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western brackenfern

Pteridium aquilinum · Dennstaedtiaceae · all Pteridium records · also called Pteridium aquilinum · Wikipedia

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Form
perennial
Region
Spain
Rated in
Global
On this lot

1. Fire evidence and conditions

Fire evidence
Mixed evidence — location does not change the cited classification.
Evidence regions
Global

2. Why this plant is relevant here

3. Legal, ecological, and broader status

How to read this page

The status above is computed from the cited rows below: independent recommendations can support a fire-resistant result, an avoid row can produce keep-away, and disagreement stays visible as conflict. Placement notes preserve each source’s own scheme rather than translating unlike rules into one scale. This is evidence about a plant, not permission to plant it in every part of the defensible space; Zone 0 remains noncombustible.

The evidence

Grouped by what each source concluded. Primary evidence rated the plant itself (a lab, field program, or original curation); corroboration compiled or republished another source's rating and resolves to its root lineage.

Listed without a rating (27)
Corroboration (27 rows from 1 source)

  • FLAMITS: FLAMmability plant traiTS database — Dryad / Global Ecology and Biogeography · Dryad version 9 · original source Corroboration Trait database lineage: meta-aggregator

    27 cited rows from this source; its identity, lineage and tier are stated once.

    • Primary study Anon1995: Añón, J.R., López, F.F., Castiñeiras, J.P., Ledo, J.P. & Regueira, L.N. (1995). Calorific values and flammability for forest wastes during the seasons of the year. Bioresource technology, 52, 269-274.

      Shared row context: plant part litter; fuel all; predrying no; device calorimeter; site Anon1995-1.

      • “calorific value (kcal/kg): 4209.82”

        FLAMITS record 351; Combustibility measurement; sampling spring.

      • “calorific value (kcal/kg): 4533.32”

        FLAMITS record 352; Combustibility measurement; sampling summer.

      • “calorific value (kcal/kg): 4402.49”

        FLAMITS record 353; Combustibility measurement; sampling autumn.

      • “calorific value (kcal/kg): 4451.44”

        FLAMITS record 354; Combustibility measurement; sampling winter.

      • “flammability value: 1”

        FLAMITS record 367; Ignitability measurement; sampling spring.

      • “flammability value: 5”

        FLAMITS record 368; Ignitability measurement; sampling summer.

      • “flammability value: 5”

        FLAMITS record 369; Ignitability measurement; sampling autumn.

      • “flammability value: 3”

        FLAMITS record 370; Ignitability measurement; sampling winter.

    • “calorific value (kcal/kg): 4497.47”

      FLAMITS record 3906; Combustibility measurement; plant part twigs; fuel dead; predrying yes; device calorimeter; site Gillon1997-1; sampling june to september. Primary study Gillon1997: Gillon, D., Hernando, C., Valette, J.-C., & Joffre, R. (1997). Fast estimation of the calorific values of forest fuels by near infrared-reflectance spectroscopy. Canadian Journal of Forest Research, 27, 760-765.

    • Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque

      Shared row context: plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-6.

      • “time to flaming (s): 60”

        FLAMITS record 7757; Ignitability measurement; sampling july.

      • “time to flaming (s): 25”

        FLAMITS record 7758; Ignitability measurement; sampling september.

      • “time to flaming (s): 60”

        FLAMITS record 7759; Ignitability measurement; sampling november.

      • “time to flaming (s): 4”

        FLAMITS record 7760; Ignitability measurement; sampling december.

      • “calorific value (kcal/kg): 4461”

        FLAMITS record 7911; Combustibility measurement; sampling ND.

      • “flammability value: 1”

        FLAMITS record 7960; Ignitability measurement; sampling ND.

    • Primary study Nunez1996: Nunez-Regueira, L., Anon, J. A. R., & Castineiras, J. P. (1996). Calorific values and flammability of forest species in Galicia. Coastal and hillside zones. Bioresource Technology, 57, 283-289.

      Shared row context: plant part litter; fuel all; predrying no; site Nunez1996-1.

      • Shared measurement context: Combustibility measurement; device calorimeter; sampling spring.

        • “calorific value (kcal/kg): 4207”

          FLAMITS record 9790.

        • “calorific value (kcal/kg): 4399.55”

          FLAMITS record 9794.

      • Shared measurement context: Combustibility measurement; device calorimeter; sampling summer.

        • “calorific value (kcal/kg): 830.51”

          FLAMITS record 9791.

        • “calorific value (kcal/kg): 1869.53”

          FLAMITS record 9795.

      • Shared measurement context: Combustibility measurement; device calorimeter; sampling autumn.

        • “calorific value (kcal/kg): 4530.29”

          FLAMITS record 9792.

        • “calorific value (kcal/kg): 448.46”

          FLAMITS record 9796.

      • Shared measurement context: Combustibility measurement; device calorimeter; sampling winter.

        • “calorific value (kcal/kg): 785.82”

          FLAMITS record 9793.

        • “calorific value (kcal/kg): 713.52”

          FLAMITS record 9797.

      • “flammability value: 1”

        FLAMITS record 9848; Ignitability measurement; device epiradiator; sampling spring.

      • “flammability value: 5”

        FLAMITS record 9857; Ignitability measurement; device epiradiator; sampling summer.

      • “flammability value: 5”

        FLAMITS record 9866; Ignitability measurement; device epiradiator; sampling autumn.

      • “flammability value: 3”

        FLAMITS record 9875; Ignitability measurement; device epiradiator; sampling winter.

Fire-resistant perennials instead

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Same genus in the directory · the Pteridium group page

Last verified 2026-08-25. JSON (CC BY 4.0)

Profiles: USDA PLANTS · GBIF · iNaturalist · Wikidata · Wikipedia · ITIS

Pteridium aquilinum (Pteridium aquilinum). FireApproved. https://fireapproved.com/plants/pteridium-aquilinum/. Last verified 2026-08-25.