United States / Grow / screw-pod wattle

screw-pod wattle (Acacia implexa)
Photo: (c) Brian du Preez, some rights reserved (CC BY-SA) (CC BY-SA), via iNaturalist. Species-typical, not necessarily this cultivar.

screw-pod wattle

Acacia implexa · Fabaceae · all Acacia records · also called Lightwood · Wikipedia

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Acacia implexa is on-list in the evidence table, the reader-visible direction computed from its accepted rows. The record carries limited evidence, and Lightwood traces to Fire Resistant and Retardant Plants as its selected source lineage.

Use related plants to compare this result with other cited forms. The genus page supplies taxonomic context while leaving the implexa evidence boundary intact. That separation matters here: the listing, limited pack, and named source belong to this record, rather than to every member gathered under the broader genus route. Revisit the evidence table to keep that boundary visible.

Form
shrub
Region
Australia; Victoria, Australia
Rated in
Australian Capital Territory, Australia; Global; Victoria, Australia
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
Australian Capital Territory, Australia; Global; Victoria, Australia

2. Why this plant is relevant here

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 (2)

Corroboration (1 rows from 1 source)
  • Canberra Plant Selector — fire-retardant attribute — ACT Government / Everyday Climate Choices · live tool capture 2026-08-25 · original source Corroboration Compilation lineage: act-fire-retardant-plants-canberra

    “Fire Retardant — Yes — Acacia implexa”

    The live Canberra Plant Selector marks “Acacia implexa” as “Fire Retardant: Yes.”

Listed without a rating (9)
Corroboration (9 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

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

    • Primary study Gill1996: Gill, M., & Moore, P. (1996). Ignitibility of leaves of Australian plants. Centre for Plant Biodiversity Research, CSIRO Plant Industry.

      Shared row context: Ignitability measurement; plant part leaves; fuel live; device muffle furnace; site Gill1996-1; sampling march to april.

      • “time to flaming (s): 18.98”

        FLAMITS record 3809; predrying no.

      • “time to flaming (s): 5.55”

        FLAMITS record 3857; predrying yes.

    • 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): 17”

        FLAMITS record 11668; Ignitability measurement.

      • Shared measurement context: Combustibility measurement.

        • “maximum energy flux (kW/m²): 193”

          FLAMITS record 11705.

        • “mass loss rate (g/s): 0.15”

          FLAMITS record 11779.

        • “calorific value (kcal/kg): 3924.23”

          FLAMITS record 11853.

        • “energy flux (kW/m²): 150”

          FLAMITS record 11890.

      • “flaming duration (s): 93”

        FLAMITS record 11742; Sustainability measurement.

      • “burnt biomass (%): 92”

        FLAMITS record 11816; Consumability measurement.

Last verified 2026-08-23. JSON (CC BY 4.0)

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Acacia implexa (Lightwood). FireApproved. https://fireapproved.com/plants/acacia-implexa/. Last verified 2026-08-23.