North America Native Plant

Moldy Bread And Cheese

Botanical name: Paullinia fuscescens

USDA symbol: PAFU2

Life cycle: perennial

Habit: vine

Native status: Native to the U.S. Virgin Islands  

Moldy Bread and Cheese Plant: A Mysterious Caribbean Climber With a common name that might make you think twice about lunch, the moldy bread and cheese plant (Paullinia fuscescens) is one of the Caribbean’s more enigmatic native species. This twining climber calls the U.S. Virgin Islands home, though you’re unlikely ...

Moldy Bread and Cheese Plant: A Mysterious Caribbean Climber

With a common name that might make you think twice about lunch, the moldy bread and cheese plant (Paullinia fuscescens) is one of the Caribbean’s more enigmatic native species. This twining climber calls the U.S. Virgin Islands home, though you’re unlikely to find it at your local garden center—and there’s good reason for that.

What Is the Moldy Bread and Cheese Plant?

Paullinia fuscescens is a perennial climbing plant with relatively long stems that can develop woody characteristics over time. As a member of the Paullinia genus, it’s related to other tropical vines, though this particular species remains one of the lesser-known members of the family. The plant gets its rather unappetizing common name from characteristics that aren’t well-documented in available literature.

Where Does It Grow Naturally?

This native plant is found exclusively in the U.S. Virgin Islands, making it a true Caribbean endemic. Its natural habitat and specific growing conditions in the wild remain poorly documented, which tells us something important about this plant’s rarity or at least its obscurity in horticultural circles.

Should You Grow Moldy Bread and Cheese Plant?

Here’s where things get complicated. While supporting native plants is always admirable, Paullinia fuscescens presents several challenges for the home gardener:

  • Extremely limited availability in the nursery trade
  • Unknown growing requirements and care needs
  • Potentially rare status (though not officially documented)
  • Lack of established cultivation practices

Growing Conditions and Care

Unfortunately, specific growing conditions for Paullinia fuscescens are not well-documented. Given its Virgin Islands origin, we can make some educated guesses:

  • Likely requires warm, tropical conditions year-round
  • Probably needs high humidity
  • As a climbing plant, would need support structures
  • USDA hardiness zones unknown, but likely limited to zones 10-11 or greenhouse cultivation

A Word of Caution

The lack of available information about this plant raises some red flags for potential growers. Without knowing its rarity status, invasive potential, or specific needs, attempting to cultivate Paullinia fuscescens could be problematic. If you’re interested in this plant, it would be essential to source it only through reputable native plant societies or conservation organizations that can ensure responsible propagation.

Native Alternatives for Tropical Gardeners

If you’re drawn to native Caribbean climbers, consider researching other well-documented native vines from the region that have established cultivation practices and known growing requirements. Working with local native plant societies in tropical areas can help you find suitable alternatives that will thrive in your garden while supporting local ecosystems.

The Bottom Line

While the moldy bread and cheese plant certainly wins points for having one of the most memorable common names in the plant world, it remains too much of a mystery for most gardeners to attempt growing. Until more is known about its cultivation requirements, rarity status, and ecological impact, this Caribbean native is best left to botanical researchers and specialized conservation efforts.

Sometimes the most responsible thing a gardener can do is admire a plant from afar and choose better-understood native species that we know how to grow successfully.

Moldy Bread And Cheese

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

Sapindales

Family

Sapindaceae Juss. - Soapberry family

Genus

Paullinia L. - bread and cheese

Species

Paullinia fuscescens Kunth - moldy bread and cheese

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