North America Native Plant

Tremella Nephromatis

Botanical name: Tremella nephromatis

USDA symbol: TRNE9

Habit: lichen

Native status: Native to North America  

Tremella nephromatis: The Mysterious Jelly Fungus in Your Backyard Have you ever stumbled across something that looks like nature’s own gelatin dessert while walking through the woods? You might have encountered Tremella nephromatis, a fascinating fungal species that’s more common than you’d think. This curious organism isn’t a plant at ...

Tremella nephromatis: The Mysterious Jelly Fungus in Your Backyard

Have you ever stumbled across something that looks like nature’s own gelatin dessert while walking through the woods? You might have encountered Tremella nephromatis, a fascinating fungal species that’s more common than you’d think. This curious organism isn’t a plant at all, but rather a jelly fungus that plays an important role in North American ecosystems.

What Exactly Is Tremella nephromatis?

Tremella nephromatis is a species of jelly fungus native to North America. Unlike the plants we typically think about for our gardens, this fungus belongs to an entirely different kingdom of life. It’s a parasitic fungus that makes its living by growing on other fungi, particularly those that decompose dead wood.

When conditions are just right – usually after rain or in high humidity – these fungi swell up and become gelatinous and translucent, giving them their distinctive jelly appearance. When dry, they shrivel up and become almost unrecognizable, which is why many people never notice them.

Geographic Distribution

This native North American fungus can be found across various regions of the continent, though specific distribution data for this particular species is limited. Like many fungi, it tends to be overlooked in biological surveys, making its exact range somewhat mysterious.

Is It Beneficial to Your Garden?

While you can’t plant Tremella nephromatis like you would a flower or shrub, its presence in your landscape can actually be a good sign. Here’s why this fungus might be beneficial:

  • It indicates a healthy ecosystem with proper moisture levels and organic matter
  • As a decomposer, it helps break down dead wood and recycle nutrients
  • Its parasitic relationship with other fungi helps maintain fungal community balance
  • It contributes to the complex web of soil organisms that support plant health

How to Identify Tremella nephromatis

Spotting this elusive fungus requires knowing when and where to look:

  • Timing: Most visible during wet weather or high humidity periods
  • Appearance: Gelatinous, translucent to semi-transparent when moist
  • Texture: Jelly-like and somewhat rubbery to the touch
  • Location: Found on decaying wood, logs, and dead branches
  • Size: Variable, but typically forms small to medium-sized irregular masses

Remember that when dry, these fungi shrivel up considerably and may look like small, dark, crusty patches on wood – quite different from their plump, jelly-like wet-weather appearance.

Creating Fungus-Friendly Conditions

While you can’t cultivate Tremella nephromatis directly, you can create conditions that welcome beneficial fungi like this one:

  • Leave some dead wood and fallen branches in natural areas of your property
  • Maintain areas with consistent moisture and shade
  • Avoid using fungicides in areas where you want to encourage natural fungal diversity
  • Create brush piles or log piles in out-of-the-way spots

The Bigger Picture

Tremella nephromatis represents just one small piece of the incredibly diverse and largely hidden world of fungi that surrounds us. These organisms are essential partners in healthy ecosystems, working behind the scenes to decompose organic matter, cycle nutrients, and support the plants we love.

Next time you’re walking through a wooded area after a rain, take a moment to look closely at fallen logs and dead branches. You might just spot one of these gelatinous gems doing its quiet work in the forest. While it won’t add colorful blooms to your flower bed, appreciating fungi like Tremella nephromatis can deepen your understanding of the complex, interconnected web of life that makes our gardens – and our world – possible.

Tremella Nephromatis

Classification

Group

Lichen

Kingdom

Fungi - Fungi

Subkingdom
Superdivision
Division

Basidiomycota - Basidiosporic fungi

Subdivision
Class

Basidiomycetes

Subclass

Phragmobasidiomycetidae

Order

Tremellales

Family

Tremellaceae Fr.

Genus

Tremella Pers.

Species

Tremella nephromatis Diederich

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