Kauaʻi record · kba_plant_corymbia_citriodora
Lemon-scented gum
Corymbia citriodora
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About Lemon-scented gum
Lemon-scented gum (Corymbia citriodora) is an introduced tree treated as naturalized on Kauaʻi by Bishop Museum’s 2025 checklist and the 2026 Smithsonian checklist. Current extent is unassessed. Native from Queensland to northeastern New South Wales, where Plants of the World Online places the species chiefly in the seasonally dry tropical biome. It is a tall, lignotuber-forming eucalypt of open forest and woodland and tolerates a pronounced dry season once established. On Kauaʻi it is documented as naturalized; this plate makes no claim about abundance, impact, or invasive status.
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. The 1918–1959 Kauaʻi reforestation working register records 18,628 plants under Eucalyptus citriodora across 25 entries dated 1921–1956. These are recorded planting quantities, not counts of surviving trees, and they do not by themselves establish current persistence, naturalization, or ecological impact. Source: Kauaʻi Reforestation Plantings 1918–1959 working register (user-supplied; reconciled 6 October 2026).
Names and classification
- Scientific name
- Corymbia citriodora
- Common names
- Lemon-scented gum · citron-scented gum
- Other names
- Corymbia citriodora · lemon-scented gum · citron-scented gum · Eucalyptus citriodora · Blakella citriodora
- Record type
- Species
Kauaʻi occurrence and status
- Kauaʻi occurrence
- Recorded on Kauaʻi
- Origin
- Introduced
- Conservation status
- Not yet assessed
- Evidence date
- 2026-10-05
- Evidence limits
- Current extent is unassessed; public locality is island level only.
Habitat and ecology
- Habitats
- Not yet assessed
- Food and resource needs
- Not yet assessed
- Reproduction
- Not yet assessed
- Shelter
- Not yet assessed
- Growth form
- Tall evergreen 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
- Lemon-scented gum (Corymbia citriodora) is an introduced tree treated as naturalized on Kauaʻi by Bishop Museum’s 2025 checklist and the 2026 Smithsonian checklist. Current extent is unassessed. Native from Queensland to northeastern New South Wales, where Plants of the World Online places the species chiefly in the seasonally dry tropical biome. It is a tall, lignotuber-forming eucalypt of open forest and woodland and tolerates a pronounced dry season once established. On Kauaʻi it is documented as naturalized; this plate makes no claim about abundance, impact, or invasive status.
Sources and further reading
- https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:986336-1
- https://profiles.ala.org.au/opus/foa/profile/Corymbia%20citriodora
- https://apps.lucidcentral.org/euclid/pdf/entities/corymbia_citriodora.pdf
- https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:986336-1/general-information
- https://hbs.bishopmuseum.org/publications/pdf/tr75.pdf
- https://editedimages.s3.us-east-1.amazonaws.com/Imadaetal.2025Hawaiianvascularplants.xlsx
- https://doi.org/10.5479/si.32124043
- https://research.fs.usda.gov/download/treesearch/47617.pdf