Native Plants

Makaha Valley Melicope

Melicope makahae

USDA symbol: MEMA7

perennial shrub

Hawaii: native

If you’re passionate about Hawaiian native plants and conservation gardening, you may have heard whispers about the elusive Makaha Valley melicope. This remarkable shrub, scientifically known as Melicope makahae, represents one of Hawaii’s most precious and endangered native treasures. The Makaha Valley melicope is a perennial shrub that’s as rare ...

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

Status: S1 | Critically imperiled: Typically 5 or fewer occurrences or under 1,000 remaining individuals.

United States

Status: Endangered | Endangered. In danger of extinction throughout all or a significant portion of its range.

Makaha Valley Melicope: A Precious Gem of Hawaiian Native Plants

If you’re passionate about Hawaiian native plants and conservation gardening, you may have heard whispers about the elusive Makaha Valley melicope. This remarkable shrub, scientifically known as Melicope makahae, represents one of Hawaii’s most precious and endangered native treasures.

What Makes This Plant So Special?

The Makaha Valley melicope is a perennial shrub that’s as rare as it is beautiful. As a native Hawaiian species, it plays a crucial role in the islands’ unique ecosystem. This multi-stemmed woody plant typically grows to less than 13-16 feet in height, with several stems arising from or near the ground – though it can vary depending on environmental conditions.

You might also encounter this plant listed under its synonym, Pelea makahae B.C. Stone, in older botanical references.

Where Does It Call Home?

This endemic beauty is found exclusively in Hawaii, specifically in the Makaha Valley area of Oahu. Its limited geographical distribution makes it incredibly special – and incredibly vulnerable.

  • Species observed
  • No observations

A Critical Conservation Concern

Here’s where things get serious, fellow plant lovers. The Makaha Valley melicope has a Global Conservation Status of S1, meaning it’s critically imperiled. In the United States, it’s classified as Endangered. With typically 5 or fewer occurrences and very few remaining individuals (less than 1,000), this plant is teetering on the brink of extinction.

What does this mean for gardeners? While we absolutely encourage supporting native Hawaiian plants, if you’re considering adding this species to your garden, you must ensure any plant material comes from responsible, legally authorized sources. Never collect from wild populations, and consider supporting conservation efforts instead.

Growing Conditions and Care

If you’re fortunate enough to obtain responsibly sourced Makaha Valley melicope, here’s what you need to know:

  • Climate: Thrives in USDA hardiness zones 10-12 (tropical and subtropical conditions)
  • Habitat: Prefers the warm, humid conditions typical of Hawaiian native plant communities
  • Growing requirements: While specific cultivation details are limited due to its rarity, most Hawaiian Melicope species prefer well-draining soils and locations with partial shade to full sun

Garden Design and Landscape Role

The Makaha Valley melicope is best suited for:

  • Specialized native Hawaiian plant collections
  • Conservation-focused gardens
  • Educational botanical displays
  • Restoration projects (with proper permits and guidance)

This isn’t a plant for the casual gardener – it’s a living piece of Hawaiian natural heritage that requires dedicated care and respect.

Supporting Conservation Efforts

Rather than attempting to grow this critically endangered species, consider:

  • Supporting Hawaiian native plant conservation organizations
  • Growing other, more stable native Hawaiian plants like native hibiscus or ohia lehua
  • Participating in habitat restoration volunteer programs
  • Donating to botanical gardens working on Hawaiian plant conservation

The Bottom Line

The Makaha Valley melicope represents everything that makes Hawaiian native plants extraordinary – and everything that makes their conservation so urgent. While this remarkable shrub might not be suitable for most home gardens due to its endangered status, learning about it helps us appreciate the incredible diversity and fragility of Hawaii’s native plant communities.

If you’re drawn to Hawaiian native plants, there are many wonderful alternatives that can bring the spirit of the islands to your garden while supporting conservation efforts. Every native plant we grow is a small act of preservation for these irreplaceable natural treasures.

Melicope makahae 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 makahae is also known as:

Pelea makahae | USDA symbol: PEMA10

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 makahae (B.C. Stone) T.G. Hartley & B.C. Stone - Makaha Valley melicope

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