Home / Plants / Grow / Flax-leaved daphne

Flax-leaved daphne

Daphne gnidium · Thymelaeaceae · all Daphne records

Your local evidence lens

Separate evidence questions, never one approval badge

Set a ZIP to compare this record with state distribution, native range, USDA hardiness, and invasive records.

A genus split is not a placement verdict. Set a ZIP to read the local documented split.

1. Fire evidence and conditions

Fire evidence: Fire-resistant — location does not change the cited classification.
Fire-performance conditions: 1 condition stated in cited fire-evidence rows.
Fire ecology context: No section-reviewed fire-ecology context is normalized.
Placement evidence: 3 source placement records; source schemes remain separate.
Evidence regions: Catalonia, Spain; Central Spain; Global; Tlemcen, western Algeria
Maintenance: No sourced horticultural maintenance assertion is normalized; fire-test conditions do not supply maintenance advice.

2. Why this plant is relevant here

State distribution: No state distribution is normalized.
Native range: No current cited or legacy state native range is normalized.
Introduced / established: No introduced or established row is normalized; that does not prove native status.
USDA hardiness: No hardiness value is normalized.

3. Legal, ecological, and broader status

Legal-list status: Set a location for an exact legal-list result; source silence is not clearance.
Seed-list status: Set a location to compare the separate state noxious-weed seed layer.
Reported invasive here: No ecological invasive report is normalized; that does not prove noninvasiveness.
Broader regional context: Aggregate AK, HI, and L48 evidence is shown only as regional context, never as an exact-state finding.
Federal context: Federal designations remain separate from state legal-list results.

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.

Form: shrub
Region: Algeria; Spain
Rated in: Catalonia, Spain; Central Spain; Global; Tlemcen, western Algeria
Family: Thymelaeaceae
Evidence: 29 cited sources

Conditions in the fire evidence

These describe tested or rated plant material. They are not horticultural maintenance instructions.

green: A new bench-scale methodology for evaluating the flammability of live forest fuels evidence row, The fire risk of the plant groupings with Cistus in the area of Tlemcen (Western Algeria) evidence row

Where its sources say to plant it

Placement rules below use each source's own distances or named zones, tied to its rating. They are not interchangeable with the directory's current Zone 0 guidance.

Guía de pirojardinería: suitable inside or outside the 25-metre maximum-risk zone [girona-2020-iuf-25m-suitability] (with its recommendation)
The fire risk of the plant groupings with Cistus in the a…: Table 1 [henaoui-2013-fresh-material-flammability] (mid-scale rating)
Les franges perimetrals de protecció contra els incendis …: page 4 species-selection panel [catalonia-perimeter-strip-maintain-remove] (with its recommendation)

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.

Mid-scale / conditional (1)

The fire risk of the plant groupings with Cistus in the area of Tlemcen (Western Algeria) — European Scientific Journal · European Scientific Journal 9(29) · original source Primary evidence Lab-tested lineage: valette-1990

“Moderate flammability — note 2” · score 2 (henaoui-2013-flammability-note-1-3) · condition: green · original source

Table 1 classifies Daphne gnidium at flammability note 2; the paper prints its stratum as Shrub.

Listed without a rating (26)

A new bench-scale methodology for evaluating the flammability of live forest fuels — SAGE / Journal of Fire Sciences (INIA-CIFOR Forest Fire Laboratory) · Journal of Fire Sciences 31(2) · original source Primary evidence Lab-tested lineage: inia-madrid-tree

“Flammability variables for the species studied” · condition: green

Live-fuel comparison at 50 kW/m², 10 g fixed dry mass, 20 kg/m³ bulk density, piloted ignition, and FMC 104%. Table 1 mean (repeatability SD): TTI 33 (4) s; PHRR 105 (18) kW/m²; AEHC 4.41 (0.71) MJ/kg; MLR 0.18 (0.02) g/s; THR 2.46 (0.65) MJ/m². Kruskall–Wallis p values by species: TTI 0.0153; PHRR 0.0216; AEHC 0.0307; MLR 0.0300; THR 0.0156. The paper gives no overall species class or composite rank.
FLAMITS: FLAMmability plant traiTS database — Dryad / Global Ecology and Biogeography · Dryad version 9 · original source Corroboration Trait database lineage: meta-aggregator

