North America Native Plant

Panaluu Mountain Rollandia

Botanical name: Cyanea purpurellifolia

USDA symbol: CYPU11

Life cycle: perennial

Habit: subshrub

Native status: Native to Hawaii  

Synonyms: Rollandia purpurellifolia Rock (ROPU)   

Panaluu Mountain Rollandia: A Critically Endangered Hawaiian Beauty Meet the Panaluu Mountain rollandia (Cyanea purpurellifolia), one of Hawaii’s most endangered native plants that’s as rare as it is remarkable. This unique shrub represents the incredible diversity of Hawaiian flora, but it also tells a sobering story about conservation that every ...

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

Panaluu Mountain Rollandia: A Critically Endangered Hawaiian Beauty

Meet the Panaluu Mountain rollandia (Cyanea purpurellifolia), one of Hawaii’s most endangered native plants that’s as rare as it is remarkable. This unique shrub represents the incredible diversity of Hawaiian flora, but it also tells a sobering story about conservation that every gardener should know.

What Makes This Plant Special?

The Panaluu Mountain rollandia is a perennial shrub that belongs to the bellflower family, and it’s found nowhere else on Earth except the Hawaiian Islands. This multi-stemmed woody plant typically grows to about 13-16 feet tall, though it can vary depending on environmental conditions. What really sets it apart are its distinctive purple-tinged leaves and the tubular flowers that evolved specifically to attract Hawaii’s native bird pollinators.

A Plant on the Brink

Here’s where things get serious: Cyanea purpurellifolia has a Global Conservation Status of S1, meaning it’s critically imperiled. With typically five or fewer occurrences and very few remaining individuals (less than 1,000), this species is officially listed as Endangered. This isn’t just a number on a conservation list – it’s a plant fighting for survival.

Where It Calls Home

This rare beauty is endemic to Hawaii, specifically found in the cool, moist montane forests of Oahu. It thrives in the filtered light and high humidity of these mountain environments, where it has evolved over thousands of years to fill its unique ecological niche.

Should You Grow It?

This is where responsible gardening comes into play. While the Panaluu Mountain rollandia would make an incredible addition to a native Hawaiian garden, its critically endangered status means you should only consider growing it if you can source it responsibly through legitimate conservation programs or botanical institutions.

If you do have access to responsibly sourced plants:

  • You’ll be contributing to conservation efforts
  • It makes an excellent specimen plant for native Hawaiian landscapes
  • Perfect for botanical collections focused on rare Hawaiian species
  • Supports native pollinator conservation when grown properly

Growing Conditions and Care

This isn’t your typical backyard shrub – the Panaluu Mountain rollandia has very specific needs that reflect its mountain forest origins:

  • Climate: USDA zones 10-11 only
  • Light: Filtered sunlight, never full sun
  • Moisture: High humidity and consistent moisture
  • Protection: Shelter from strong winds
  • Soil: Well-draining but moisture-retentive

The Bottom Line

The Panaluu Mountain rollandia represents both the incredible beauty of Hawaiian native plants and the urgent need for conservation. If you’re passionate about Hawaiian natives and have access to legitimate sources, growing this plant can be part of conservation efforts. However, most gardeners should focus on other native Hawaiian species that are more readily available and less critically endangered.

Remember, every plant we lose is a piece of Hawaii’s natural heritage gone forever. Whether you grow this species or simply learn about it, you’re helping to keep the story of Hawaii’s unique flora alive.

Panaluu Mountain Rollandia

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

Campanulales

Family

Campanulaceae Juss. - Bellflower family

Genus

Cyanea Gaudich. - cyanea

Species

Cyanea purpurellifolia (Rock) Lammers, Givnish & Systma - Panaluu Mountain rollandia

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