North America Native Plant

Molokai Islandmint

Botanical name: Haplostachys bryanii

USDA symbol: HABR2

Life cycle: perennial

Habit: forb

Native status: Native to Hawaii  

Synonyms: Haplostachys bryanii Sherff var. microdonta (HABRM)  âš˜  Haplostachys bryanii Sherff var. robusta (HABRR)   

Molokai Islandmint: A Rare Hawaiian Treasure We May Have Lost Meet Molokai islandmint (Haplostachys bryanii), one of Hawaii’s most elusive native plants. This unassuming member of the mint family might not look like much, but it holds a special place in Hawaiian botanical history – and unfortunately, it’s a place ...

Rare plant alert!

Region: Conservation status by state

Status: SH: Status is uncertain but is somewhere between the following rankings: Possibly Extinct: Known only from historical occurrences. Still some hope of rediscovery ⚘

Molokai Islandmint: A Rare Hawaiian Treasure We May Have Lost

Meet Molokai islandmint (Haplostachys bryanii), one of Hawaii’s most elusive native plants. This unassuming member of the mint family might not look like much, but it holds a special place in Hawaiian botanical history – and unfortunately, it’s a place we’re desperately trying to preserve.

What Makes This Plant Special?

Molokai islandmint is what botanists call a forb – essentially a soft-stemmed perennial herb without woody growth. As part of the mint family, it likely once graced the Hawaiian landscape with its subtle beauty, though it was never the showiest plant in the garden.

This little plant is endemic to Hawaii, meaning it evolved here and exists nowhere else on Earth. More specifically, it’s native to the island of Molokai, which gives it both its common name and its unique character.

The Conservation Reality Check

Here’s where things get serious: Molokai islandmint has a Global Conservation Status of SH, which stands for Possibly Extirpated. In plain English? This plant is known only from historical records, and scientists aren’t sure if it still exists in the wild. There’s still hope for rediscovery, but that hope is growing thinner with each passing year.

Should You Plant Molokai Islandmint?

The short answer is: probably not, and here’s why. With such a precarious conservation status, any remaining genetic material of this species is incredibly precious. Unless you’re working with a legitimate conservation program or botanical institution, it’s best to admire this plant from afar and support conservation efforts instead.

If you do have access to responsibly sourced material through official conservation channels, here’s what little we know about growing it:

  • It’s adapted to tropical Hawaiian conditions (USDA zones 10-12)
  • As a native Hawaiian plant, it likely prefers well-draining soils
  • Being a mint family member, it may attract native Hawaiian pollinators
  • Specific growing requirements remain largely unknown

Better Alternatives for Your Hawaiian Garden

Instead of trying to grow this rare species, consider these more readily available Hawaiian native mints and herbs:

  • Other Haplostachys species that are more stable
  • Native Hawaiian herbs that support local ecosystems
  • Well-established native plants that won’t put rare species at risk

How You Can Help

The best way to support Molokai islandmint isn’t by growing it – it’s by supporting Hawaiian plant conservation efforts. Consider:

  • Donating to Hawaiian botanical gardens and conservation programs
  • Volunteering for native plant restoration projects
  • Choosing other native Hawaiian plants for your garden
  • Spreading awareness about Hawaii’s endangered flora

Sometimes the most responsible thing we can do as gardeners is to step back and let the experts handle the rarest treasures. Molokai islandmint may be too precious for our home gardens, but that doesn’t make it any less worthy of our respect and protection.

Molokai Islandmint

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

Lamiales

Family

Lamiaceae Martinov - Mint family

Genus

Haplostachys (A. Gray) Hillebr. - haplostachys

Species

Haplostachys bryanii Sherff - Molokai islandmint

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