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curly rockrose

Cistus crispus · Cistaceae · all Cistus records · also called Descanso rockrose · Wikipedia

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Cistus crispus leads with Low-volume and slow-burning vegetation, the shortened title of its selected lab source. Its limited evidence label remains on the evidence table, so one named lineage is not made to look like a broad evidence collection.

The source tally still produces an on-list result in the cited rows. A reader can move to related plants for comparison or to the existing genus page for other records. Those routes leave this species' source depth, laboratory lineage, and computed direction unchanged. This boundary belongs to the specific source-backed Cistus species record shown here.

Form
shrub
Rated in
California; Global; Southern California
On this lot

1. Fire evidence and conditions

Fire evidence
Fire-resistant — location does not change the cited classification.
Placement evidence
1 source placement record; source schemes remain separate.
Evidence regions
California; Global; Southern California

2. Why this plant is relevant here

State distribution
Documented in CA.

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.

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.

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.

Recommends (1)

Mid-scale / conditional (1)

Corroboration (1 rows from 1 source)
  • 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)
Corroboration (33 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

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

    • 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.

      Shared row context: Ignitability measurement; plant part twigs; fuel all; predrying no; device epiradiator; site Essaghi2017-2; sampling january.

      • “flammability value: 8.37”

        FLAMITS record 3307.

      • “flammability value: 13.93”

        FLAMITS record 3320.

    • “calorific value (kcal/kg): 4678.99”

      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.

    • 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.

      Shared row context: plant part twigs; fuel live; predrying no; device epiradiator; site Hachmi2011-1; sampling ND.

      • Shared measurement context: Ignitability measurement.

        • “time to flaming (s): 12.2”

          FLAMITS record 4701.

        • “flammability value: 2.27”

          FLAMITS record 4797.

      • “flame height (cm): 8”

        FLAMITS record 4737; Combustibility measurement.

      • “burning duration (s): 12.5”

        FLAMITS record 4738; Sustainability measurement.

    • 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 Martin1989-4.

      • Shared measurement context: Ignitability measurement; sampling may.

        • “time to flaming (s): 60”

          FLAMITS record 7601.

        • “ignition frequency (%): 12”

          FLAMITS record 8000.

      • Shared measurement context: Ignitability measurement; sampling july.

        • “time to flaming (s): 60”

          FLAMITS record 7602.

        • “ignition frequency (%): 12”

          FLAMITS record 8001.

      • Shared measurement context: Ignitability measurement; sampling august.

        • “time to flaming (s): 22”

          FLAMITS record 7603.

        • “ignition frequency (%): 98”

          FLAMITS record 8002.

      • Shared measurement context: Ignitability measurement; sampling september.

        • “time to flaming (s): 13”

          FLAMITS record 7604.

        • “ignition frequency (%): 100”

          FLAMITS record 8003.

      • Shared measurement context: Ignitability measurement; sampling october.

        • “time to flaming (s): 32”

          FLAMITS record 7605.

        • “ignition frequency (%): 52”

          FLAMITS record 8004.

      • Shared measurement context: Ignitability measurement; sampling november.

        • “time to flaming (s): 27”

          FLAMITS record 7606.

        • “ignition frequency (%): 91”

          FLAMITS record 8005.

      • “calorific value (kcal/kg): 4662”

        FLAMITS record 7885; Combustibility measurement; sampling ND.

      • “flammability value: 2”

        FLAMITS record 7932; Ignitability measurement; sampling ND.

    • 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.

      Shared row context: plant part leaves; fuel live; predrying no; device epiradiator; sampling august.

      • Shared measurement context: Ignitability measurement; site Saura2010-1.

        • “temperature at flaming (°C): 560.29”

          FLAMITS record 12128.

        • “time to smoke (s): 82.5”

          FLAMITS record 12192.

        • “temperature at smoke (°C): 129.33”

          FLAMITS record 12229.

        • “time to smouldering (s): 300.1”

          FLAMITS record 12265.

        • “temperature at smouldering (°C): 402”

          FLAMITS record 12301.

      • Shared measurement context: Ignitability measurement; site Saura2010-2.

        • “temperature at flaming (°C): 580”

          FLAMITS record 12146.

        • “time to smoke (s): 69.4”

          FLAMITS record 12214.

        • “temperature at smoke (°C): 124.4”

          FLAMITS record 12251.

        • “time to smouldering (s): 239”

          FLAMITS record 12287.

        • “temperature at smouldering (°C): 384.6”

          FLAMITS record 12323.

      • “flaming duration (s): 320.1”

        FLAMITS record 12158; Sustainability measurement; site Saura2010-1.

      • “flaming duration (s): 457.25”

        FLAMITS record 12180; Sustainability measurement; site Saura2010-2.

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

Profiles: GBIF · iNaturalist · Wikidata · Wikipedia ·

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