Kauaʻi record · kba_plant_lophostemon_confertus

Brush Box

Lophostemon confertus

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About Brush Box

Brush Box (Lophostemon confertus) is a post-contact introduced tree documented on Kauaʻi through cultivation records. Native to eastern Australian subtropical forest, rainforest margins, and moist open forest. On Kauaʻi it is documented in established planted forest stands. The evidence supports ecosystem presence but does not demonstrate natural recruitment, current expansion, or invasive 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. The 1918–1959 Kauaʻi reforestation working register records 44,590 plants under Tristania conferta across 31 entries dated 1929–1959. 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: Lophostemon confertus
Common names: Brush Box · Brisbane box
Other names: Lophostemon confertus · Brush box · Brisbane box · Tristania conferta R.Br. · Melaleuca conferta (R.Br.) Steud. · Lophostemon arborescens Schott
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 latest reviewed explicit stand-presence evidence is from 2015. Present acreage, survival, natural regeneration, population trend, and ecological effects remain unconfirmed; the Bishop K? marker means naturalized status should not be stated more strongly than the forestry evidence allows.

Habitat and ecology

Habitats: Not yet assessed
Food and resource needs: Not yet assessed
Reproduction: Scented white axillary flowers with stamens in five bundles mature into woody cup-shaped capsules containing small seeds. Kauaʻi flowering, viable seed production, dispersal, and natural seedling recruitment are not documented.
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: Brush Box (Lophostemon confertus) is a post-contact introduced tree documented on Kauaʻi through cultivation records. Native to eastern Australian subtropical forest, rainforest margins, and moist open forest. On Kauaʻi it is documented in established planted forest stands. The evidence supports ecosystem presence but does not demonstrate natural recruitment, current expansion, or invasive effects.

Sources and further reading

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