North America Native Plant

Hana Melicope

Botanical name: Melicope ovalis

USDA symbol: MEOV

Life cycle: perennial

Habit: tree

Native status: Native to Hawaii  

Synonyms: Pelea ovalis H. St. John (PEOV3)   

Hana Melicope: A Critically Endangered Hawaiian Treasure Worth Protecting Meet the Hana melicope (Melicope ovalis), a botanical gem that’s teetering on the edge of extinction. This native Hawaiian tree represents both the incredible diversity of island flora and the urgent need for conservation in our gardens. While growing this species ...

Rare plant alert!

Region: United States

Status: S1: Status is uncertain but is somewhere between the following rankings: Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Region: United States

Hana Melicope: A Critically Endangered Hawaiian Treasure Worth Protecting

Meet the Hana melicope (Melicope ovalis), a botanical gem that’s teetering on the edge of extinction. This native Hawaiian tree represents both the incredible diversity of island flora and the urgent need for conservation in our gardens. While growing this species requires special consideration due to its endangered status, understanding its story can inspire us all to become better stewards of native plants.

What Makes Hana Melicope Special

The Hana melicope is a perennial tree that’s exclusively native to Hawaii, making it a true island endemic. You might also see it listed under its scientific synonym, Pelea ovalis, in older botanical references. This woody plant typically grows as a single-stemmed tree, reaching heights greater than 13-16 feet under ideal conditions, though environmental factors can sometimes result in shorter, multi-stemmed growth forms.

Where You’ll Find It (Or Where You Used To)

This rare beauty is found only in Hawaii, with its natural range limited to specific areas on the Hawaiian islands. Its geographic distribution is extremely limited, which contributes significantly to its precarious conservation status.

A Conservation Crisis

Here’s the reality check: Hana melicope has a Global Conservation Status of S1, meaning it’s critically imperiled. With typically 5 or fewer occurrences and very few remaining individuals (less than 1,000), this species is officially listed as Endangered in the United States. This isn’t just another rare plant—it’s a species hanging on by a thread.

Should You Grow Hana Melicope?

The short answer is: only if you’re deeply committed to conservation and can source the plant responsibly. Here’s what you need to consider:

  • Responsible sourcing is absolutely critical – Never collect from wild populations
  • Work only with reputable conservation nurseries that propagate from legally obtained stock
  • Consider this a conservation commitment, not just a garden addition
  • You’ll need the right climate – USDA zones 10-12 only

Growing Conditions and Care

If you’re in the right location and have access to responsibly sourced plants, Hana melicope can be a meaningful addition to a native Hawaiian garden or conservation landscape. This tree appreciates:

  • Climate: Warm, humid tropical conditions (zones 10-12 only)
  • Light: Partial shade to full sun
  • Soil: Well-draining soil with moderate moisture
  • Protection: Shelter from strong winds
  • Temperature sensitivity: Cannot tolerate cold temperatures

Landscape Role and Design Ideas

In the right setting, Hana melicope works beautifully as:

  • A specimen tree in native Hawaiian gardens
  • Part of conservation and restoration landscapes
  • An educational feature in botanical collections
  • A conversation starter about Hawaiian plant conservation

Its glossy, oval-shaped leaves and small, cream-colored flowers provide subtle but distinctive aesthetic appeal that fits perfectly into authentic Hawaiian landscape designs.

Supporting Pollinators and Wildlife

While specific wildlife benefits aren’t well-documented due to the species’ rarity, the flowers likely support native Hawaiian insects and possibly some bird species, contributing to the island’s complex ecological web.

The Bottom Line

Hana melicope represents both a gardening challenge and a conservation opportunity. Unless you’re in Hawaii (or another suitable tropical zone) and committed to supporting endangered species recovery, this isn’t the plant for your garden. However, learning about species like this reminds us why choosing native plants for our own regions is so important.

If you’re inspired by the story of Hana melicope but live outside its growing range, consider researching and planting native species in your own area. Every garden can be a small act of conservation when we choose plants that belong.

Hana Melicope

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
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 ovalis (H. St. John) T.G. Hartley & B.C. Stone - Hana melicope

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