25 cited rows from this source; its identity, lineage and tier are stated once.
- “flame height (cm): 21.86” · score 21.86 (FLAMITS — flame height (cm))
  
  FLAMITS record 4881; Combustibility measurement; plant part twigs; fuel live; predrying yes; device infrared burner; site Henaoui2013-1; sampling spring. Primary study Henaoui2013: Henaoui, S. E. -A., Bouazza, M., & Amara, M. (2013). The fire risk of the plant groupings with Cistus in the area of Tlemcen (Western Algeria). European Scientific Journal, 9, 84-103.
- “time to flaming (s): 85.64” · score 85.64 (FLAMITS — time to flaming (s))
  
  FLAMITS record 4919; Ignitability measurement; plant part twigs; fuel live; predrying yes; device infrared burner; site Henaoui2013-1; sampling spring. Primary study Henaoui2013: Henaoui, S. E. -A., Bouazza, M., & Amara, M. (2013). The fire risk of the plant groupings with Cistus in the area of Tlemcen (Western Algeria). European Scientific Journal, 9, 84-103.
- “burning duration (s): 127.93” · score 127.93 (FLAMITS — burning duration (s))
  
  FLAMITS record 4957; Sustainability measurement; plant part twigs; fuel live; predrying yes; device infrared burner; site Henaoui2013-1; sampling spring. Primary study Henaoui2013: Henaoui, S. E. -A., Bouazza, M., & Amara, M. (2013). The fire risk of the plant groupings with Cistus in the area of Tlemcen (Western Algeria). European Scientific Journal, 9, 84-103.
- “flaming duration (s): 82” · score 82 (FLAMITS — flaming duration (s))
  
  FLAMITS record 7325; Sustainability measurement; plant part twigs; fuel live; predrying no; device calorimeter; site Madrigal2011a-1; sampling ND. Primary study Madrigal2011a: Madrigal, J., Guijarro, M., Hernando, C., Díez, C., & Marino, E. (2011a). Effective Heat of Combustion for Flaming Combustion of Mediterranean Forest Fuels. Fire Technology, 47, 461-474.
- “maximum energy flux (kW/m²): 353” · score 353 (FLAMITS — maximum energy flux (kW/m²))
  
  FLAMITS record 7345; Combustibility measurement; plant part twigs; fuel live; predrying no; device calorimeter; site Madrigal2011a-1; sampling ND. Primary study Madrigal2011a: Madrigal, J., Guijarro, M., Hernando, C., Díez, C., & Marino, E. (2011a). Effective Heat of Combustion for Flaming Combustion of Mediterranean Forest Fuels. Fire Technology, 47, 461-474.
- “time to flaming (s): 3” · score 3 (FLAMITS — time to flaming (s))
  
  FLAMITS record 7365; Ignitability measurement; plant part twigs; fuel live; predrying no; device calorimeter; site Madrigal2011a-1; sampling ND. Primary study Madrigal2011a: Madrigal, J., Guijarro, M., Hernando, C., Díez, C., & Marino, E. (2011a). Effective Heat of Combustion for Flaming Combustion of Mediterranean Forest Fuels. Fire Technology, 47, 461-474.
- “mass loss rate (g/s): 0.06” · score 0.06 (FLAMITS — mass loss rate (g/s))
  
  FLAMITS record 7385; Combustibility measurement; plant part twigs; fuel live; predrying no; device calorimeter; site Madrigal2011a-1; sampling ND. Primary study Madrigal2011a: Madrigal, J., Guijarro, M., Hernando, C., Díez, C., & Marino, E. (2011a). Effective Heat of Combustion for Flaming Combustion of Mediterranean Forest Fuels. Fire Technology, 47, 461-474.
- “total heat release (MJ/m²): 25.87” · score 25.87 (FLAMITS — total heat release (MJ/m²))
  
