North America Native Plant

Hawai’i Plantain

Botanical name: Plantago hawaiensis

USDA symbol: PLHA2

Life cycle: perennial

Habit: forb

Native status: Native to Hawaii  

Synonyms: Plantago hawaiensis (A. Gray) Pilg. var. laxa Pilg. (PLHAL)   

Hawai’i Plantain: A Critically Endangered Native Treasure Meet the Hawai’i plantain (Plantago hawaiensis), one of the Hawaiian Islands’ most precious and precarious native plants. This unassuming little perennial herb holds the distinction of being critically imperiled, making it a plant that deserves our attention not for our gardens, but for ...

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

Hawai’i Plantain: A Critically Endangered Native Treasure

Meet the Hawai’i plantain (Plantago hawaiensis), one of the Hawaiian Islands’ most precious and precarious native plants. This unassuming little perennial herb holds the distinction of being critically imperiled, making it a plant that deserves our attention not for our gardens, but for our conservation efforts.

A Plant on the Brink

Before we dive into what makes this plant special, there’s something crucial you need to know: Hawai’i plantain is listed as Endangered with 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 isn’t a plant you’ll find at your local nursery – and that’s probably for the best.

What Exactly Is Hawai’i Plantain?

Plantago hawaiensis is a native Hawaiian perennial forb – essentially a non-woody plant that lacks significant woody tissue above ground. Like other members of the plantain family, it’s an herbaceous plant that maintains perennating buds at or below the ground surface, allowing it to return year after year in its native habitat.

Where Does It Call Home?

This rare gem is endemic to Hawaii, meaning it exists nowhere else on Earth. Its entire geographical distribution is limited to the Hawaiian Islands, where it clings to existence in what are likely very specific high-elevation environments.

Should You Grow Hawai’i Plantain?

Here’s where we need to have a serious conversation. While the idea of growing a native Hawaiian plant might sound appealing, Hawai’i plantain’s endangered status means this isn’t a plant for the average gardener. In fact, here’s why you should think twice:

  • Conservation priority: Every remaining plant in the wild is crucial for the species’ survival
  • Limited availability: Responsible sourcing would be extremely difficult, if not impossible
  • Unknown growing requirements: We simply don’t have enough information about its specific needs
  • Legal considerations: Harvesting or disturbing wild populations could have legal implications

The Responsible Approach

If you’re passionate about Hawaiian native plants and conservation, consider these alternatives:

  • Support Hawaiian native plant conservation organizations
  • Choose other native Hawaiian plants that aren’t endangered for your garden
  • Participate in habitat restoration efforts
  • Spread awareness about endangered Hawaiian flora

What We Don’t Know (And Why That Matters)

The unfortunate reality is that much about Hawai’i plantain remains unknown – from its specific growing conditions and wildlife benefits to its wetland status and propagation methods. This knowledge gap exists partly because the plant is so rare that extensive study becomes challenging without potentially harming the few remaining populations.

A Plant Worth Protecting

While Hawai’i plantain might not be destined for your garden, it represents something far more valuable: the incredible biodiversity of Hawaii’s native ecosystems and our responsibility to protect what remains. Sometimes the most important plants are the ones we admire from afar and work to preserve for future generations.

If you encounter information about Hawai’i plantain cultivation or seed availability, approach it with caution. The best way to honor this plant is to support conservation efforts that protect its remaining wild populations and the precious ecosystems they call home.

Hawai’i Plantain

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

Plantaginales

Family

Plantaginaceae Juss. - Plantain family

Genus

Plantago L. - plantain

Species

Plantago hawaiensis (A. Gray) Pilg. - Hawai'i plantain

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