North America Native Plant

Oahu Violet

Botanical name: Viola oahuensis

USDA symbol: VIOA

Life cycle: perennial

Habit: subshrub

Native status: Native to Hawaii  

The Oahu Violet: A Critically Endangered Hawaiian Treasure Meet the Oahu violet (Viola oahuensis), one of Hawaii’s most precious and precarious native plants. This little violet might not be showing up at your local nursery anytime soon – and for very good reason. Let’s dive into why this botanical rarity ...

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

The Oahu Violet: A Critically Endangered Hawaiian Treasure

Meet the Oahu violet (Viola oahuensis), one of Hawaii’s most precious and precarious native plants. This little violet might not be showing up at your local nursery anytime soon – and for very good reason. Let’s dive into why this botanical rarity deserves our attention and protection.

What Makes the Oahu Violet Special?

The Oahu violet is a native Hawaiian perennial that belongs to the familiar violet family. As a forb herb, it’s a vascular plant without significant woody tissue, meaning it stays relatively soft and herbaceous throughout its life. Like other violets, it lacks the thick, woody growth you’d see in shrubs or trees, instead maintaining a more delicate, ground-hugging presence.

Where Does It Call Home?

This violet is endemic to Hawaii, meaning it exists nowhere else on Earth. Its entire world is confined to the Hawaiian Islands, making it incredibly special – and incredibly vulnerable.

A Plant in Crisis

Here’s where things get serious: the Oahu violet carries a Global Conservation Status of S1, which translates to Critically Imperiled. This means we’re talking about extreme rarity – typically five or fewer occurrences with very few remaining individuals (fewer than 1,000 plants total). In the United States, it’s officially listed as Endangered.

When a plant reaches this level of rarity, every single individual becomes precious beyond measure. These aren’t just statistics – they represent a species hanging on by a thread.

Should You Plant the Oahu Violet?

This is where we need to have an honest conversation. While the idea of growing this rare native might seem appealing, the reality is quite different. Given its critically imperiled status, the Oahu violet should only be cultivated through official conservation programs with responsibly sourced material.

If you’re passionate about supporting this species, consider:

  • Supporting Hawaiian native plant conservation organizations
  • Participating in habitat restoration efforts in Hawaii
  • Choosing other native Hawaiian plants that aren’t critically endangered for your garden
  • Spreading awareness about Hawaii’s unique and threatened flora

Habitat Flexibility

Interestingly, the Oahu violet has a Facultative wetland status in Hawaii, meaning it can adapt to both wetland and non-wetland conditions. This flexibility might seem like it would help the species survive, but unfortunately, habitat loss and other threats have still pushed it to the brink.

A Conservation Priority

The Oahu violet represents something bigger than just one small plant – it’s a symbol of Hawaii’s incredible endemic biodiversity and the urgent need for conservation action. Every endemic species lost is irreplaceable, representing millions of years of unique evolutionary history.

Rather than attempting to grow this critically endangered beauty, the best way to honor the Oahu violet is to support conservation efforts and choose other native Hawaiian plants that aren’t fighting for survival. There are many wonderful native Hawaiian species that can bring island beauty to appropriate gardens while supporting local ecosystems without putting rare species at further risk.

Sometimes the most loving thing we can do for a plant is to admire it from afar and work to protect its remaining wild populations. The Oahu violet deserves our respect, our protection, and our commitment to preserving Hawaii’s irreplaceable natural heritage.

Oahu Violet

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 oahuensis Forbes - Oahu violet

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