North America Native Plant

Gymnosporia

Botanical name: Gymnosporia

USDA symbol: GYMNO16

Life cycle: perennial

Habit: shrub

Native status: Native to Pacific Basin excluding Hawaii  

Gymnosporia: A Mysterious Pacific Shrub Worth Knowing About If you’ve stumbled across the name gymnosporia in your plant research, you’re likely wondering what exactly this mysterious shrub is all about. Well, you’re not alone – this is one of those plants that keeps a pretty low profile in the gardening ...

Gymnosporia: A Mysterious Pacific Shrub Worth Knowing About

If you’ve stumbled across the name gymnosporia in your plant research, you’re likely wondering what exactly this mysterious shrub is all about. Well, you’re not alone – this is one of those plants that keeps a pretty low profile in the gardening world!

What Is Gymnosporia?

Gymnosporia is a perennial shrub that’s native to the Pacific Basin, specifically found in Palau. Like most shrubs, it’s a multi-stemmed woody plant that typically stays under 13-16 feet tall, though it can sometimes grow taller or even develop a single stem depending on its growing conditions.

Where Does It Grow?

This plant calls Palau home, making it quite the exotic specimen for most gardeners. As a Pacific Basin native (excluding Hawaii), Gymnosporia has adapted to life in this unique island environment.

Should You Grow Gymnosporia?

Here’s where things get a bit tricky – there’s surprisingly little information available about this particular plant when it comes to home gardening. We don’t know much about its growing requirements, how it looks throughout the seasons, or what kind of care it needs.

What we do know is that it’s a legitimate native species in its home range of Palau, which means it plays an important ecological role there. However, for gardeners outside of this region, there are several unknowns to consider:

  • Growing conditions and care requirements are not well documented
  • Invasive potential in other regions is unknown
  • Availability from nurseries is likely extremely limited
  • Climate adaptability outside its native range is uncertain

The Bottom Line for Gardeners

While Gymnosporia might sound intriguing, the lack of available information makes it a challenging choice for most home gardeners. If you’re interested in Pacific Basin plants, you might have better luck with more well-documented species that have established cultivation guidelines.

For gardeners in Palau or those with expertise in rare Pacific plants, Gymnosporia could be an interesting native species to explore – just be prepared for some trial and error since there aren’t established care guides readily available.

If you’re drawn to shrubs with similar characteristics, consider researching other native shrub species in your area that are better documented and more readily available. Your local native plant society or extension office can point you toward shrubs that will thrive in your specific climate and growing conditions.

The Mystery Continues

Sometimes in the plant world, we encounter species like Gymnosporia that remind us how much we still have to learn about the incredible diversity of plants on our planet. While this particular shrub might not be the easiest addition to your garden, it’s a fascinating example of the unique flora found in Pacific island ecosystems.

Gymnosporia

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Celastrales

Family

Celastraceae R. Br. - Bittersweet family

Genus

Gymnosporia (Wight & Arn.) Benth. & Hook. f. - gymnosporia

Species

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