Kauaʻi record · kba_plant_elaeocarpus_angustifolius
Blue Marble Tree
Elaeocarpus angustifolius
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About Blue Marble Tree
Blue Marble Tree (Elaeocarpus angustifolius) is a post-contact introduced tree documented on Kauaʻi through historical forestry planting records. The reviewed records do not establish present survival. A wet-tropical forest tree native from southern China through Malesia to the southwest Pacific. A 2015 DLNR forest-reserve management plan reproduces a named botanical-survey record of Elaeocarpus angustifolius as naturalized in a Kauaʻi forest reserve. The survey date is not stated, and the record does not establish 2026 abundance or current extent; public occurrence remains island-level only. Neither invasive behavior nor current population trend is inferred.
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
- Elaeocarpus angustifolius
- Common names
- Blue Marble Tree · Blue quandong · Indian bead tree
- Other names
- Elaeocarpus angustifolius · Blue marble tree · Blue quandong · Indian bead tree
- 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 botanical-survey date was not stated in the June 2015 plan, and current survival, abundance, extent, reproduction, and ecological effects on Kauaʻi remain unconfirmed.
Habitat and ecology
- Habitats
- Not yet assessed
- Food and resource needs
- Not yet assessed
- Reproduction
- Bisexual flowers in racemes develop into fleshy blue drupes with a hard stone containing seeds. Successful recruitment requires pollination, fruit maturation, dispersal, and seed germination. Kauaʻi-specific flowering, fruiting, dispersers, 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
- Blue Marble Tree (Elaeocarpus angustifolius) is a post-contact introduced tree documented on Kauaʻi through historical forestry planting records. The reviewed records do not establish present survival. A wet-tropical forest tree native from southern China through Malesia to the southwest Pacific. A 2015 DLNR forest-reserve management plan reproduces a named botanical-survey record of Elaeocarpus angustifolius as naturalized in a Kauaʻi forest reserve. The survey date is not stated, and the record does not establish 2026 abundance or current extent; public occurrence remains island-level only. Neither invasive behavior nor current population trend is inferred.
Sources and further reading
- https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:833771-1
- https://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=250076942
- https://dlnr.hawaii.gov/forestry/files/2013/02/2015_NK_management_plan_final.pdf
- https://naturalhistory2.si.edu/botany/hawaiianflora/speciesdescr.cfm?genus=Elaeocarpus&species=angustifolius