Native Plants

Kauai Cyanea

Cyanea fissa fissa

USDA symbol: CYFIF

perennial shrub

Hawaii: native

Meet the Kauai cyanea (Cyanea fissa fissa), one of Hawaii’s most elusive native shrubs that you’ve probably never heard of—and there’s a good reason for that. This remarkable plant represents both the incredible diversity and heartbreaking fragility of Hawaii’s native flora. The Kauai cyanea belongs to a fascinating group of ...

Kauai Cyanea may be listed as rare in your area.
Global Conservation Status

Status: S3T3 | Subspecies or variety is vulnerable: Found only in a restricted range, even if abundant at some locations. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals.

Kauai Cyanea: A Rare Hawaiian Treasure Not Meant for Your Garden

Meet the Kauai cyanea (Cyanea fissa fissa), one of Hawaii’s most elusive native shrubs that you’ve probably never heard of—and there’s a good reason for that. This remarkable plant represents both the incredible diversity and heartbreaking fragility of Hawaii’s native flora.

What Makes This Plant Special?

The Kauai cyanea belongs to a fascinating group of Hawaiian plants called lobelioids, which evolved from a single ancestor into dozens of unique species found nowhere else on Earth. This particular species is a perennial shrub that can grow into a multi-stemmed woody plant, typically reaching heights of 13-16 feet under ideal conditions.

Also known by its scientific synonym Cyanea gayana Rock var. wainihaensis, this plant is part of Hawaii’s incredible native heritage that developed over millions of years in isolation.

Where Does It Come From?

As its common name suggests, the Kauai cyanea is native to Hawaii, specifically found within the Hawaiian island chain. This endemic species represents the unique evolutionary story of Hawaiian flora, having adapted to very specific local conditions over countless generations.

  • Species observed
  • No observations

Why You Shouldn’t (and Can’t) Grow It

Here’s where things get serious: the Kauai cyanea has a conservation status of S3T3, indicating it’s either extremely rare or possibly extinct in the wild. This isn’t a plant you can simply order from a nursery or casually add to your landscape design.

Several important factors make this plant unsuitable for home cultivation:

  • Extremely limited availability due to rarity
  • Highly specialized growing requirements adapted to specific Hawaiian ecosystems
  • Conservation concerns that prioritize preservation over cultivation
  • Lack of established propagation methods for home gardeners

What This Means for Gardeners

If you’re passionate about Hawaiian native plants, the story of Kauai cyanea serves as an important reminder about conservation and responsible gardening. Instead of seeking out rare species like this one, consider these alternatives:

  • Support conservation organizations working to preserve Hawaiian endemics
  • Choose more common Hawaiian natives that are available through ethical nurseries
  • Focus on creating habitat for native wildlife using appropriate, available native plants
  • Learn about and advocate for the protection of rare species like Kauai cyanea

The Bigger Picture

The Kauai cyanea represents something bigger than just one rare plant—it’s a symbol of Hawaii’s unique natural heritage and the urgent need for conservation. Many of Hawaii’s native Cyanea species have already been lost forever, making the protection of remaining populations critical.

While you can’t grow this particular species in your garden, you can still make a difference by supporting native plant conservation, choosing responsibly sourced native alternatives, and spreading awareness about Hawaii’s incredible—and incredibly vulnerable—endemic flora.

Moving Forward Responsibly

Sometimes the most responsible thing a gardener can do is appreciate a plant from afar and focus their growing efforts on species that can be ethically cultivated. The Kauai cyanea reminds us that not every beautiful plant belongs in our gardens—some are meant to be preserved in their native habitats for future generations to marvel at and protect.

Cyanea fissa fissa 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. Cyanea fissa fissa is also known as:

Cyanea gayana Rock var. wainihaensis | USDA symbol: CYGAW

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: Asteridae
Order: Campanulales
Family: Campanulaceae Juss. - Bellflower family
Genus: Cyanea Gaudich. - cyanea

Species: Cyanea fissa (H. Mann) Hillebr. - Kauai cyanea

Subspecies: Cyanea fissa (H. Mann) Hillebr. ssp. fissa - Kauai cyanea

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