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castorbean

Ricinus communis · Euphorbiaceae · also called Ricinus communis · Wikipedia

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Ricinus communis remains limited evidence in the evidence table. Its source pack contains measured fire-behavior values, but no row supplies a directional recommend-or-avoid verdict, leaving the record at candidate.

The measurements cover live leaves and include 21 seconds to flaming, 125 kilowatts per square metre of maximum energy flux, 150 seconds of flaming, and 79 percent burnt biomass. These values remain individual observations in the source rows, not a site-authored rating.

A single regulatory seed entry is available under seed-list status. Two ecological invasive reports are also retained on the page; they describe plant status and stay separate from the fire-evidence tally.

Form
shrub
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

State distribution
Documented in AL, AZ, CA, CT, DC, DE, FL, GA, HI, IL, KS, LA, MA, MD, MI, MO, MS, NC, NH, NJ, NY, OH, PA, PR, SC, TN, TX, UT, VA, VI.
Introduced / established
17 sourced range or established records. This is not an invasive warning.

3. Legal, ecological, and broader status

Seed-list status
1 state noxious-weed seed record; the Place chip matches exact scope.
Reported invasive here
2 ecological invasive reports.
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

0

exact source areas

Current introduced

17

exact source areas

Qualified

0

doubtful or extinct source rows

17 introduced source areas · World Checklist of Vascular Plants, version 16 v16, as of 2026-06-04
  • Alabama (AL)
  • Arkansas (AR)
  • Arizona (AZ)
  • California (CA)
  • Florida (FL)
  • Georgia (GA)
  • Hawaii (HI)
  • Illinois (IL)
  • Kentucky (KY)
  • Louisiana (LA)
  • Maryland (MD)
  • Missouri (MO)
  • Mississippi (MS)
  • New York (NY)
  • Puerto Rico (PR)
  • Tennessee (TN)
  • Texas (TX)

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.

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 (7)
Corroboration (7 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

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

    • Primary study Salvo2015: Salvo-Aires, F. (2015). Effects of woody weeds on fuels and fire behaviour in Eastern Australian forests and woodlands. PhD. Dissertation. University of Sydney.

      Shared row context: plant part leaves; fuel live; predrying yes; device calorimeter; site Salvo2015-1; sampling ND.

      • “time to flaming (s): 21”

        FLAMITS record 11662; Ignitability measurement.

      • Shared measurement context: Combustibility measurement.

        • “maximum energy flux (kW/m²): 125”

          FLAMITS record 11699.

        • “mass loss rate (g/s): 0.1”

          FLAMITS record 11773.

        • “calorific value (kcal/kg): 3819.14”

          FLAMITS record 11847.

        • “energy flux (kW/m²): 98”

          FLAMITS record 11884.

      • “flaming duration (s): 150”

        FLAMITS record 11736; Sustainability measurement.

      • “burnt biomass (%): 79”

        FLAMITS record 11810; Consumability measurement.

Fire-resistant shrubs instead

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

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

Ricinus communis (Ricinus communis). FireApproved. https://fireapproved.com/plants/ricinus-communis/. Last verified 2026-08-25.