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Descanso rockrose

Cistus crispus · Cistaceae · all Cistus records

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Separate evidence questions, never one approval badge

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1. Fire evidence and conditions

Fire evidence: Fire-resistant — location does not change the cited classification.
Fire-performance conditions: No test or rating condition is normalized.
Fire ecology context: No section-reviewed fire-ecology context is normalized.
Placement evidence: 1 source placement record; source schemes remain separate.
Evidence regions: California; Global; Southern California
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: Documented in CA.
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
Grows in: CA
Rated in: California; Global; Southern California
Family: Cistaceae
Evidence: 35 cited sources

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.

Low-volume and slow-burning vegetation for planting on cl…: Table 4: Good performance [nord-green-brushland-clearing-performance] (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)

Living More Safely in the Chaparral-Urban Interface — USDA Forest Service, Pacific Southwest Forest and Range Experiment Station (Klaus W. H. Radtke) · General Technical Report PSW-67 · original source Corroboration Compilation lineage: la-arboretum-tree

“Low to medium — Descanso rockrose”

Table 5 rates this low-growing southern California landscape entry by fuel volume, inherent plant flammability, and ease of fire spread.

Listed without a rating (33)

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

33 cited rows from this source; its identity, lineage and tier are stated once.
- “flammability value: 8.37” · score 8.37 (FLAMITS — flammability value)
  
  FLAMITS record 3307; Ignitability measurement; plant part twigs; fuel all; predrying no; device epiradiator; site Essaghi2017-2; sampling january. Primary study Essaghi2017: Essaghi, S., Hachmi, M. H., Yessef, M., Dehhaoui, M., & El Amarty, F. (2017). Assessment of Flammability of Moroccan Forest Fuels: New Approach to Estimate the Flammability Index. Forests, 8, 443.
- “flammability value: 13.93” · score 13.93 (FLAMITS — flammability value)
  
  FLAMITS record 3320; Ignitability measurement; plant part twigs; fuel all; predrying no; device epiradiator; site Essaghi2017-2; sampling january. Primary study Essaghi2017: Essaghi, S., Hachmi, M. H., Yessef, M., Dehhaoui, M., & El Amarty, F. (2017). Assessment of Flammability of Moroccan Forest Fuels: New Approach to Estimate the Flammability Index. Forests, 8, 443.
- “calorific value (kcal/kg): 4678.99” · score 4678.99 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 3936; Combustibility measurement; plant part twigs; fuel live; 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.
- “time to flaming (s): 12.2” · score 12.2 (FLAMITS — time to flaming (s))
  
  FLAMITS record 4701; Ignitability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Hachmi2011-1; sampling ND. Primary study Hachmi2011: Hachmi, M. H., Sesbou, A., Benjelloun, H., El Handouz, N., & Bouanane, F. (2011). A Simple Technique to Estimate the Flammability Index of Moroccan Forest Fuels. Journal of Combustion, 2011, 1-11.
- “flame height (cm): 8” · score 8 (FLAMITS — flame height (cm))
  
  FLAMITS record 4737; Combustibility measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Hachmi2011-1; sampling ND. Primary study Hachmi2011: Hachmi, M. H., Sesbou, A., Benjelloun, H., El Handouz, N., & Bouanane, F. (2011). A Simple Technique to Estimate the Flammability Index of Moroccan Forest Fuels. Journal of Combustion, 2011, 1-11.
- “burning duration (s): 12.5” · score 12.5 (FLAMITS — burning duration (s))
  
  FLAMITS record 4738; Sustainability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Hachmi2011-1; sampling ND. Primary study Hachmi2011: Hachmi, M. H., Sesbou, A., Benjelloun, H., El Handouz, N., & Bouanane, F. (2011). A Simple Technique to Estimate the Flammability Index of Moroccan Forest Fuels. Journal of Combustion, 2011, 1-11.
- “flammability value: 2.27” · score 2.27 (FLAMITS — flammability value)
  
  FLAMITS record 4797; Ignitability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Hachmi2011-1; sampling ND. Primary study Hachmi2011: Hachmi, M. H., Sesbou, A., Benjelloun, H., El Handouz, N., & Bouanane, F. (2011). A Simple Technique to Estimate the Flammability Index of Moroccan Forest Fuels. Journal of Combustion, 2011, 1-11.
- “time to flaming (s): 60” · score 60 (FLAMITS — time to flaming (s))
  
