North America Native Plant

Maui Fern

Botanical name: Microlepia mauiensis

USDA symbol: MIMA11

Life cycle: perennial

Habit: forb

Native status: Native to Hawaii  

Meet the Maui Fern: Hawaii’s Rare and Remarkable Native Treasure If you’re passionate about native Hawaiian plants, you’ve probably heard of some of the islands’ more famous botanical residents. But tucked away in the misty forests of Maui lives a lesser-known gem that deserves our attention and protection: the Maui ...

Rare plant alert!

Region: Conservation status by state

Status: S2: Status is uncertain but is somewhere between the following rankings: 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) ⚘

Meet the Maui Fern: Hawaii’s Rare and Remarkable Native Treasure

If you’re passionate about native Hawaiian plants, you’ve probably heard of some of the islands’ more famous botanical residents. But tucked away in the misty forests of Maui lives a lesser-known gem that deserves our attention and protection: the Maui fern, scientifically known as Microlepia mauiensis.

What Makes the Maui Fern Special?

The Maui fern is a perennial native species that belongs to the fascinating world of Hawaiian endemic plants. Unlike the flashy flowering plants that often steal the spotlight, this humble fern plays a quiet but important role in Hawaii’s native ecosystems. As a forb—essentially a vascular plant without significant woody tissue—it represents the understory vegetation that once carpeted much of Hawaii’s native forests.

Where Does the Maui Fern Call Home?

This endemic beauty is found exclusively in Hawaii, making it a true island treasure. Its limited geographic distribution means you won’t find this species anywhere else on Earth—a reminder of how unique and irreplaceable Hawaii’s native flora truly is.

A Plant in Need of Protection

Here’s where things get serious: the Maui fern carries a Global Conservation Status of S2, which translates to Imperiled. This designation means the species faces extreme rarity and is especially vulnerable to extinction. With typically only 6 to 20 known occurrences and possibly just 1,000 to 3,000 remaining individuals, every single Maui fern matters.

This rarity status is a wake-up call for all of us who care about preserving Hawaii’s natural heritage. The Maui fern isn’t just another pretty plant—it’s a living piece of evolutionary history that took millions of years to develop.

Should You Grow Maui Fern in Your Garden?

The short answer is: only if you can source it responsibly. Given its imperiled status, we strongly recommend that home gardeners consider this species only if they can obtain plants or spores from:

  • Reputable native plant societies with conservation programs
  • Botanical gardens involved in Hawaiian plant preservation
  • Licensed nurseries specializing in rare Hawaiian natives
  • Conservation organizations with propagation permits

Never collect Maui fern from the wild—this could push the species closer to extinction and may also be illegal.

Supporting Conservation Efforts

Even if you can’t grow Maui fern in your own garden, there are meaningful ways to support its conservation:

  • Choose other native Hawaiian ferns for your landscape
  • Support organizations working to protect Hawaiian native habitats
  • Participate in habitat restoration projects
  • Educate others about the importance of endemic species

Alternative Native Ferns for Your Garden

While you’re supporting Maui fern conservation efforts, consider these more readily available native Hawaiian ferns for your landscape:

  • Hawaiian tree fern (Cibotium species)
  • Sword fern (Nephrolepis species)
  • Other Microlepia species that are less threatened

These alternatives can help you create a beautiful native Hawaiian garden while reducing pressure on rare species like the Maui fern.

The Bigger Picture

The story of the Maui fern is really the story of Hawaii’s native ecosystem—beautiful, unique, and fragile. By learning about and protecting species like this one, we’re not just saving individual plants; we’re preserving the complex web of relationships that make Hawaiian forests so special.

Every time we choose native plants for our gardens, support conservation efforts, or simply learn about species like the Maui fern, we’re contributing to a future where Hawaii’s natural treasures can thrive. And that’s something worth growing toward.

Maui Fern

Classification

Group

Fern

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Pteridophyta - Ferns

Subdivision
Class

Filicopsida

Subclass
Order

Polypodiales

Family

Dennstaedtiaceae Lotsy - Bracken Fern family

Genus

Microlepia C. Presl - palapalai

Species

Microlepia mauiensis W.H. Wagner - Maui fern

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