North America Native Plant

Olopu

Botanical name: Viola chamissoniana chamissoniana

USDA symbol: VICHC

Life cycle: perennial

Habit: subshrub

Native status: Native to Hawaii  

Olopu: Hawaii’s Endangered Native Violet Worth Protecting Meet the olopu (Viola chamissoniana chamissoniana), a charming little Hawaiian native that’s become one of the islands’ most precious botanical treasures. This delicate violet might be small, but it carries the weight of conservation history on its petite shoulders. A Rare Hawaiian Gem ...

Rare plant alert!

Region: United States

Status: S2S3T1: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is 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) ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Region: United States

Olopu: Hawaii’s Endangered Native Violet Worth Protecting

Meet the olopu (Viola chamissoniana chamissoniana), a charming little Hawaiian native that’s become one of the islands’ most precious botanical treasures. This delicate violet might be small, but it carries the weight of conservation history on its petite shoulders.

A Rare Hawaiian Gem

Olopu is what botanists call an endemic species – it exists nowhere else on Earth except in Hawaii. This perennial herb belongs to the violet family, and like its mainland cousins, produces those characteristic heart-shaped leaves and cheerful flowers that make violets so beloved by gardeners worldwide.

But here’s where things get serious: olopu is listed as Endangered in the United States, with a Global Conservation Status that reflects its precarious situation in the wild. This isn’t just another pretty flower – it’s a living piece of Hawaii’s natural heritage that’s hanging on by a thread.

Where You’ll Find Olopu

Olopu calls the Hawaiian Islands home, and only the Hawaiian Islands. This geographic exclusivity makes it incredibly special, but also incredibly vulnerable. When a plant exists in just one place on Earth, any threat to that habitat becomes a threat to the entire species.

What Makes Olopu Special

As a forb herb, olopu is a vascular plant without woody tissue above ground. Think of it as nature’s version of a delicate perennial groundcover. It lacks the thick, woody stems of shrubs and trees, instead putting its energy into those lovely flowers and staying power that comes with being a perennial.

The plant produces small violet flowers typical of the Viola family, creating gentle splashes of color in Hawaii’s native understory. Its low-growing habit and perennial nature make it an important component of native Hawaiian plant communities.

Should You Grow Olopu?

Here’s where we need to have a heart-to-heart conversation. Yes, olopu would make a wonderful addition to a native Hawaiian garden, and growing rare plants can be an important part of conservation efforts. However, because this species is endangered, you absolutely must source any plants responsibly.

If you’re considering growing olopu, please:

  • Only purchase from reputable native plant nurseries that ethically propagate their plants
  • Never collect plants from the wild – this could push wild populations closer to extinction
  • Consider participating in official conservation programs if available
  • Contact local native plant societies or botanical gardens for guidance

Growing Conditions and Care

While specific cultivation information for olopu is limited due to its rarity, we can make educated guesses based on its native habitat and related species:

  • Climate: Thrives in tropical conditions (USDA zones 10-11)
  • Light: Likely prefers partial shade, mimicking its natural understory habitat
  • Moisture: Probably enjoys consistent moisture without waterlogging
  • Soil: Well-draining soil that retains some moisture

Because this is such a rare species, growing it successfully might require some trial and error, along with guidance from conservation experts or experienced native plant growers.

The Bigger Picture

Growing olopu isn’t just about adding a unique plant to your garden – it’s about participating in conservation. Every responsibly grown olopu plant represents hope for this endangered species. Native plants like olopu likely support Hawaii’s native pollinators and other wildlife, making them crucial components of healthy island ecosystems.

If you can’t find responsibly sourced olopu plants, consider growing other native Hawaiian plants that are more readily available. Every native plant you grow helps support local wildlife and preserves Hawaii’s unique botanical heritage.

A Plant Worth Protecting

Olopu may be small and endangered, but it represents something much larger – Hawaii’s incredible plant diversity and our responsibility to protect it. Whether you end up growing this rare violet or simply learning about it, you’re now part of its conservation story. And in a world where plant species are disappearing at an alarming rate, that’s no small thing.

Olopu

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Violales

Family

Violaceae Batsch - Violet family

Genus

Viola L. - violet

Species

Viola chamissoniana Gingins - olopu

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