  FLAMITS record 7405; Combustibility measurement; plant part twigs; fuel live; predrying no; device calorimeter; site Madrigal2011a-1; sampling ND. Primary study Madrigal2011a: Madrigal, J., Guijarro, M., Hernando, C., Díez, C., & Marino, E. (2011a). Effective Heat of Combustion for Flaming Combustion of Mediterranean Forest Fuels. Fire Technology, 47, 461-474.
- “time to flaming (s): 33” · score 33 (FLAMITS — time to flaming (s))
  
  FLAMITS record 7500; Ignitability measurement; plant part leaves; fuel live; predrying no; device calorimeter; site Madrigal2013-1; sampling june to september. Primary study Madrigal2013: Madrigal, J., Hernando, C., & Guijarro, M. (2013). A new bench-scale methodology for evaluating the flammability of live forest fuels. Journal of Fire Sciences, 31, 131-142.
- “maximum energy flux (kW/m²): 105” · score 105 (FLAMITS — maximum energy flux (kW/m²))
  
  FLAMITS record 7504; Combustibility measurement; plant part leaves; fuel live; predrying no; device calorimeter; site Madrigal2013-1; sampling june to september. Primary study Madrigal2013: Madrigal, J., Hernando, C., & Guijarro, M. (2013). A new bench-scale methodology for evaluating the flammability of live forest fuels. Journal of Fire Sciences, 31, 131-142.
- “mass loss rate (g/s): 4.41” · score 4.41 (FLAMITS — mass loss rate (g/s))
  
  FLAMITS record 7508; Combustibility measurement; plant part leaves; fuel live; predrying no; device calorimeter; site Madrigal2013-1; sampling june to september. Primary study Madrigal2013: Madrigal, J., Hernando, C., & Guijarro, M. (2013). A new bench-scale methodology for evaluating the flammability of live forest fuels. Journal of Fire Sciences, 31, 131-142.
- “total heat release (MJ/m²): 2.46” · score 2.46 (FLAMITS — total heat release (MJ/m²))
  
  FLAMITS record 7512; Combustibility measurement; plant part leaves; fuel live; predrying no; device calorimeter; site Madrigal2013-1; sampling june to september. Primary study Madrigal2013: Madrigal, J., Hernando, C., & Guijarro, M. (2013). A new bench-scale methodology for evaluating the flammability of live forest fuels. Journal of Fire Sciences, 31, 131-142.
- “calorific value (kcal/kg): 1053.31” · score 1053.31 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 7516; Combustibility measurement; plant part leaves; fuel live; predrying no; device calorimeter; site Madrigal2013-1; sampling june to september. Primary study Madrigal2013: Madrigal, J., Hernando, C., & Guijarro, M. (2013). A new bench-scale methodology for evaluating the flammability of live forest fuels. Journal of Fire Sciences, 31, 131-142.
- “temperature at flaming (°C): 589.33” · score 589.33 (FLAMITS — temperature at flaming (°C))
  
  FLAMITS record 12132; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Saura2010-1; sampling august. Primary study Saura2010: Saura-Mas, S., Paula, S., Pausas, J. G,. & Lloret, F. (2010). Fuel loading and flammability in the Mediterranean Basin woody species with different post-fire regenerative strategies. International Journal of Wildland Fire, 19, 783.
- “temperature at flaming (°C): 578” · score 578 (FLAMITS — temperature at flaming (°C))
  
  FLAMITS record 12149; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Saura2010-2; sampling august. Primary study Saura2010: Saura-Mas, S., Paula, S., Pausas, J. G,. & Lloret, F. (2010). Fuel loading and flammability in the Mediterranean Basin woody species with different post-fire regenerative strategies. International Journal of Wildland Fire, 19, 783.
- “flaming duration (s): 430.8” · score 430.8 (FLAMITS — flaming duration (s))
  
  FLAMITS record 12162; Sustainability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Saura2010-1; sampling august. Primary study Saura2010: Saura-Mas, S., Paula, S., Pausas, J. G,. & Lloret, F. (2010). Fuel loading and flammability in the Mediterranean Basin woody species with different post-fire regenerative strategies. International Journal of Wildland Fire, 19, 783.
- “flaming duration (s): 375” · score 375 (FLAMITS — flaming duration (s))
  
