CR

Kadua lucei

Stable

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Kadua lucei faces severe threats from habitat destruction due to urban development and agricultural expansion across its limited Hawaiian range. Invasive plant species compete directly with this endemic coffee family member, altering soil chemistry and light availability in its native forest understory. The species' extremely restricted distribution makes it particularly vulnerable to stochastic events and localized disturbances.

Threat summary

Habitat

This endemic Hawaiian shrub inhabits mesic to wet forest understory environments, typically growing in native mixed forests at mid-elevations. It requires specific soil conditions and partial shade provided by the native forest canopy.

Other threatened species in RUBIACEAE

EN

Arachnothryx tacanensis

Declining
CR

Arachnothryx tenorioi

Unknown
VU

Aidia abeidii

Unknown
EN

Arachnothryx tuxtlensis

Declining

Frequently asked questions

Why is Kadua lucei classified as Critically Endangered?
Kadua lucei is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Kadua lucei faces severe threats from habitat destruction due to urban development and agricultural expansion across its limited Hawaiian range. Invasive plant species compete directly with this endemic coffee family member, altering soil chemistry and light availability in its native forest understory. The species' extremely restricted distribution makes it particularly vulnerable to stochastic events and localized disturbances.
Where does Kadua lucei live?
Kadua lucei occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Kadua lucei?
The main threats to Kadua lucei are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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