North America Native Plant

Kauai Tetramolopium

Botanical name: Tetramolopium consanguineum leptophyllum var. kauense

USDA symbol: TECOK

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Kauai Tetramolopium: A Rare Hawaiian Native Worth Protecting Meet the Kauai tetramolopium (Tetramolopium consanguineum leptophyllum var. kauense), a special little Hawaiian native that deserves our attention and respect. This perennial shrub represents the unique botanical heritage of Hawaii, specifically the island of Kauai, and carries an important conservation story that ...

Rare plant alert!

Region: Conservation status by state

Status: S1TH: 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) ⚘

Kauai Tetramolopium: A Rare Hawaiian Native Worth Protecting

Meet the Kauai tetramolopium (Tetramolopium consanguineum leptophyllum var. kauense), a special little Hawaiian native that deserves our attention and respect. This perennial shrub represents the unique botanical heritage of Hawaii, specifically the island of Kauai, and carries an important conservation story that every gardener should know about.

A True Hawaiian Original

The Kauai tetramolopium is authentically native to Hawaii, making it part of the islands’ precious endemic flora that evolved in isolation over millions of years. This plant grows exclusively in Hawaii, representing a living piece of the islands’ natural history that existed long before human settlement.

What Makes This Plant Special

As a perennial shrub, the Kauai tetramolopium typically develops multiple stems arising from or near the ground, usually staying under 13-16 feet in height. Like many Hawaiian natives, it’s adapted to the unique growing conditions found in the Pacific islands, though specific details about its particular needs remain part of ongoing botanical research.

An Important Conservation Note

Here’s where things get serious: the Kauai tetramolopium has a Global Conservation Status of S1TH, which indicates it’s critically imperiled. This means the plant faces a very high risk of extinction, making it one of Hawaii’s botanical treasures that needs our protection.

If you’re considering adding this rare beauty to your garden, it’s crucial to source it responsibly. This means:

  • Only purchase from reputable native plant nurseries
  • Ensure plants are propagated from legally collected seed or cuttings
  • Never collect from wild populations
  • Consider supporting conservation efforts for Hawaiian native plants

Garden Potential and Considerations

While specific growing information for this particular variety is limited, Hawaiian native plants generally thrive in conditions that mimic their natural habitat. Given its shrub form and perennial nature, the Kauai tetramolopium could potentially serve as:

  • A conversation starter about Hawaiian conservation
  • Part of a native Hawaiian plant collection
  • A unique specimen plant for collectors of rare species

The Bigger Picture

Growing the Kauai tetramolopium isn’t just about adding another plant to your garden—it’s about participating in conservation. By choosing to grow rare native Hawaiian plants responsibly, you’re helping preserve genetic diversity and supporting the ongoing efforts to protect Hawaii’s unique botanical heritage.

If you’re drawn to Hawaiian natives but want more readily available options, consider exploring other members of the Tetramolopium genus or consulting with native plant societies in Hawaii for guidance on suitable alternatives that won’t strain wild populations.

A Plant for the Conscientious Gardener

The Kauai tetramolopium represents both opportunity and responsibility. While its rarity makes it a challenging choice for the average gardener, those committed to conservation and willing to source responsibly can play a role in preserving this remarkable Hawaiian endemic. Just remember: with great plants comes great responsibility!

Kauai Tetramolopium

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Tetramolopium Nees - tetramolopium

Species

Tetramolopium consanguineum (A. Gray) Hillebr. - forest tetramolopium

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