North America Native Plant

Western Neofuscelia Lichen

Botanical name: Neofuscelia occidentalis

USDA symbol: NEOC2

Habit: lichen

Native status: Native to North America  

Synonyms: Parmelia occidentalis Essl. (PAOC3)   

Western Neofuscelia Lichen: A Crusty Character Worth Knowing If you’ve ever noticed grayish, crusty patches decorating rocks in your garden or local hiking trails, you might have encountered the western neofuscelia lichen (Neofuscelia occidentalis). This fascinating organism isn’t actually a plant at all – it’s a lichen, which makes it ...

Western Neofuscelia Lichen: A Crusty Character Worth Knowing

If you’ve ever noticed grayish, crusty patches decorating rocks in your garden or local hiking trails, you might have encountered the western neofuscelia lichen (Neofuscelia occidentalis). This fascinating organism isn’t actually a plant at all – it’s a lichen, which makes it a unique partnership between fungi and algae living together in perfect harmony.

What Exactly Is Western Neofuscelia Lichen?

Don’t let the scientific name Neofuscelia occidentalis intimidate you – this lichen is actually quite approachable once you know what to look for. Unlike the plants we typically think about growing in our gardens, lichens are composite organisms. Think of them as nature’s ultimate roommates: a fungus provides the structure and protection, while algae handle the food production through photosynthesis.

Western neofuscelia lichen was previously known by the synonym Parmelia occidentalis, so you might see it referenced under that name in older field guides or scientific literature.

Where You’ll Find This Rocky Resident

As a native species to North America, western neofuscelia lichen has been quietly decorating our landscapes for centuries. You’ll typically spot this lichen in western regions of the continent, where it has adapted to thrive in arid and semi-arid conditions.

Spotting Western Neofuscelia in Your Landscape

Identifying western neofuscelia lichen is easier than you might think. Here’s what to look for:

  • Crusty, flat patches that seem painted onto rock surfaces
  • Grayish to brownish coloration that may appear somewhat mottled
  • Tight adherence to the rock substrate – it won’t peel off easily
  • Preference for exposed rock faces and boulders

Is Western Neofuscelia Beneficial for Your Garden?

While you can’t exactly plant western neofuscelia lichen like you would a shrub or perennial, its presence in your landscape is actually a wonderful sign. Lichens are excellent indicators of air quality – they’re sensitive to pollution and typically thrive in areas with clean air. Spotting them in your garden suggests you’re maintaining a healthy environment.

Here are some benefits of having western neofuscelia lichen around:

  • Natural rock garden aesthetics without any maintenance
  • Indication of good air quality in your area
  • Contribution to the local ecosystem’s biodiversity
  • Educational opportunities for curious family members and visitors

Creating Lichen-Friendly Conditions

Since you can’t actively grow western neofuscelia lichen, the best approach is creating conditions where it might naturally establish itself. If you’re designing a rock garden or xeriscaped area, consider these lichen-friendly features:

  • Incorporate natural stone and boulder features
  • Avoid using chemical treatments near rock surfaces
  • Maintain good air circulation in your landscape
  • Be patient – lichen establishment is a slow, natural process

The Hands-Off Approach

One of the most refreshing things about western neofuscelia lichen is that it requires absolutely no care from you. There’s no watering schedule, no fertilizing, no pruning – just pure, low-maintenance natural beauty. If it appears in your landscape, simply appreciate it as a sign of a healthy ecosystem.

Remember, lichens grow incredibly slowly, sometimes taking decades to establish significant coverage. If you’re lucky enough to have western neofuscelia lichen in your landscape, treat it gently and avoid disturbing the rock surfaces where it grows.

A Living Partnership in Your Backyard

Western neofuscelia lichen represents one of nature’s most successful collaborations, quietly adding character to rocky landscapes across western North America. While you might not be able to add it to your shopping list at the garden center, you can certainly appreciate its subtle beauty and the healthy environment it indicates when it chooses to call your landscape home.

Western Neofuscelia Lichen

Classification

Group

Lichen

Kingdom

Fungi - Fungi

Subkingdom
Superdivision
Division

Ascomycota - Sac fungi

Subdivision
Class

Ascomycetes

Subclass
Order

Lecanorales

Family

Parmeliaceae F. Berchtold & J. Presl

Genus

Neofuscelia Essl. - neofuscelia lichen

Species

Neofuscelia occidentalis (Essl.) Essl. - western neofuscelia lichen

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