North America Native Plant

Tapellaria Lichen

Botanical name: Tapellaria bilimbioides

USDA symbol: TABI2

Habit: lichen

Native status: Native to North America  

Tapellaria Lichen: A Mysterious North American Native Worth Knowing If you’ve ever wondered about those crusty, colorful patches growing on tree bark or rocks in your garden, you might have encountered a lichen like Tapellaria bilimbioides, commonly known as tapellaria lichen. This fascinating organism represents one of nature’s most remarkable ...

Tapellaria Lichen: A Mysterious North American Native Worth Knowing

If you’ve ever wondered about those crusty, colorful patches growing on tree bark or rocks in your garden, you might have encountered a lichen like Tapellaria bilimbioides, commonly known as tapellaria lichen. This fascinating organism represents one of nature’s most remarkable partnerships, and while you can’t exactly plant it in your garden, understanding what it is can help you appreciate the complex ecosystem right in your backyard.

What Exactly Is Tapellaria Lichen?

Here’s where things get interesting: tapellaria lichen isn’t actually a plant at all! It’s a composite organism made up of a fungus and an alga (or sometimes a cyanobacterium) living together in perfect harmony. Think of it as nature’s ultimate roommate situation – the fungus provides structure and protection, while the alga produces food through photosynthesis. Pretty clever, right?

Tapellaria bilimbioides is native to North America, making it a legitimate member of our local ecosystem. While specific details about its exact distribution remain somewhat mysterious in the scientific literature, this lichen has been quietly doing its thing across various North American habitats for countless years.

Is Tapellaria Lichen Beneficial for Your Garden?

Absolutely! Even though you won’t find tapellaria lichen at your local nursery, having it show up naturally in your garden is actually a good sign. Here’s why you should be happy to see it:

  • Air quality indicator: Lichens are incredibly sensitive to air pollution, so their presence suggests your garden enjoys relatively clean air
  • Ecosystem support: They provide food and nesting materials for various small creatures, including insects and birds
  • Soil health: When lichens eventually break down, they contribute organic matter to the soil
  • Natural beauty: They add unique textures and subtle colors to bark and stone surfaces

How to Identify Tapellaria Lichen

Spotting tapellaria lichen requires a bit of detective work, as specific identification details for this particular species are limited in readily available sources. However, lichens in the Tapellaria genus typically share certain characteristics:

  • Look for crusty or powdery growth on tree bark, rocks, or other hard surfaces
  • Colors can range from grayish to greenish, often appearing dusty or granular
  • They’re usually found in areas with adequate moisture and indirect light
  • Unlike moss, they won’t feel soft or spongy to the touch

Creating a Lichen-Friendly Garden

While you can’t plant lichens like traditional garden plants, you can certainly encourage them to make themselves at home:

  • Avoid chemical treatments: Skip the fungicides and harsh cleaning products on trees and garden structures
  • Maintain mature trees: Older bark provides ideal surfaces for lichen colonization
  • Embrace natural materials: Stone walls, wooden fences, and other natural surfaces provide potential homes
  • Keep things chemical-free: Lichens are sensitive to pollutants, so organic gardening practices help

The Bottom Line

Tapellaria lichen might not be the showstopper centerpiece of your garden design, but it’s definitely worth appreciating as part of your local ecosystem. If you spot what you think might be this native lichen growing naturally in your space, consider yourself lucky – you’re witnessing one of nature’s most successful partnerships in action.

Rather than trying to remove or control lichens, embrace them as indicators of a healthy, balanced garden environment. They’re quiet contributors to biodiversity, and their presence suggests you’re creating a space where native organisms can thrive naturally.

Tapellaria Lichen

Classification

Group

Lichen

Kingdom

Fungi - Fungi

Subkingdom
Superdivision
Division

Ascomycota - Sac fungi

Subdivision
Class

Ascomycetes

Subclass
Order

Lecanorales

Family

Ectolechiaceae Zahlbr.

Genus

Tapellaria Müll. Arg. - tapellaria lichen

Species

Tapellaria bilimbioides R. Sant. - tapellaria lichen

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