CRCritically Endangered

Melicope stonei

**Alani kuahiwi (Melicope stonei)** Alani kuahiwi is a rare endemic Hawaiian shrub belonging to the citrus family (Rutaceae). This woody plant typically grows 1-3 meters tall with distinctive compound leaves arranged in groups of three leaflets.

Decreasing

Population trend

01Classification

Taxonomy & Classification

Kingdom

PLANTAE

Phylum

TRACHEOPHYTA

Class

MAGNOLIOPSIDA

Order

SAPINDALES

Family

RUTACEAE

Genus

Melicope

Melicope stonei belongs to the family RUTACEAE, order SAPINDALES, within the MAGNOLIOPSIDA class.

02Description

Species Profile

**Alani kuahiwi (Melicope stonei)** Alani kuahiwi is a rare endemic Hawaiian shrub belonging to the citrus family (Rutaceae). This woody plant typically grows 1-3 meters tall with distinctive compound leaves arranged in groups of three leaflets. The species produces small, inconspicuous flowers followed by capsular fruits. Like other native Hawaiian plants, it likely plays a role in supporting endemic insects and contributing to watershed stability in its montane forest habitat. The species is found exclusively on the island of Hawaii, where it inhabits mesic to wet forests at elevations between 1,200-2,100 meters. Historically documented from the Kohala Mountains and Mauna Kea, Alani kuahiwi grows in areas receiving substantial rainfall and cloud moisture, often in association with other native Hawaiian forest species including koa and ohia lehua. The primary threats to Alani kuahiwi include habitat degradation from invasive plant species, particularly aggressive weeds that alter forest composition and compete for resources. Feral ungulates such as pigs and cattle damage the understory vegetation and create disturbance that facilitates invasive species establishment. Climate change poses additional risks through altered precipitation patterns and temperature shifts that may affect the species' specialized montane habitat requirements. Conservation efforts focus on habitat protection within existing forest reserves and active management of invasive species in critical areas. Some populations receive protection through fencing to exclude feral animals, and botanical surveys continue to monitor known sites. The species' outlook remains precarious given its extremely limited distribution and ongoing habitat pressures. Without sustained conservation intervention, Alani kuahiwi faces continued population decline and potential extinction.

Based on the available information, the specific threats to Alani kuahiwi (Melicope stonei) have not been formally assessed or documented. Without a proper threat evaluation, it's unclear what particular dangers this plant species faces in its natural environment. The status of whether threats are increasing, stable, or decreasing cannot be determined without this assessment data.

Key Facts

IUCN StatusCritically Endangered (CR)
TrendDecreasing
GroupPlants
03Habitat

Habitat & Distribution

ForestMajor
04Threats

Threats

!

IUCN Red List: Critically Endangered

Based on the available information, the specific threats to Alani kuahiwi (Melicope stonei) have not been formally assessed or documented. Without a proper threat evaluation, it's unclear what particular dangers this plant species faces in its natural environment. The status of whether threats are increasing, stable, or decreasing cannot be determined without this assessment data.

Fire & fire suppression

Ongoing

Invasive non-native/alien species/diseases

Ongoing

Logging & wood harvesting

Ongoing

Other threat

Ongoing
05Conservation

Conservation Actions

Site/area protection
Ex-situ conservation
Legislation
Community

Community Sightings

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07Sources

Sources & Attribution

How to Cite

IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS

GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org

This page: SpeciesRadar (2026). Melicope stonei (Melicope stonei). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/alani-kuahiwi

Full citation guide & data usage terms