Kauaʻi record · kba_plant_eucalyptus_sideroxylon
Red Ironbark
Eucalyptus sideroxylon
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About Red Ironbark
Red Ironbark (Eucalyptus sideroxylon) is a post-contact introduced tree documented on Kauaʻi through cultivation records. Native to woodland of southeastern Queensland, New South Wales, and northern Victoria. On Kauaʻi, dated government inventory evidence documents an established planted forest population at species rank. The evidence does not demonstrate naturalization, current recruitment, spread, or ecological effects.
Kauaʻi evidence
Taxonomic identity, tree form, diagnostic morphology and island occurrence use the linked reviewed sources. Historical planting, cultivation, naturalization and invasive status are separate. Generated imagery is not occurrence evidence.
Names and classification
- Scientific name
- Eucalyptus sideroxylon
- Common names
- Red Ironbark · Mugga ironbark
- Other names
- Eucalyptus sideroxylon · Red ironbark · Mugga ironbark
- Record type
- Species
Kauaʻi occurrence and status
- Kauaʻi occurrence
- Recorded on Kauaʻi
- Origin
- Introduced
- Conservation status
- Not yet assessed
- Evidence date
- 2026-10-06
- Evidence limits
- The last quantitative evidence reviewed is the 1998 forest survey. Present survival, acreage, natural regeneration, population trend, and ecological effects are unconfirmed, and the Kauaʻi forest population is not assigned to either accepted subspecies.
Habitat and ecology
- Habitats
- Not yet assessed
- Food and resource needs
- Not yet assessed
- Reproduction
- Seven-budded axillary umbels open into stamen-rich flowers and mature into woody capsules with small seeds. Recruitment requires pollination, capsule maturation, seed release, and seedling survival; Kauaʻi flowering, seed production, and natural regeneration are unmeasured.
- Shelter
- Not yet assessed
- Growth form
- Tree
Threats and conservation
- Monitoring
- Not yet assessed
- Data gaps
- Current population extent and trajectory · Additional species-specific ecological and conservation sources
Process and seasonal context
- Seasonal timing
- Not yet assessed
- Seasonal description
- Red Ironbark (Eucalyptus sideroxylon) is a post-contact introduced tree documented on Kauaʻi through cultivation records. Native to woodland of southeastern Queensland, New South Wales, and northern Victoria. On Kauaʻi, dated government inventory evidence documents an established planted forest population at species rank. The evidence does not demonstrate naturalization, current recruitment, spread, or ecological effects.
Sources and further reading
- https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:593359-1
- https://apps.lucidcentral.org/euclid/text/entities/eucalyptus_sideroxylon.htm
- https://hbs.bishopmuseum.org/publications/pdf/tr75.pdf
- https://editedimages.s3.us-east-1.amazonaws.com/Imadaetal.2025Hawaiianvascularplants.xlsx
- https://dlnr.hawaii.gov/forestry/files/2013/02/Kaureport.pdf