  FLAMITS record 7601; Ignitability measurement; plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-4; sampling may. Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque
- “time to flaming (s): 60” · score 60 (FLAMITS — time to flaming (s))
  
  FLAMITS record 7602; Ignitability measurement; plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-4; sampling july. Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque
- “time to flaming (s): 22” · score 22 (FLAMITS — time to flaming (s))
  
  FLAMITS record 7603; Ignitability measurement; plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-4; sampling august. Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque
- “time to flaming (s): 13” · score 13 (FLAMITS — time to flaming (s))
  
  FLAMITS record 7604; Ignitability measurement; plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-4; sampling september. Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque
- “time to flaming (s): 32” · score 32 (FLAMITS — time to flaming (s))
  
  FLAMITS record 7605; Ignitability measurement; plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-4; sampling october. Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque
- “time to flaming (s): 27” · score 27 (FLAMITS — time to flaming (s))
  
  FLAMITS record 7606; Ignitability measurement; plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-4; sampling november. Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque
- “calorific value (kcal/kg): 4662” · score 4662 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 7885; Combustibility measurement; plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-4; sampling ND. Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque
- “flammability value: 2” · score 2 (FLAMITS — flammability value)
  
  FLAMITS record 7932; Ignitability measurement; plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-4; sampling ND. Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque
- “ignition frequency (%): 12” · score 12 (FLAMITS — ignition frequency (%))
  
  FLAMITS record 8000; Ignitability measurement; plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-4; sampling may. Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque
- “ignition frequency (%): 12” · score 12 (FLAMITS — ignition frequency (%))
  
  FLAMITS record 8001; Ignitability measurement; plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-4; sampling july. Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque
- “ignition frequency (%): 98” · score 98 (FLAMITS — ignition frequency (%))
  
  FLAMITS record 8002; Ignitability measurement; plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-4; sampling august. Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque
- “ignition frequency (%): 100” · score 100 (FLAMITS — ignition frequency (%))
  
  FLAMITS record 8003; Ignitability measurement; plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-4; sampling september. Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque
- “ignition frequency (%): 52” · score 52 (FLAMITS — ignition frequency (%))
  
  FLAMITS record 8004; Ignitability measurement; plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-4; sampling october. Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque
- “ignition frequency (%): 91” · score 91 (FLAMITS — ignition frequency (%))
  
  FLAMITS record 8005; Ignitability measurement; plant part twigs; fuel live; predrying yes; device epiradiator; site Martin1989-4; sampling november. Primary study Martin1989: Martín, E., & Miguel, L. (1989). Inflamabilidad y energía de las especies de sotobosque
- “temperature at flaming (°C): 560.29” · score 560.29 (FLAMITS — temperature at flaming (°C))
  
  FLAMITS record 12128; 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): 580” · score 580 (FLAMITS — temperature at flaming (°C))
  
  FLAMITS record 12146; 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): 320.1” · score 320.1 (FLAMITS — flaming duration (s))
  
  FLAMITS record 12158; 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): 457.25” · score 457.25 (FLAMITS — flaming duration (s))
  
  FLAMITS record 12180; 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): 82.5” · score 82.5 (FLAMITS — time to smoke (s))
  
  FLAMITS record 12192; 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): 69.4” · score 69.4 (FLAMITS — time to smoke (s))
  
  FLAMITS record 12214; 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): 129.33” · score 129.33 (FLAMITS — temperature at smoke (°C))
  
  FLAMITS record 12229; 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): 124.4” · score 124.4 (FLAMITS — temperature at smoke (°C))
  
  FLAMITS record 12251; 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): 300.1” · score 300.1 (FLAMITS — time to smouldering (s))
  
  FLAMITS record 12265; 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): 239” · score 239 (FLAMITS — time to smouldering (s))
  
  FLAMITS record 12287; 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): 402” · score 402 (FLAMITS — temperature at smouldering (°C))
  
  FLAMITS record 12301; 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): 384.6” · score 384.6 (FLAMITS — temperature at smouldering (°C))
  
  FLAMITS record 12323; 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 ·

Cistus crispus (Descanso rockrose). FireApproved. https://fireapproved.com/plants/cistus-crispus/. Last verified 2026-08-25.