Native Plants

Kokomalei

Chamaesyce kuwaleana

USDA symbol: CHKU

perennial shrub

Hawaii: native

Meet kokomalei (Chamaesyce kuwaleana), one of Hawaii’s rarest native plants that most gardeners will never encounter – and for good reason. This critically endangered Hawaiian endemic is fighting for survival in the wild, making it a plant that deserves our respect and protection rather than a spot in our home ...

Kokomalei 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.

Kokomalei: Hawaii’s Critically Endangered Native Shrub

Meet kokomalei (Chamaesyce kuwaleana), one of Hawaii’s rarest native plants that most gardeners will never encounter – and for good reason. This critically endangered Hawaiian endemic is fighting for survival in the wild, making it a plant that deserves our respect and protection rather than a spot in our home gardens.

What Makes Kokomalei Special

Kokomalei belongs to the spurge family and was once known scientifically as Euphorbia kuwaleana. This perennial shrub is a true Hawaiian native, found nowhere else on Earth. Like many island endemics, it has evolved unique characteristics that make it perfectly adapted to Hawaii’s specific environmental conditions.

Where Kokomalei Calls Home

This rare shrub is native exclusively to Hawaii, where it clings to existence in very limited locations. With only five or fewer known occurrences and fewer than 1,000 individual plants remaining in the wild, kokomalei has earned the sobering distinction of being classified as S1 – critically imperiled.

  • Species observed
  • No observations

A Shrub on the Brink

As a multi-stemmed woody plant, kokomalei typically grows as a shrub reaching less than 13-16 feet in height. However, what’s most important to understand about this plant isn’t its growth habits – it’s its precarious conservation status. The species is officially listed as Endangered in the United States, meaning it faces imminent extinction without immediate conservation efforts.

Why You Shouldn’t Plant Kokomalei (And What to Do Instead)

Here’s the bottom line: kokomalei is far too rare and endangered for home cultivation. Every remaining plant in the wild is precious, and removing seeds or cuttings from wild populations could push this species closer to extinction. Even well-meaning gardeners could inadvertently harm conservation efforts.

If you’re drawn to rare Hawaiian natives, consider these alternatives:

  • Work with local native plant societies to support conservation efforts
  • Choose other Hawaiian native plants that are more stable and available through ethical sources
  • Donate to organizations working to protect Hawaii’s endangered flora
  • Visit botanical gardens or preserves where you might see kokomalei in protected settings

Supporting Conservation Efforts

The best thing any plant lover can do for kokomalei is to support conservation organizations working to protect Hawaii’s native ecosystems. These groups are working tirelessly to study, protect, and potentially propagate this species in controlled environments where it might have a fighting chance at recovery.

While we can’t invite kokomalei into our gardens, we can certainly keep it in our hearts and support the dedicated scientists and conservationists working to ensure this unique Hawaiian treasure doesn’t disappear forever. Sometimes the most loving thing we can do for a plant is to admire it from afar and protect the wild spaces where it belongs.

Chamaesyce kuwaleana 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. Chamaesyce kuwaleana is also known as:

Euphorbia kuwaleana & | USDA symbol: EUKU

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: Euphorbiales
Family: Euphorbiaceae Juss. - Spurge family
Genus: Chamaesyce Gray - sandmat

Species: Chamaesyce kuwaleana (O. Deg. & Sherff) O. Deg. & I. Deg. - kokomalei

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