Native Plants

Uahiapele

Melicope barbigera

USDA symbol: MEBA3

perennial tree

Hawaii: native

If you’re passionate about native Hawaiian plants and want to make a meaningful contribution to conservation, uahiapele (Melicope barbigera) might just be the perfect addition to your tropical garden. This charming endemic tree is more than just a pretty face – it’s a living piece of Hawaiian natural heritage that’s ...

Uahiapele may be listed as rare in your area.
Global Conservation Status

Status: S2S3 | Vulnerable: Found only in a restricted range (even if abundant at some locations). Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals.

Uahiapele: A Rare Hawaiian Native Tree Worth Preserving in Your Garden

If you’re passionate about native Hawaiian plants and want to make a meaningful contribution to conservation, uahiapele (Melicope barbigera) might just be the perfect addition to your tropical garden. This charming endemic tree is more than just a pretty face – it’s a living piece of Hawaiian natural heritage that’s becoming increasingly rare in the wild.

Meet the Uahiapele

Uahiapele belongs to the citrus family and is found only in the Hawaiian Islands, making it a true island endemic. Previously known by botanists as Pelea barbigera, this native tree has earned its place as a treasured component of Hawaii’s unique forest ecosystems.

Where Does Uahiapele Call Home?

This special tree is native exclusively to Hawaii, where it naturally grows in the mesic to wet forests across several islands. Unfortunately, like many Hawaiian natives, uahiapele populations have declined significantly due to habitat loss and invasive species pressure.

  • Species observed
  • No observations

Why Consider Planting Uahiapele?

Important Conservation Note: Uahiapele has a Global Conservation Status of S2S3, which means it’s considered rare to uncommon in its native range. If you choose to grow this plant, please ensure you source it only from reputable native plant nurseries that propagate from ethically collected seeds or cuttings.

Here’s why this rare beauty deserves a spot in your garden:

  • Supports native Hawaiian ecosystem restoration
  • Provides habitat and food for native insects and birds
  • Adds authentic Hawaiian character to your landscape
  • Relatively low-maintenance once established
  • Beautiful glossy foliage and delicate flowers

What Does Uahiapele Look Like?

This perennial tree typically grows as a single-trunked specimen reaching 13-16 feet or more in height, though it can sometimes develop a multi-stemmed growth form depending on conditions. The tree features attractive compound leaves with a glossy green appearance that catches the light beautifully. Small, delicate white to pale yellow flowers appear seasonally, adding subtle charm to the overall appearance.

Perfect Garden Settings

Uahiapele thrives in:

  • Native Hawaiian plant gardens
  • Tropical restoration projects
  • Shade gardens with filtered light
  • Conservation-focused landscapes
  • Specimen tree plantings

Growing Conditions and Care

Climate Requirements: This tropical native is suited only for USDA hardiness zones 10-12, making it perfect for Hawaii, southern Florida, and similar warm climates.

Light and Soil: Uahiapele prefers partial shade to filtered sunlight, mimicking its natural forest habitat. Well-draining soil with good organic content works best, though the tree can adapt to various soil types as long as drainage is adequate.

Water Needs: Consistent moisture is key to success, but avoid waterlogged conditions. Think moist but not soggy – similar to what you’d find on a forest floor.

Planting and Care Tips

  • Plant in a location with morning sun and afternoon shade
  • Apply organic mulch around the base to retain moisture
  • Water regularly during dry periods, especially when young
  • Minimal pruning required – just remove dead or damaged branches
  • Be patient – like many natives, it may take time to establish

Supporting Pollinators and Wildlife

When uahiapele blooms, its small flowers attract various native Hawaiian insects, contributing to the local pollinator network. The tree also provides nesting sites and shelter for native birds, making it a valuable addition to wildlife-friendly gardens.

The Bottom Line

Uahiapele is definitely worth growing if you’re in the right climate zone and committed to supporting Hawaiian native plant conservation. Just remember the golden rule: always source your plants responsibly from reputable native plant nurseries. By choosing to grow this rare native tree, you’re not just adding beauty to your garden – you’re becoming a steward of Hawaiian natural heritage.

Whether you’re restoring a native ecosystem or simply want to connect with Hawaii’s unique botanical legacy, uahiapele offers both conservation value and quiet beauty that makes it a truly special addition to the right garden.

Melicope barbigera is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Melicope barbigera is also known as:

Pelea barbigera | USDA symbol: PEBA4

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Rosidae
Order: Sapindales
Family: Rutaceae Juss. - Rue family
Genus: Melicope (J.R. Forst. & G. Forst.) T.G. Hartley & B.C. Stone - melicope

Species: Melicope barbigera A. Gray - uahiapele

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA