North America Native Plant

Strangospora Lichen

Botanical name: Strangospora moriformis

USDA symbol: STMO5

Habit: lichen

Native status: Native to North America  

Synonyms: Biatorella moriformis (Ach.) Th. Fr. (BIMO2)   

Strangospora Lichen: A Tiny Natural Wonder in Your Garden Have you ever noticed small, bumpy growths on tree bark or rocks in your garden and wondered what they were? You might be looking at strangospora lichen (Strangospora moriformis), a fascinating little organism that’s more complex and beneficial than you might ...

Strangospora Lichen: A Tiny Natural Wonder in Your Garden

Have you ever noticed small, bumpy growths on tree bark or rocks in your garden and wondered what they were? You might be looking at strangospora lichen (Strangospora moriformis), a fascinating little organism that’s more complex and beneficial than you might think!

What Exactly Is Strangospora Lichen?

First things first – strangospora lichen isn’t actually a plant at all! It’s a lichen, which is a remarkable partnership between a fungus and an algae (or sometimes cyanobacteria) living together in perfect harmony. Think of it as nature’s ultimate roommate situation where both parties benefit from the arrangement.

This particular lichen species is native to North America and goes by the scientific name Strangospora moriformis. You might also see it referred to by its synonym, Biatorella moriformis, in older field guides or scientific literature.

Where You’ll Find This Little Marvel

Strangospora lichen has made itself at home throughout North America, quietly going about its business in our temperate regions. It’s one of those understated natives that doesn’t demand attention but plays an important role in the ecosystem.

Spotting Strangospora Lichen in Your Garden

Identifying strangospora lichen is like becoming a nature detective. Here’s what to look for:

  • Small, warty or granular growths that look almost like tiny cauliflower heads
  • Usually found growing on tree bark or rock surfaces
  • Forms crusty, bumpy patches that can vary in color from grayish to brownish
  • Often overlooked because of its small size and subtle appearance

Is Strangospora Lichen Good for Your Garden?

Absolutely! While you can’t exactly plant or cultivate strangospora lichen (more on that in a moment), having it appear naturally in your garden is actually a wonderful sign. Here’s why you should be happy to see it:

  • Air quality indicator: Lichens are notoriously sensitive to air pollution, so their presence suggests you have relatively clean air in your garden
  • Ecosystem support: While lichens don’t produce flowers for pollinators, they provide food and habitat for various small creatures and insects
  • Natural beauty: They add subtle texture and interest to natural landscapes, especially in woodland gardens
  • Low maintenance: They require absolutely no care from you – nature’s ultimate low-maintenance garden resident!

The You Can’t Grow It Reality

Here’s where strangospora lichen differs dramatically from your typical garden plants – you simply cannot plant, propagate, or actively cultivate it. Lichens establish themselves based on very specific environmental conditions, and trying to transplant or encourage them rarely works.

Instead of trying to grow strangospora lichen, the best approach is to:

  • Maintain clean air quality in your area
  • Preserve existing natural surfaces like old tree bark and rocks
  • Avoid using harsh chemicals or pollutants in your garden
  • Be patient – if conditions are right, lichens will find their way to your garden naturally

Creating a Lichen-Friendly Environment

While you can’t actively plant strangospora lichen, you can certainly create conditions that welcome it and other native lichens:

  • Keep mature trees with interesting bark textures
  • Leave some natural rock surfaces undisturbed
  • Minimize the use of air-polluting chemicals and fertilizers
  • Embrace a more natural, less manicured garden style

The Bottom Line

Strangospora lichen might not be the showstopper of your garden, but it’s definitely a species worth appreciating and protecting. Think of it as nature’s quiet stamp of approval – when you spot these little warty growths on your trees or rocks, you’ll know you’re doing something right in creating a healthy, natural environment.

So next time you’re wandering through your garden, take a moment to look for these tiny marvels. They’re proof that sometimes the most interesting garden residents are the ones that choose to live there all on their own!

Strangospora Lichen

Classification

Group

Lichen

Kingdom

Fungi - Fungi

Subkingdom
Superdivision
Division

Ascomycota - Sac fungi

Subdivision
Class

Ascomycetes

Subclass
Order

Lecanorales

Family

Acarosporaceae Zahlbr.

Genus

Strangospora A. Massal. - strangospora lichen

Species

Strangospora moriformis (Ach.) Stein - strangospora lichen

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