North America Native Plant

Decaneuropsis

Botanical name: Decaneuropsis

USDA symbol: DECAN2

Life cycle: perennial

Habit: shrub

Native status: Native to Pacific Basin excluding Hawaii  

Decaneuropsis: A Mysterious Pacific Shrub Worth Knowing About If you’ve stumbled across the name Decaneuropsis in your plant research, you’ve discovered one of the more elusive members of the plant kingdom. This perennial shrub represents the fascinating diversity of native plants found in remote Pacific locations, though it’s certainly not ...

Decaneuropsis: A Mysterious Pacific Shrub Worth Knowing About

If you’ve stumbled across the name Decaneuropsis in your plant research, you’ve discovered one of the more elusive members of the plant kingdom. This perennial shrub represents the fascinating diversity of native plants found in remote Pacific locations, though it’s certainly not one you’ll find at your local garden center anytime soon.

What Exactly Is Decaneuropsis?

Decaneuropsis is a perennial shrub that follows the typical growth pattern of many Pacific island natives. As a multi-stemmed woody plant, it usually stays under 13 to 16 feet in height, though like many shrubs, it can occasionally surprise you by growing taller or developing a single stem under the right environmental conditions.

What makes this plant particularly intriguing is its extremely limited distribution. Unlike many native plants that span multiple states or regions, Decaneuropsis calls only one place home.

Where Does Decaneuropsis Grow?

This shrub is native to the Pacific Basin (excluding Hawaii) and grows naturally only in Palau. Yes, that’s right – this entire genus is found in just one small island nation in the western Pacific Ocean. Talk about being picky about your neighborhood!

Should You Try to Grow Decaneuropsis?

Here’s where things get a bit complicated for the average gardener. While Decaneuropsis might sound like an interesting addition to your landscape, there are several practical considerations:

  • Extremely limited availability – you won’t find this at nurseries
  • Unknown growing requirements outside its native habitat
  • Unclear hardiness zones for continental climates
  • Limited research on cultivation needs

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

Unfortunately, much about Decaneuropsis remains a mystery to the gardening world. We don’t have information about its preferred growing conditions, water needs, soil requirements, or even what USDA hardiness zones it might tolerate. Without these crucial details, successfully growing this plant would be quite the gardening adventure – and not necessarily a successful one.

Better Alternatives for Your Garden

If you’re drawn to the idea of growing Pacific island natives or interesting shrubs, consider looking into native alternatives that are better suited to cultivation and available from reputable sources. Your local native plant society or extension office can point you toward shrubs native to your specific region that will thrive in your garden and support local wildlife.

The Takeaway

While Decaneuropsis represents the incredible diversity of plant life in remote Pacific locations, it’s more of a botanical curiosity than a practical garden choice. Sometimes the most interesting plants are the ones we admire from afar, appreciating their role in their native ecosystems while choosing more suitable options for our own gardens.

If you’re passionate about rare Pacific plants, consider supporting conservation efforts in Palau and other Pacific islands instead – that’s probably the best way to help ensure plants like Decaneuropsis continue to thrive where they belong.

Decaneuropsis

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

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Decaneuropsis H. Rob. & Skvarla

Species

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