North America Native Plant

Pertusaria Flavocorallina

Botanical name: Pertusaria flavocorallina

USDA symbol: PEFL20

Habit: lichen

Native status: Native to North America  

Pertusaria flavocorallina: The Coral-Colored Lichen Adding Natural Beauty to Your Garden If you’ve ever noticed bright yellow-orange or coral-colored crusty patches decorating the bark of your trees, you might have encountered Pertusaria flavocorallina! This fascinating lichen brings a splash of unexpected color to gardens across North America, and understanding what ...

Pertusaria flavocorallina: The Coral-Colored Lichen Adding Natural Beauty to Your Garden

If you’ve ever noticed bright yellow-orange or coral-colored crusty patches decorating the bark of your trees, you might have encountered Pertusaria flavocorallina! This fascinating lichen brings a splash of unexpected color to gardens across North America, and understanding what it is can help you appreciate the hidden wonders already living in your landscape.

What Exactly Is Pertusaria flavocorallina?

Pertusaria flavocorallina is a crustose lichen native to North America. Now, before your eyes glaze over at the word lichen, let’s break this down in simple terms. A lichen isn’t actually a plant at all – it’s a remarkable partnership between a fungus and algae (or sometimes cyanobacteria) living together in perfect harmony. Think of it as nature’s ultimate roommate situation that actually works!

This particular lichen species is native to North America and can be found naturally occurring across eastern regions of the continent, thriving in temperate deciduous and mixed forest environments.

How to Identify This Colorful Garden Resident

Spotting Pertusaria flavocorallina is easier than pronouncing its name! Here’s what to look for:

  • Bright yellow-orange to coral-colored crusty patches on tree bark or rocks
  • Powdery, granular texture with distinctive soredia (tiny reproductive structures that look like colored dust)
  • Typically found on the bark of deciduous trees like oaks, maples, and hickories
  • Forms irregular, spreading patches that can be several inches across

Is This Lichen Beneficial for Your Garden?

Absolutely! Having Pertusaria flavocorallina in your garden is actually a wonderful sign. Here’s why you should celebrate its presence:

  • Air quality indicator: Lichens are incredibly sensitive to air pollution, so their presence indicates clean, healthy air in your garden
  • Natural beauty: These colorful patches add unique visual interest and natural character to mature trees and stone features
  • Ecosystem health: Lichens contribute to biodiversity and provide habitat for tiny invertebrates
  • Low maintenance: They require absolutely zero care from you – nature’s perfect hands-off garden feature!

Can You Cultivate This Lichen?

Here’s where things get interesting – you can’t actually plant or grow Pertusaria flavocorallina like a traditional garden plant. Lichens appear naturally when conditions are just right, which includes clean air, appropriate humidity levels, and suitable surfaces like tree bark or rocks.

Instead of trying to cultivate it, focus on creating an environment where it can thrive naturally:

  • Maintain mature trees with textured bark in your landscape
  • Avoid using harsh chemicals or pesticides that could harm air quality
  • Keep natural stone features or rock gardens that can serve as additional substrates
  • Be patient – lichens grow very slowly, sometimes taking years to establish visible colonies

The Perfect Garden Companion

Pertusaria flavocorallina thrives in USDA hardiness zones 4-8, making it a resilient presence in many North American gardens. It’s particularly well-suited for:

  • Established woodland gardens with mature trees
  • Natural landscaping designs that emphasize native species
  • Rock gardens with natural stone features
  • Areas where you want to showcase your garden’s healthy ecosystem

Embrace Nature’s Artistry

Rather than seeing Pertusaria flavocorallina as something to manage or control, consider it nature’s way of painting your garden with living art. These resilient lichens have been decorating North American forests for thousands of years, and their presence in your garden connects your space to the broader natural world.

Next time you’re walking through your garden, take a moment to appreciate these small but mighty organisms. They’re not just adding color to your trees – they’re telling you that your garden is healthy, your air is clean, and your landscape is supporting the intricate web of life that makes gardening so rewarding.

Pertusaria Flavocorallina

Classification

Group

Lichen

Kingdom

Fungi - Fungi

Subkingdom
Superdivision
Division

Ascomycota - Sac fungi

Subdivision
Class

Ascomycetes

Subclass
Order

Lecanorales

Family

Pertusariaceae Körb.

Genus

Pertusaria DC. - pore lichen

Species

Pertusaria flavocorallina Coppins & Muhr

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