United States / Grow / crackopen

crackopen (Casearia sylvestris)
Photo: (c) aacocucci, some rights reserved (CC BY), uploaded by aacocucci (CC BY), via iNaturalist. Species-typical, not necessarily this cultivar.

crackopen

Casearia sylvestris · Salicaceae · also called Wild sage · Wikipedia

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Casearia sylvestris has an avoid result in the evidence table. The southern-brazil barrier study supplies the selected lab lineage, with its green setting retained under test conditions. The page carries limited evidence behind that recommendation.

Each part keeps its own job: test setting, paper identity, support depth, and computed result. If the avoid position changes the planting plan, related plants offers cited same-form alternatives with independent evidence. This leaves the green condition attached to its study rather than treating it as a general species claim during careful later source review.

Fire-resistant trees instead

Form
tree
Rated in
Curitiba, Paraná, Brazil; Global
On this lot

1. Fire evidence and conditions

Fire evidence
Highly flammable — location does not change the cited classification.
Fire-performance conditions
1 condition stated in cited fire-evidence rows.
Evidence regions
Curitiba, Paraná, Brazil; Global

2. Why this plant is relevant here

State distribution
Documented in PR, VI.
Native range
Current cited native range in PR.

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.

Native and introduced range evidence

These are exact U.S. botanical-area records from the cited range source. Native and introduced describe biogeographic relationship, not fire performance or planting approval. Doubtful and extinct rows stay visible but do not count as current presence.

Current native

1

exact source area

Current introduced

0

exact source areas

Qualified

0

doubtful or extinct source rows

1 native source area · World Checklist of Vascular Plants, version 16 v16, as of 2026-06-04
  • Puerto Rico (PR)

The lossless worldwide derivative is retained once in the research corpus; object pages repeat only exact U.S. areas needed by the local lens. The JSON twin carries the same page assertions.

Conditions in the fire evidence

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

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.

Avoids (1)

Listed without a rating (11)
Corroboration (11 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

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

    • Primary study Batista2012: Batista, C., Biondi, D., França, A., de Assunção, R., Tres, A., Costa, R., ... Kovalsyki, B. (2012). Evaluación de la Inflamabilidad de Árboles y Arbustos Utilizados en la Implementación de Barreras Verdes en el Sur del Brasil. Cuarto Simposio Internacional Sobre Políticas, Planificación y Economía de los Incendios Forestales: Cambio Climático e Incendios Forestales, Ciudad de México, México.

      Shared row context: plant part twigs; fuel live; predrying no; device epiradiator; site Batista2012-1; sampling ND.

      • Shared measurement context: Ignitability measurement.

        • “time to flaming (s): 15.7”

          FLAMITS record 441.

        • “flammability value: 4”

          FLAMITS record 451.

      • “burning duration (s): 5.32”

        FLAMITS record 446; Sustainability measurement.

      • “flame height (cm): 13.46”

        FLAMITS record 456; Combustibility measurement.

    • Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.

      Shared row context: plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND.

      • Shared measurement context: Ignitability measurement.

        • “time to flaming (s): 17.5”

          FLAMITS record 11929.

        • “flammability value: 3”

          FLAMITS record 11947.

      • Shared measurement context: Combustibility measurement.

        • “flame height (cm): 4.89”

          FLAMITS record 11938.

        • “flame height (cm): 23.3”

          FLAMITS record 11965.

        • “calorific value (kcal/kg): 4449.4”

          FLAMITS record 11983.

      • Shared measurement context: Sustainability measurement.

        • “burning duration (s): 5.5”

          FLAMITS record 11956.

        • “rate of burning spread (cm/s): 32.4”

          FLAMITS record 11974.

Fire-resistant trees instead

Fire-resistant trees listed above

Last verified 2026-08-24. JSON (CC BY 4.0)

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

Casearia sylvestris (Wild sage). FireApproved. https://fireapproved.com/plants/casearia-sylvestris/. Last verified 2026-08-24.