North America Native Plant

Kokee Stream Melicope

Botanical name: Melicope degeneri

USDA symbol: MEDE6

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Synonyms: Pelea degeneri B.C. Stone (PEDE8)   

Kokee Stream Melicope: A Rare Hawaiian Treasure Worth Protecting Meet the Kokee Stream melicope (Melicope degeneri), one of Hawaii’s most precious and endangered native shrubs. This remarkable plant isn’t just another pretty face in the garden world—it’s a living piece of Hawaiian natural history that desperately needs our help to ...

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

Kokee Stream Melicope: A Rare Hawaiian Treasure Worth Protecting

Meet the Kokee Stream melicope (Melicope degeneri), one of Hawaii’s most precious and endangered native shrubs. This remarkable plant isn’t just another pretty face in the garden world—it’s a living piece of Hawaiian natural history that desperately needs our help to survive.

What Makes This Plant Special?

The Kokee Stream melicope is a perennial shrub that typically grows as a multi-stemmed woody plant, usually reaching heights of 13 to 16 feet under ideal conditions. What sets this beauty apart are its distinctive compound leaves with three glossy green leaflets and clusters of small, cream-colored flowers that add a delicate charm to its appearance.

You might also know this plant by its scientific synonyms, including Pelea degeneri, but regardless of what you call it, this shrub represents something truly special in the plant kingdom.

Where Does It Come From?

This endemic Hawaiian species calls the island of Kauai home, specifically thriving in the cool, misty forests around the Kokee area. It’s found exclusively in Hawaii, making it a true island treasure that exists nowhere else on Earth.

The Reality Check: Why You Should Think Twice

Here’s the sobering truth: The Kokee Stream melicope is critically imperiled, with a Global Conservation Status of S1 and listed as Endangered in the United States. This means there are typically fewer than 1,000 individuals remaining in the wild, with only 5 or fewer known populations.

If you’re considering adding this plant to your garden, please proceed with extreme caution and responsibility. Only obtain plants from verified conservation programs or reputable native plant societies that can guarantee ethical sourcing. Never collect from the wild—doing so could push this species closer to extinction.

Growing Conditions and Care

Should you have access to responsibly sourced Kokee Stream melicope, here’s what this finicky beauty needs to thrive:

  • Climate: USDA hardiness zones 10-11 (tropical to subtropical)
  • Moisture: Consistent humidity and regular watering—this plant loves the misty mountain conditions of its native habitat
  • Soil: Well-draining, acidic soil that mimics forest floor conditions
  • Light: Partial shade to dappled sunlight
  • Protection: Shield from strong winds and harsh direct sunlight

Wetland Status and Habitat Preferences

Interestingly, this species has a Facultative Upland wetland status in Hawaii, meaning it usually prefers non-wetland areas but can occasionally tolerate wetter conditions. This flexibility likely helped it survive in the diverse microclimates of Kauai’s mountains.

Garden Design and Landscape Role

In the right hands, Kokee Stream melicope serves as a living conservation statement in native Hawaiian gardens or specialized plant collections. It’s not a plant for casual gardening—think of it more as adopting a piece of endangered natural heritage that requires dedicated care and attention.

The Bottom Line

While the Kokee Stream melicope is undoubtedly a fascinating and beautiful native Hawaiian plant, its critically endangered status means it’s not suitable for most home gardens. If you’re passionate about Hawaiian native plants and have experience with rare species cultivation, consider supporting conservation efforts instead of trying to grow it yourself.

For those committed to responsible cultivation, work only with established conservation programs and native plant societies. Remember, every plant of this species is precious, and our collective responsibility is to help this remarkable shrub survive for future generations to appreciate and protect.

Kokee Stream 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 degeneri (B.C. Stone) T.G. Hartley & B.C. Stone - Kokee Stream melicope

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