North America Native Plant

Neofuscelia Lichen

Botanical name: Neofuscelia brunella

USDA symbol: NEBR3

Habit: lichen

Native status: Native to North America  

Synonyms: Parmelia brunella Essl. (PABR8)   

Neofuscelia Lichen: A Rocky Garden Visitor You Can’t Plant But Might Want to Know Ever noticed those crusty, grayish patches clinging to rocks in your garden or local hiking trails? You might be looking at neofuscelia lichen (Neofuscelia brunella), a fascinating organism that’s neither plant nor animal, but something wonderfully ...

Neofuscelia Lichen: A Rocky Garden Visitor You Can’t Plant But Might Want to Know

Ever noticed those crusty, grayish patches clinging to rocks in your garden or local hiking trails? You might be looking at neofuscelia lichen (Neofuscelia brunella), a fascinating organism that’s neither plant nor animal, but something wonderfully in-between. While you can’t exactly pop this guy into your shopping cart at the garden center, understanding what it is and why it shows up can help you appreciate the hidden ecosystem thriving right under your nose.

What Exactly Is Neofuscelia Lichen?

Here’s where things get delightfully weird: neofuscelia lichen isn’t actually a single organism. It’s a partnership between a fungus and an algae (or sometimes cyanobacteria) living together in what scientists call a symbiotic relationship. Think of it as nature’s ultimate roommate situation – the fungus provides shelter and absorbs water, while the algae whips up food through photosynthesis. Together, they create those crusty, often overlooked patches you see on rocks.

This particular lichen is native to North America and was previously known by the synonym Parmelia brunella. It’s part of a larger family of rock-dwelling lichens that have mastered the art of surviving in some pretty harsh conditions.

Where You’ll Find This Rocky Resident

Neofuscelia lichen calls western North America home, particularly favoring the arid and semi-arid regions where rocks bake in the sun and water is scarce. You’ll typically spot it forming grayish to brownish crusty patches on rock surfaces, especially in areas with clean air – lichens are notoriously picky about air quality and won’t tolerate pollution well.

Is It Beneficial to Your Garden?

While you can’t plant neofuscelia lichen (trust me, it doesn’t work that way), having it show up naturally in your garden is actually a pretty good sign. Here’s why you might want to celebrate these crusty characters:

  • They’re excellent air quality indicators – their presence suggests your garden has clean, healthy air
  • They help prevent soil erosion by stabilizing rock surfaces
  • They contribute to the slow breakdown of rocks, eventually creating soil over geological time
  • They add subtle texture and natural character to rock gardens and stone features

However, don’t expect them to attract pollinators or provide the typical wildlife benefits of flowering plants – lichens don’t produce flowers, fruits, or nectar.

How to Identify Neofuscelia Lichen

Spotting neofuscelia lichen is all about knowing where to look and what to look for:

  • Look for crusty, patch-like growth on rock surfaces
  • Color ranges from grayish to brownish, often with a somewhat mottled appearance
  • Forms tight, adherent patches that seem almost painted onto the rock
  • Typically found in drier climates and exposed locations
  • Prefers hard rock surfaces over soil or wood

Can You Encourage Lichens in Your Garden?

While you can’t plant lichens like traditional garden plants, you can create conditions that might encourage them to show up naturally:

  • Include natural stone features, rock gardens, or stone walls
  • Maintain good air quality around your property
  • Avoid using harsh chemicals or pressure washing stone surfaces
  • Be patient – lichens grow incredibly slowly, sometimes just millimeters per year

The Bottom Line

Neofuscelia lichen might not be the showstopper centerpiece of your garden design, but it represents something pretty special – a successful partnership that’s been quietly colonizing rocks for millions of years. If you’re lucky enough to have these crusty characters appear on your stone features, consider it nature’s stamp of approval for your garden’s air quality. And remember, sometimes the most interesting garden residents are the ones that choose you, rather than the ones you choose.

So next time you’re admiring your rock garden or stone pathway, take a moment to look closer. You might just discover you’re hosting some of nature’s most resilient and fascinating partnerships, one crusty patch at a time.

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 brunella (Essl.) Essl. - 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