{"id":"cyathea-dealbata","license":"CC-BY-4.0","data":{"scientificName":"Cyathea dealbata","commonNames":["Silver fern","Ponga"],"taxonRank":"species","acceptedName":"Alsophila dealbata","family":"Cyatheaceae","ids":{"gbifKey":5529608,"wikidataQid":"Q17184931"},"regions":["New Zealand"],"plantForm":"perennial","evidence":[{"source":"wyse-2016-nz-60-species","verdict":"mixed","verdictRaw":"Moderate/high flammability category (Fig. 2)","claims":"Shoot category from the paper's cluster analysis; samples were air-dried for 24 hours before testing.","plantPart":"shoot","via":"fenz-low-flammability","edition":"2016","url":"https://researcharchive.lincoln.ac.nz/bitstreams/f71e918c-7752-443a-a5ed-8307c07ae635/download","documentDate":"2016-02-25T00:00:00.000Z","accessedOn":"2026-08-24T00:00:00.000Z"},{"source":"flamits","verdict":"not-rated","verdictRaw":"ignition frequency (%): 87.5","score":{"value":87.5,"scale":"FLAMITS — ignition frequency (%)"},"claims":"FLAMITS record 1373; 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): 442.3","score":{"value":442.3,"scale":"FLAMITS — maximum sample temperature (°C)"},"claims":"FLAMITS record 1567; 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): 10","score":{"value":10,"scale":"FLAMITS — burning duration (s)"},"claims":"FLAMITS record 1761; 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 (%): 28.1","score":{"value":28.1,"scale":"FLAMITS — estimated burnt biomass (%)"},"claims":"FLAMITS record 1955; 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":"temperature at smoke (°C): 68.1","score":{"value":68.1,"scale":"FLAMITS — temperature at smoke (°C)"},"claims":"FLAMITS record 8358; Ignitability measurement; plant part leaves; fuel live; predrying yes; device muffle furnace; site Mason2016-3; sampling summer. Primary study Mason2016: Mason, N. W. H., Frazao, C., Buxton, R. P., & Richardson, S. J. (2016). Fire form and function: evidence for exaptive flammability in the New Zealand flora. Plant Ecology, 217, 645-659.","plantPart":"leaf","original":"Mason2016","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 smoke (°C): 172.28","score":{"value":172.28,"scale":"FLAMITS — temperature at smoke (°C)"},"claims":"FLAMITS record 8359; Ignitability measurement; plant part leaves; fuel live; predrying yes; device muffle furnace; site Mason2016-3; sampling summer. Primary study Mason2016: Mason, N. W. H., Frazao, C., Buxton, R. P., & Richardson, S. J. (2016). Fire form and function: evidence for exaptive flammability in the New Zealand flora. Plant Ecology, 217, 645-659.","plantPart":"leaf","original":"Mason2016","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): 117.2","score":{"value":117.2,"scale":"FLAMITS — temperature at flaming (°C)"},"claims":"FLAMITS record 8573; Ignitability measurement; plant part leaves; fuel live; predrying yes; device muffle furnace; site Mason2016-3; sampling summer. Primary study Mason2016: Mason, N. W. H., Frazao, C., Buxton, R. P., & Richardson, S. J. (2016). Fire form and function: evidence for exaptive flammability in the New Zealand flora. Plant Ecology, 217, 645-659.","plantPart":"leaf","original":"Mason2016","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): 219.8","score":{"value":219.8,"scale":"FLAMITS — temperature at flaming (°C)"},"claims":"FLAMITS record 8574; Ignitability measurement; plant part leaves; fuel live; predrying yes; device muffle furnace; site Mason2016-3; sampling summer. Primary study Mason2016: Mason, N. W. H., Frazao, C., Buxton, R. P., & Richardson, S. J. (2016). Fire form and function: evidence for exaptive flammability in the New Zealand flora. Plant Ecology, 217, 645-659.","plantPart":"leaf","original":"Mason2016","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): 26.99","score":{"value":26.99,"scale":"FLAMITS — temperature increase rate (°C/s)"},"claims":"FLAMITS record 8788; Combustibility measurement; plant part leaves; fuel live; predrying yes; device muffle furnace; site Mason2016-3; sampling summer. Primary study Mason2016: Mason, N. W. H., Frazao, C., Buxton, R. P., & Richardson, S. J. (2016). Fire form and function: evidence for exaptive flammability in the New Zealand flora. Plant Ecology, 217, 645-659.","plantPart":"leaf","original":"Mason2016","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): 24.09","score":{"value":24.09,"scale":"FLAMITS — temperature increase rate (°C/s)"},"claims":"FLAMITS record 8789; Combustibility measurement; plant part leaves; fuel live; predrying yes; device muffle furnace; site Mason2016-3; sampling summer. Primary study Mason2016: Mason, N. W. H., Frazao, C., Buxton, R. P., & Richardson, S. J. (2016). Fire form and function: evidence for exaptive flammability in the New Zealand flora. Plant Ecology, 217, 645-659.","plantPart":"leaf","original":"Mason2016","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 (%): 87.5","score":{"value":87.5,"scale":"FLAMITS — ignition frequency (%)"},"claims":"FLAMITS record 14332; Ignitability measurement; plant part branches; fuel all; predrying yes; device grill; site Wyse2016-1; sampling ND. Primary study Wyse2016: Wyse, S. V., Perry, G. L. W., O'Connell, D. M., Holland, P. S., Wright, M. J., Hosted, C. L., ... Curran, T. J. (2016). A quantitative assessment of shoot flammability for 60 tree and shrub species supports rankings based on expert opinion. International Journal of Wildland Fire, 25, 466-477.","plantPart":"shoot","original":"Wyse2016","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): 423.5","score":{"value":423.5,"scale":"FLAMITS — maximum sample temperature (°C)"},"claims":"FLAMITS record 14392; Combustibility measurement; plant part branches; fuel all; predrying yes; device grill; site Wyse2016-1; sampling ND. Primary study Wyse2016: Wyse, S. V., Perry, G. L. W., O'Connell, D. M., Holland, P. S., Wright, M. J., Hosted, C. L., ... Curran, T. J. (2016). A quantitative assessment of shoot flammability for 60 tree and shrub species supports rankings based on expert opinion. International Journal of Wildland Fire, 25, 466-477.","plantPart":"shoot","original":"Wyse2016","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): 10","score":{"value":10,"scale":"FLAMITS — burning duration (s)"},"claims":"FLAMITS record 14452; Sustainability measurement; plant part branches; fuel all; predrying yes; device grill; site Wyse2016-1; sampling ND. Primary study Wyse2016: Wyse, S. V., Perry, G. L. W., O'Connell, D. M., Holland, P. S., Wright, M. J., Hosted, C. L., ... Curran, T. J. (2016). A quantitative assessment of shoot flammability for 60 tree and shrub species supports rankings based on expert opinion. International Journal of Wildland Fire, 25, 466-477.","plantPart":"shoot","original":"Wyse2016","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 (%): 28.1","score":{"value":28.1,"scale":"FLAMITS — estimated burnt biomass (%)"},"claims":"FLAMITS record 14512; Consumability measurement; plant part branches; fuel all; predrying yes; device grill; site Wyse2016-1; sampling ND. Primary study Wyse2016: Wyse, S. V., Perry, G. L. W., O'Connell, D. M., Holland, P. S., Wright, M. J., Hosted, C. L., ... Curran, T. J. (2016). A quantitative assessment of shoot flammability for 60 tree and shrub species supports rankings based on expert opinion. International Journal of Wildland Fire, 25, 466-477.","plantPart":"shoot","original":"Wyse2016","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":"mid-scale","recommendation":"candidate","author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-23T00:00:00.000Z"},"localAssessmentInputs":{"stateDistribution":[],"nativeStates":[],"rangeAssertions":[],"usdaZoneMin":null,"usdaZoneMax":null,"hardinessAssertions":[],"hardinessSelection":{"status":"none","assertions":[]},"invasiveIn":[],"statusAssertions":[],"fireEvidenceClass":"mixed-evidence","recommendation":"candidate","fireSourceScopes":[],"firePerformanceConditions":[],"maintenanceAssertions":[],"maintenanceConditions":null,"regulatoryReviews":{},"seedReviews":{}},"legacyCompatibilityProjection":{"nativeStates":[],"invasiveIn":[]},"localAssessmentContract":"Compare each dimension separately. State noxious-weed seed designations are material-scoped and never become non-seed plant restrictions, ecological-invasive findings, nursery restrictions, alternatives, product evidence, or fire votes. Introduced/established context is not an invasive warning. Minimum-only hardiness has no inferred maximum; canonical source-temperature conversion is validated and contradictory applicable rows project no primary zone. L48 context applies only to conterminous states and is never exact-state status. Fire-performance conditions are not maintenance advice. FEIS fire-ecology context does not vote in the plant classification. Absence of a status row is not regulatory clearance."}