North America Native Plant

Kalalau Rim Dubautia

Botanical name: Dubautia kenwoodii

USDA symbol: DUKE

Life cycle: perennial

Habit: subshrub

Native status: Native to Hawaii  

Kalalau Rim Dubautia: A Precious Hawaiian Endemic in Critical Need of Protection Meet one of Hawaii’s rarest botanical treasures: the Kalalau rim dubautia (Dubautia kenwoodii). This little-known perennial herb represents both the incredible diversity of Hawaiian flora and the urgent conservation challenges facing island ecosystems. While most gardeners won’t be ...

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

Kalalau Rim Dubautia: A Precious Hawaiian Endemic in Critical Need of Protection

Meet one of Hawaii’s rarest botanical treasures: the Kalalau rim dubautia (Dubautia kenwoodii). This little-known perennial herb represents both the incredible diversity of Hawaiian flora and the urgent conservation challenges facing island ecosystems. While most gardeners won’t be adding this plant to their landscapes anytime soon, understanding its story helps us appreciate the delicate balance of native ecosystems and the importance of conservation efforts.

What Makes This Plant Special

Dubautia kenwoodii belongs to the remarkable Dubautia genus, a group of plants that showcases Hawaii’s evolutionary creativity. As a perennial forb herb, this species lacks the woody tissue found in shrubs and trees, instead maintaining its presence through underground structures that persist year after year. Like other members of its genus, it likely produces the characteristic small, composite flowers that make Dubautia species recognizable to botanists.

Where in the World Can You Find It?

This endemic Hawaiian species calls only the islands of Hawaii home, with an extremely limited distribution that makes it one of the state’s most precious botanical residents. The plant’s very name hints at its restricted range – Kalalau rim suggests an association with the dramatic clifftops and remote areas of Kauai’s spectacular landscape.

A Critical Conservation Story

Here’s where the story takes a serious turn. Dubautia kenwoodii carries a Global Conservation Status of S1, meaning it’s critically imperiled. In practical terms, this translates to five or fewer known occurrences in the wild, with likely fewer than 1,000 individual plants remaining. The species is officially listed as Endangered in the United States, placing it among the most threatened plants in the country.

This rarity status means that casual cultivation is neither appropriate nor advisable. The plant’s survival depends on carefully managed conservation efforts rather than backyard gardening enthusiasts.

Why This Matters for Gardeners

While you shouldn’t be planning to add Kalalau rim dubautia to your garden wishlist, its story offers valuable lessons for native plant enthusiasts:

  • It highlights the incredible diversity of Hawaiian endemic flora
  • It demonstrates how quickly rare species can slip toward extinction
  • It emphasizes the importance of supporting conservation organizations
  • It reminds us to appreciate and protect the native plants we can grow

Supporting Conservation Instead of Cultivation

Rather than attempting to grow this endangered species, consider these meaningful alternatives:

  • Support Hawaiian plant conservation organizations financially
  • Choose other native Hawaiian plants that are more widely available
  • Learn about and share the stories of endangered species
  • Advocate for habitat protection in Hawaii

The Bigger Picture

Dubautia kenwoodii represents just one thread in Hawaii’s complex ecological tapestry. While this particular species requires professional conservation management rather than home cultivation, its story reminds us why supporting native plant conservation matters. Every endangered species serves as both a warning about ecosystem fragility and a call to action for better stewardship of our natural heritage.

The next time you’re choosing plants for your own native garden, remember the Kalalau rim dubautia. While you can’t grow this particular treasure, you can honor its legacy by selecting other native species that support local ecosystems – and perhaps by contributing to the conservation efforts that might just help this remarkable plant survive for future generations to appreciate.

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

Dubautia Gaudich. - dubautia

Species

Dubautia kenwoodii G.D. Carr - Kalalau rim dubautia

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