North America Native Plant

Hobdy’s Naupaka

Botanical name: Scaevola hobdyi

USDA symbol: SCHO10

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Hobdy’s Naupaka: A Hawaiian Native on the Brink of Disappearance If you’ve stumbled across the name Hobdy’s naupaka (Scaevola hobdyi) while researching native Hawaiian plants for your garden, you’ve discovered one of Hawaii’s most elusive botanical treasures. But here’s the thing – this isn’t a plant you can simply order ...

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 ⚘

Hobdy’s Naupaka: A Hawaiian Native on the Brink of Disappearance

If you’ve stumbled across the name Hobdy’s naupaka (Scaevola hobdyi) while researching native Hawaiian plants for your garden, you’ve discovered one of Hawaii’s most elusive botanical treasures. But here’s the thing – this isn’t a plant you can simply order online or find at your local nursery, and there’s a heartbreaking reason why.

What Makes Hobdy’s Naupaka Special?

Hobdy’s naupaka belongs to the fascinating naupaka family, those distinctive Hawaiian shrubs known for their unique half-flowers that look like they’re missing their other half. This perennial shrub is (or was) endemic to Hawaii, meaning it naturally occurred nowhere else on Earth. Like other naupaka species, it likely grew as a multi-stemmed woody plant, typically reaching heights under 13-16 feet.

The Geographic Reality

Scaevola hobdyi was native exclusively to the Hawaiian Islands, making it part of Hawaii’s incredibly unique and fragile ecosystem.

A Conservation Crisis

Here’s where the story takes a somber turn. Hobdy’s naupaka currently holds a Global Conservation Status of SH, which stands for Possibly Extirpated. In plain English? This means the species is known only from historical records, and botanists haven’t been able to find any living specimens in recent surveys. There’s still hope for rediscovery, but it’s hanging by a thread.

This conservation status means that Hobdy’s naupaka is essentially unavailable for home cultivation, and even if specimens were found, they would need to be protected for conservation efforts rather than distributed for gardening purposes.

Why You Can’t Grow Hobdy’s Naupaka (And What to Do Instead)

Given its possibly extinct status, responsible gardeners should not attempt to acquire or grow Hobdy’s naupaka. Even if plant material somehow became available, it would be crucial that it comes from legitimate conservation programs with proper permits and documentation.

But don’t despair! Hawaii has several other beautiful naupaka species that you can grow to celebrate this unique plant family:

  • Beach naupaka (Scaevola taccada) – Perfect for coastal gardens
  • Mountain naupaka (Scaevola gaudichaudiana) – Ideal for higher elevation plantings
  • Dwarf naupaka (Scaevola coriacea) – Great for smaller spaces

Supporting Hawaiian Plant Conservation

While you can’t grow Hobdy’s naupaka in your garden, you can still make a difference. Consider supporting Hawaiian native plant conservation organizations, participating in habitat restoration projects, or simply choosing to plant other native Hawaiian species that are readily available and don’t face extinction pressures.

The story of Hobdy’s naupaka serves as a powerful reminder of how precious and fragile our native plant heritage can be. By choosing to garden with readily available native plants, we can create beautiful landscapes while supporting conservation efforts and helping prevent other species from following the same precarious path.

The Bigger Picture

Every extinct or near-extinct plant species represents a loss of genetic diversity, ecological relationships, and natural heritage that took millions of years to develop. While we may not be able to bring Hobdy’s naupaka back to our gardens, we can honor its memory by being thoughtful stewards of the native plants that are still thriving around us.

Hobdy’s Naupaka

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

Campanulales

Family

Goodeniaceae R. Br. - Goodenia family

Genus

Scaevola L. - naupaka

Species

Scaevola hobdyi W.L. Wagner - Hobdy's naupaka

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