowski2003-1; sampling ND. Primary study Wesolowski2003: Weso?owski, M., & Konieczynski, P. (2003). Thermal decomposition and elemental composition of medicinal plant materials—Leaves and flowers Principal component analysis of the results. Thermochimica Acta, 397, 171–180.","plantPart":"leaf","original":"Wesolowski2003","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): 275","score":{"value":275,"scale":"FLAMITS — maximum flame temperature (°C)"},"claims":"FLAMITS record 18466; Combustibility measurement; plant part leaves; fuel live; predrying yes; device thermal analyzer; site Wesolowski2003-1; sampling ND. Primary study Wesolowski2003: Weso?owski, M., & Konieczynski, P. (2003). Thermal decomposition and elemental composition of medicinal plant materials—Leaves and flowers Principal component analysis of the results. Thermochimica Acta, 397, 171–180.","plantPart":"leaf","original":"Wesolowski2003","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): 455","score":{"value":455,"scale":"FLAMITS — maximum flame temperature (°C)"},"claims":"FLAMITS record 18493; Combustibility measurement; plant part leaves; fuel live; predrying yes; device thermal analyzer; site Wesolowski2003-1; sampling ND. Primary study Wesolowski2003: Weso?owski, M., & Konieczynski, P. (2003). Thermal decomposition and elemental composition of medicinal plant materials—Leaves and flowers Principal component analysis of the results. Thermochimica Acta, 397, 171–180.","plantPart":"leaf","original":"Wesolowski2003","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): 0.7","score":{"value":0.7,"scale":"FLAMITS — flame height (cm)"},"claims":"FLAMITS record 18520; Combustibility measurement; plant part leaves; fuel live; predrying yes; device thermal analyzer; site Wesolowski2003-1; sampling ND. Primary study Wesolowski2003: Weso?owski, M., & Konieczynski, P. (2003). Thermal decomposition and elemental composition of medicinal plant materials—Leaves and flowers Principal component analysis of the results. Thermochimica Acta, 397, 171–180.","plantPart":"leaf","original":"Wesolowski2003","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): 2.5","score":{"value":2.5,"scale":"FLAMITS — flame height (cm)"},"claims":"FLAMITS record 18547; Combustibility measurement; plant part leaves; fuel live; predrying yes; device thermal analyzer; site Wesolowski2003-1; sampling ND. Primary study Wesolowski2003: Weso?owski, M., & Konieczynski, P. (2003). Thermal decomposition and elemental composition of medicinal plant materials—Leaves and flowers Principal component analysis of the results. Thermochimica Acta, 397, 171–180.","plantPart":"leaf","original":"Wesolowski2003","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): 1.2","score":{"value":1.2,"scale":"FLAMITS — flame height (cm)"},"claims":"FLAMITS record 18574; Combustibility measurement; plant part leaves; fuel live; predrying yes; device thermal analyzer; site Wesolowski2003-1; sampling ND. Primary study Wesolowski2003: Weso?owski, M., & Konieczynski, P. (2003). Thermal decomposition and elemental composition of medicinal plant materials—Leaves and flowers Principal component analysis of the results. Thermochimica Acta, 397, 171–180.","plantPart":"leaf","original":"Wesolowski2003","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): 85","score":{"value":85,"scale":"FLAMITS — maximum flame temperature (°C)"},"claims":"FLAMITS record 18601; Combustibility measurement; plant part leaves; fuel live; predrying yes; device thermal analyzer; site Wesolowski2003-1; sampling ND. Primary study Wesolowski2003: Weso?owski, M., & Konieczynski, P. (2003). Thermal decomposition and elemental composition of medicinal plant materials—Leaves and flowers Principal component analysis of the results. Thermochimica Acta, 397, 171–180.","plantPart":"leaf","original":"Wesolowski2003","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): 305","score":{"value":305,"scale":"FLAMITS — maximum flame temperature (°C)"},"claims":"FLAMITS record 18628; Combustibility