Native Plants

Kaholuamanu Melicope

Melicope macropus

USDA symbol: MEMA6

perennial shrub

Hawaii: native

Have you ever wondered about the plants that once graced Hawaii’s landscapes but may now be lost forever? Meet the Kaholuamanu melicope (Melicope macropus), a native Hawaiian shrub that tells a sobering tale about plant conservation and the importance of protecting our native flora. Kaholuamanu melicope is a perennial shrub ...

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

Status: SH | Possibly extinct: Known only from historical occurrences but still some hope of rediscovery.

Kaholuamanu Melicope: A Lost Hawaiian Treasure

Have you ever wondered about the plants that once graced Hawaii’s landscapes but may now be lost forever? Meet the Kaholuamanu melicope (Melicope macropus), a native Hawaiian shrub that tells a sobering tale about plant conservation and the importance of protecting our native flora.

What is Kaholuamanu Melicope?

Kaholuamanu melicope is a perennial shrub that was once native to the Hawaiian Islands. Like other shrubs, it typically grows as a multi-stemmed woody plant, usually reaching less than 13-16 feet in height. This plant belongs to the citrus family and was previously known by the scientific synonym Pelea macropus.

Where Does It Grow?

This remarkable plant is endemic to Hawaii, meaning it naturally occurs nowhere else on Earth. Sadly, Kaholuamanu melicope is currently classified with a Global Conservation Status of SH – Possibly Extirpated. This means it’s known only from historical records, and while there’s still hope for rediscovery, no living specimens have been confirmed in recent times.

  • Species observed
  • No observations

Should You Plant Kaholuamanu Melicope?

The short answer is no – and here’s why this is actually important.

Due to its possibly extirpated status, Kaholuamanu melicope is not available for cultivation and should not be pursued for garden use. Even if seeds or specimens were somehow available, planting this rare species would only be appropriate through official conservation efforts with proper permits and scientific oversight.

Why This Matters for Native Plant Gardeners

The story of Kaholuamanu melicope serves as a powerful reminder of why choosing native plants for our gardens matters. When we support native plant cultivation, we help:

  • Preserve genetic diversity of local flora
  • Support conservation efforts for endangered species
  • Create habitat for native wildlife
  • Maintain the cultural and ecological heritage of our regions

Native Hawaiian Alternatives

Instead of seeking out this rare species, consider supporting conservation by planting other native Hawaiian plants that are available through responsible sources:

  • Other Melicope species that are not endangered
  • Native Hawaiian shrubs suited to your specific island and elevation
  • Plants that support native Hawaiian birds and insects

Supporting Conservation Efforts

If you’re passionate about rare Hawaiian plants like Kaholuamanu melicope, consider supporting local botanical gardens, native plant societies, and conservation organizations. These groups work tirelessly to document, protect, and potentially rediscover species like this one.

Sometimes the most meaningful way to honor a plant is to ensure its relatives and ecosystem companions continue to thrive. While we may not be able to grow Kaholuamanu melicope in our gardens, we can certainly grow our appreciation for Hawaii’s unique botanical heritage and our commitment to protecting what remains.

Remember: every native plant we choose to grow is a small act of conservation, helping to preserve the natural beauty and ecological integrity that makes Hawaii special.

Melicope macropus 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 macropus is also known as:

Pelea macropus | USDA symbol: PEMA9

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 macropus (Hillebr.) T.G. Hartley & B.C. Stone - Kaholuamanu melicope

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