{"id":"cyathea-medullaris","license":"CC-BY-4.0","data":{"scientificName":"Cyathea medullaris","commonNames":["Mamaku","Black tree fern"],"taxonRank":"species","acceptedName":"Sphaeropteris medullaris","family":"Cyatheaceae","ids":{"gbifKey":5529626,"itisTsn":914871,"wikidataQid":"Q15600236"},"regions":["New Zealand"],"plantForm":"perennial","photo":{"file":"/images/plants/cyathea-medullaris.jpg","sourceUrl":"https://www.inaturalist.org/photos/113860634","observationUrl":"https://www.inaturalist.org/observations/70079886","license":"cc-by","attribution":"(c) Ian Armitage, some rights reserved (CC BY)","fetchedOn":"2026-08-23T00:00:00.000Z"},"evidence":[{"source":"fenz-low-flammability","verdict":"mixed","verdictRaw":"Moderate/high flammability","claims":"Moderate/high 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":"wyse-2016-nz-60-species","verdict":"mixed","verdictRaw":"Moderate flammability category (Fig. 2)","claims":"Shoot category from the paper's cluster analysis; samples were air-dried for 24 hours before testing.","plantPart":"shoot","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 (%): 62.5","score":{"value":62.5,"scale":"FLAMITS — ignition frequency (%)"},"claims":"FLAMITS record 1374; 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): 388.1","score":{"value":388.1,"scale":"FLAMITS — maximum sample temperature (°C)"},"claims":"FLAMITS record 1568; 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): 19.1","score":{"value":19.1,"scale":"FLAMITS — burning duration (s)"},"claims":"FLAMITS record 1762; 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 (%): 28.8","score":{"value":28.8,"scale":"FLAMITS — estimated burnt biomass (%)"},"claims":"FLAMITS record 1956; 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): 68.81","score":{"value":68.81,"scale":"FLAMITS — temperature at smoke (°C)"},"claims":"FLAMITS record 8362; 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): 154.04","score":{"value":154.04,"scale":"FLAMITS — temperature at smoke (°C)"},"claims":"FLAMITS record 8363; 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): 98.35","score":{"value":98.35,"scale":"FLAMITS — temperature at flaming (°C)"},"claims":"FLAMITS record 8577; 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): 221.3","score":{"value":221.3,"scale":"FLAMITS — temperature at flaming (°C)"},"claims":"FLAMITS record 8578; 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): 23.32","score":{"value":23.32,"scale":"FLAMITS — temperature increase rate (°C/s)"},"claims":"FLAMITS record 8792; 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): 18.86","score":{"value":18.86,"scale":"FLAMITS — temperature increase rate (°C/s)"},"claims":"FLAMITS record 8793; 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 (%): 62.5","score":{"value":62.5,"scale":"FLAMITS — ignition frequency (%)"},"claims":"FLAMITS record 14333; 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): 331.9","score":{"value":331.9,"scale":"FLAMITS — maximum sample temperature (°C)"},"claims":"FLAMITS record 14393; 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): 19.1","score":{"value":19.1,"scale":"FLAMITS — burning duration (s)"},"claims":"FLAMITS record 14453; 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 (%): 28.8","score":{"value":28.8,"scale":"FLAMITS — estimated burnt biomass (%)"},"claims":"FLAMITS record 14513; 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","reviewNotes":"Photo auto-selected (top-voted iNat); human review pending."},"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."}