  FLAMITS record 12183; Sustainability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Saura2010-2; sampling august. Primary study Saura2010: Saura-Mas, S., Paula, S., Pausas, J. G,. & Lloret, F. (2010). Fuel loading and flammability in the Mediterranean Basin woody species with different post-fire regenerative strategies. International Journal of Wildland Fire, 19, 783.
- “time to smoke (s): 86.5” · score 86.5 (FLAMITS — time to smoke (s))
  
  FLAMITS record 12196; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Saura2010-1; sampling august. Primary study Saura2010: Saura-Mas, S., Paula, S., Pausas, J. G,. & Lloret, F. (2010). Fuel loading and flammability in the Mediterranean Basin woody species with different post-fire regenerative strategies. International Journal of Wildland Fire, 19, 783.
- “time to smoke (s): 95.6” · score 95.6 (FLAMITS — time to smoke (s))
  
  FLAMITS record 12217; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Saura2010-2; sampling august. Primary study Saura2010: Saura-Mas, S., Paula, S., Pausas, J. G,. & Lloret, F. (2010). Fuel loading and flammability in the Mediterranean Basin woody species with different post-fire regenerative strategies. International Journal of Wildland Fire, 19, 783.
- “temperature at smoke (°C): 146.27” · score 146.27 (FLAMITS — temperature at smoke (°C))
  
  FLAMITS record 12233; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Saura2010-1; sampling august. Primary study Saura2010: Saura-Mas, S., Paula, S., Pausas, J. G,. & Lloret, F. (2010). Fuel loading and flammability in the Mediterranean Basin woody species with different post-fire regenerative strategies. International Journal of Wildland Fire, 19, 783.
- “temperature at smoke (°C): 156” · score 156 (FLAMITS — temperature at smoke (°C))
  
  FLAMITS record 12254; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Saura2010-2; sampling august. Primary study Saura2010: Saura-Mas, S., Paula, S., Pausas, J. G,. & Lloret, F. (2010). Fuel loading and flammability in the Mediterranean Basin woody species with different post-fire regenerative strategies. International Journal of Wildland Fire, 19, 783.
- “time to smouldering (s): 283.4” · score 283.4 (FLAMITS — time to smouldering (s))
  
  FLAMITS record 12269; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Saura2010-1; sampling august. Primary study Saura2010: Saura-Mas, S., Paula, S., Pausas, J. G,. & Lloret, F. (2010). Fuel loading and flammability in the Mediterranean Basin woody species with different post-fire regenerative strategies. International Journal of Wildland Fire, 19, 783.
- “time to smouldering (s): 263.2” · score 263.2 (FLAMITS — time to smouldering (s))
  
  FLAMITS record 12290; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Saura2010-2; sampling august. Primary study Saura2010: Saura-Mas, S., Paula, S., Pausas, J. G,. & Lloret, F. (2010). Fuel loading and flammability in the Mediterranean Basin woody species with different post-fire regenerative strategies. International Journal of Wildland Fire, 19, 783.
- “temperature at smouldering (°C): 429.6” · score 429.6 (FLAMITS — temperature at smouldering (°C))
  
  FLAMITS record 12305; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Saura2010-1; sampling august. Primary study Saura2010: Saura-Mas, S., Paula, S., Pausas, J. G,. & Lloret, F. (2010). Fuel loading and flammability in the Mediterranean Basin woody species with different post-fire regenerative strategies. International Journal of Wildland Fire, 19, 783.
- “temperature at smouldering (°C): 435.2” · score 435.2 (FLAMITS — temperature at smouldering (°C))
  
  FLAMITS record 12326; Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Saura2010-2; sampling august. Primary study Saura2010: Saura-Mas, S., Paula, S., Pausas, J. G,. & Lloret, F. (2010). Fuel loading and flammability in the Mediterranean Basin woody species with different post-fire regenerative strategies. International Journal of Wildland Fire, 19, 783.

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

Profiles: GBIF ·

Daphne gnidium (Flax-leaved daphne). FireApproved. https://fireapproved.com/plants/daphne-gnidium/. Last verified 2026-08-25.