Kauaʻi record · kba_plant_corymbia_ficifolia

Red-flowering Gum

Corymbia ficifolia

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About Red-flowering Gum

Red-flowering Gum (Corymbia ficifolia) is an introduced tree treated as naturalized on Kauaʻi by Bishop Museum’s 2025 checklist and the 2026 Smithsonian checklist. Current extent is unassessed. A small tree endemic to a restricted part of southwestern Western Australia, where it occurs in seasonally moist temperate to Mediterranean-climate forest or woodland. It is widely cultivated for its colorful flowers. Naturalized on Kauaʻi in the Bishop Museum 2025 checklist (Status=nat; K=K), with Smithsonian 2026 naturalized-flora checklist corroboration; public occurrence is island-level only. The Bishop citation note “change to O?, no nat. spms.” applies to Oʻahu, not Kauaʻi. This evidence does not quantify current abundance 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: Corymbia ficifolia
Common names: Red-flowering Gum · Scarlet-flowering gum
Other names: Corymbia ficifolia · Red-flowering gum · Scarlet-flowering gum · Eucalyptus ficifolia F.Muell.
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: Current island-wide abundance, occupied habitat, reproductive distribution, population trend, and ecological effects on Kauaʻi remain unassessed.

Habitat and ecology

Habitats: Not yet assessed
Food and resource needs: Not yet assessed
Reproduction: Flowers are borne in terminal clusters and develop into woody urn-shaped capsules containing winged seeds. Successful recruitment requires pollination, capsule maturation, seed release, dispersal, and establishment. Kauaʻi-specific phenology and recruitment 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-flowering Gum (Corymbia ficifolia) is an introduced tree treated as naturalized on Kauaʻi by Bishop Museum’s 2025 checklist and the 2026 Smithsonian checklist. Current extent is unassessed. A small tree endemic to a restricted part of southwestern Western Australia, where it occurs in seasonally moist temperate to Mediterranean-climate forest or woodland. It is widely cultivated for its colorful flowers. Naturalized on Kauaʻi in the Bishop Museum 2025 checklist (Status=nat; K=K), with Smithsonian 2026 naturalized-flora checklist corroboration; public occurrence is island-level only. The Bishop citation note “change to O?, no nat. spms.” applies to Oʻahu, not Kauaʻi. This evidence does not quantify current abundance or ecological effects.

Sources and further reading

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