North America Native Plant

Coralfruit

Botanical name: Doyerea emetocathartica

USDA symbol: DOEM

Life cycle: perennial

Habit: vine

Native status: Native to Puerto Rico âš˜ Native to the U.S. Virgin Islands  

Synonyms: Corallocarpus emetocatharticus (Gros.) Cogn. (COEM)   

Coralfruit (Doyerea emetocathartica): A Rare Caribbean Climbing Vine Worth Knowing About If you’re a plant enthusiast who loves discovering unusual native species, you might have stumbled across the name coralfruit. This intriguing climbing vine, scientifically known as Doyerea emetocathartica, is one of those plants that sparks curiosity but leaves you ...

Coralfruit (Doyerea emetocathartica): A Rare Caribbean Climbing Vine Worth Knowing About

If you’re a plant enthusiast who loves discovering unusual native species, you might have stumbled across the name coralfruit. This intriguing climbing vine, scientifically known as Doyerea emetocathartica, is one of those plants that sparks curiosity but leaves you scratching your head when it comes to actually growing it in your garden.

What Is Coralfruit?

Coralfruit is a perennial climbing vine that belongs to the cucumber and gourd family (Cucurbitaceae). As a twining plant, it uses its relatively long stems to climb and scramble over other vegetation, creating a natural tapestry in its native habitat. These stems can be either woody or herbaceous, giving the plant flexibility in how it grows and adapts to its environment.

You might also see this plant referenced by its botanical synonym, Corallocarpus emetocatharticus, in older botanical texts or databases.

Where Does Coralfruit Call Home?

This rare vine is native exclusively to the Caribbean region, specifically Puerto Rico and the U.S. Virgin Islands. It’s a true island endemic, meaning it evolved in these specific locations and doesn’t naturally occur anywhere else in the world.

The Challenge of Growing Coralfruit

Here’s where things get interesting (and a bit frustrating): coralfruit is one of those plants that’s more of a botanical curiosity than a garden staple. Very little information exists about its specific growing requirements, care needs, or even its appearance in detail. This scarcity of information likely reflects its rarity in both the wild and cultivation.

Should You Try to Grow It?

If you live in Puerto Rico or the U.S. Virgin Islands and are passionate about native plant conservation, coralfruit could be an intriguing addition to your collection—but proceed with caution. Here’s what to consider:

  • Source responsibly: If this plant is indeed rare (which the lack of information suggests), only obtain seeds or plants from reputable native plant societies or botanical institutions
  • Expect experimentation: Without established growing guidelines, you’ll be learning through trial and observation
  • Consider alternatives: There are many other native Caribbean vines with better-documented growing requirements that might serve your landscape needs

What We Can Guess About Growing Conditions

While specific care information isn’t readily available, we can make some educated guesses based on its native habitat and plant family:

  • Likely thrives in warm, tropical conditions year-round
  • Probably needs something to climb on, like a trellis, fence, or other plants
  • As a member of the cucumber family, it might prefer well-draining soil with regular moisture
  • Could benefit from partial shade to full sun, typical of many tropical vines

The Bottom Line

Coralfruit represents one of those fascinating plants that reminds us how much we still don’t know about our native flora. While it’s not a plant you’ll find at your local nursery (or probably any nursery), it serves as an important reminder of the incredible diversity found in Caribbean ecosystems.

If you’re interested in supporting native plants in the Caribbean region, consider connecting with local botanical gardens, native plant societies, or conservation organizations. They might have more information about this elusive vine and other rare native species that could benefit from cultivation and conservation efforts.

Sometimes the most valuable plants aren’t the ones we can easily grow, but the ones that inspire us to learn more about the natural world around us.

Coralfruit

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Violales

Family

Cucurbitaceae Juss. - Cucumber family

Genus

Doyerea Gros. - doyeria

Species

Doyerea emetocathartica Gros. - coralfruit

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