measurement; plant part leaves; fuel live; predrying yes; device thermal analyzer; site Wesolowski2003-1; sampling ND. Primary study Wesolowski2003: Weso?owski, M., & Konieczynski, P. (2003). Thermal decomposition and elemental composition of medicinal plant materials—Leaves and flowers Principal component analysis of the results. Thermochimica Acta, 397, 171–180.","plantPart":"leaf","original":"Wesolowski2003","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): 460","score":{"value":460,"scale":"FLAMITS — maximum flame temperature (°C)"},"claims":"FLAMITS record 18655; Combustibility measurement; plant part leaves; fuel live; predrying yes; device thermal analyzer; site Wesolowski2003-1; sampling ND. Primary study Wesolowski2003: Weso?owski, M., & Konieczynski, P. (2003). Thermal decomposition and elemental composition of medicinal plant materials—Leaves and flowers Principal component analysis of the results. Thermochimica Acta, 397, 171–180.","plantPart":"leaf","original":"Wesolowski2003","edition":"Dryad version 9","url":"https://doi.org/10.5061/dryad.h18931zr3","documentDate":"2023-12-22T00:00:00.000Z","accessedOn":"2026-08-25T00:00:00.000Z"}],"flammabilityClass":"mixed-evidence","ratingReason":"limited-evidence","recommendation":"candidate","author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-25T00:00:00.000Z","reviewNotes":"FLAMITS measurements are retained as non-voting evidence; the database publishes no cross-variable directional threshold."},"localAssessmentInputs":{"stateDistribution":[],"nativeStates":[],"rangeAssertions":[{"relation":"introduced","geography":{"grain":"state","stateCodes":["CT"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 CNT — Connecticut"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["IN"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 INI — Indiana"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["MA"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 MAS — Massachusetts"]},"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":["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","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["OH"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 OHI — Ohio"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["PA"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 PEN — Pennsylvania"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"},{"relation":"introduced","geography":{"grain":"state","stateCodes":["VT"],"regions":["TDWG level 1 7 — NORTHERN AMERICA","TDWG level 2 75 — Northeastern U.S.A.","TDWG level 3 VER — Vermont"]},"occurrenceStatus":"present","presenceStatus":"extant","source":"wcvp-v16","sourceVersion":"16","asOf":"2026-06-04T00:00:00.000Z","provenance":"cited"}],"usdaZoneMin":null,"usdaZoneMax":null,"hardinessAssertions":[],"hardinessSelection":{"status":"none","assertions":[]},"invasiveIn":[{"state":"L48","status":"invasive-reported","source":"us-riis"}],"statusAssertions":[{"status":"invasive","channel":"ecological","geography":{"grain":"aggregate-region","regions":["L48"]},"source":"us-riis-v2","sourceRecordId":"USRIIS-L48-Plantae6622","sourceVersion":"2.0 (November 2022)","asOf":"2022-10-23T00:00:00.000Z","sourceModified":"2017-11-21T00:00:00.000Z","sourceTaxon":{"name":"Betula pubescens","rank":"species","rawRank":"Species"},"sourceDesignation":{"code":"D2","label":"invasive (category D2)"},"associatedReferences":["USDA Natural Resources Conservation Service (NRCS) PLANTS Database (2021rc), https://plants.usda.gov/home/plantProfile?symbol=BEPU5"],"taxonProjection":{"basis":"exact-taxon","notes":"exact source identifier, rank, family, and scientific/accepted name"},"provenance":"cited"}],"fireEvidenceClass":"mixed-evidence","recommendation":"candidate","fireSourceScopes":[],"firePerformanceConditions":[],"maintenanceAssertions":[],"maintenanceConditions":null,"regulatoryReviews":{},"seedReviews":{}},"legacyCompatibilityProjection":{"nativeStates":[],"invasiveIn":[{"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."}