North America Native Plant

Neofuscelia Lichen

Botanical name: Neofuscelia subhosseana

USDA symbol: NESU

Habit: lichen

Native status: Native to North America  

Synonyms: Parmelia subhosseana Essl. (PASU20)   

Neofuscelia Lichen: The Quiet Garden Guest You Never Planted Have you ever noticed crusty, grayish patches growing on the bark of trees in your garden and wondered what they were? You might be looking at neofuscelia lichen (Neofuscelia subhosseana), a fascinating organism that’s neither plant nor animal, but something wonderfully ...

Neofuscelia Lichen: The Quiet Garden Guest You Never Planted

Have you ever noticed crusty, grayish patches growing on the bark of trees in your garden and wondered what they were? You might be looking at neofuscelia lichen (Neofuscelia subhosseana), a fascinating organism that’s neither plant nor animal, but something wonderfully in between.

What Exactly Is Neofuscelia Lichen?

Neofuscelia lichen is actually a partnership between a fungus and algae, working together in perfect harmony. This native North American species, also known by its scientific synonym Parmelia subhosseana, creates those distinctive crusty formations you see on tree bark and occasionally on rocks. Think of it as nature’s own collaborative art project!

Where You’ll Find This Natural Wonder

This lichen calls North America home, though its exact distribution patterns can vary based on local environmental conditions. You’re most likely to spot it in temperate regions where air quality is reasonably good.

Identifying Neofuscelia Lichen in Your Garden

Spotting neofuscelia lichen is easier than you might think once you know what to look for:

  • Crusty, patch-like growth that appears glued to tree bark
  • Grayish coloration that can vary from light gray to darker tones
  • Flat, spreading appearance rather than leafy or branched
  • Typically found on the bark of mature trees
  • May also appear on rocks or other stable surfaces

Is Neofuscelia Lichen Good for Your Garden?

Absolutely! While you can’t exactly plant this lichen like you would a flower, its presence in your garden is actually a wonderful sign. Here’s why you should celebrate finding it:

  • Air quality indicator: Lichens are sensitive to air pollution, so their presence suggests your garden enjoys relatively clean air
  • Ecosystem authenticity: Having native lichens adds to the natural character of your landscape
  • Minimal impact: They don’t harm trees or compete with your planted species
  • Educational value: Great conversation starters for curious visitors

The Role of Lichens in Garden Ecosystems

While neofuscelia lichen won’t attract butterflies like your native wildflowers, it plays its own quiet role in the garden ecosystem. These organisms contribute to the overall biodiversity of your space and help create the kind of authentic native environment that supports various wildlife species indirectly.

Can You Encourage Lichen Growth?

Here’s where lichens get interesting – you can’t really grow them in the traditional sense. Unlike plants that you can start from seeds or cuttings, lichens appear when conditions are just right. However, you can create an environment where they’re more likely to thrive naturally:

  • Maintain good air quality around your property
  • Avoid using harsh chemicals or pesticides
  • Preserve mature trees that provide suitable growing surfaces
  • Keep areas relatively undisturbed

Living with Lichens

If you discover neofuscelia lichen in your garden, consider yourself lucky! There’s no need to remove it – in fact, please don’t. These slow-growing organisms can take years to establish, and they’re completely harmless to trees and other plants. They’re simply hitchhiking on the bark, not parasitizing their host.

Think of neofuscelia lichen as nature’s seal of approval for your garden’s environmental health. Its quiet presence speaks to the success of your native gardening efforts, even if you never intended to invite it. Sometimes the best garden guests are the ones who invite themselves!

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 subhosseana (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