North America Native Plant

Loxospora Lichen

Botanical name: Loxospora elatina

USDA symbol: LOEL3

Habit: lichen

Native status: Native to North America  

Synonyms: Haematomma elatinum (Ach.) A. Massal. (HAEL4)   

Discovering Loxospora Lichen: A Tiny Natural Wonder in Your Backyard Have you ever noticed small, crusty patches on tree bark that look almost painted on? You might be looking at loxospora lichen (Loxospora elatina), a fascinating organism that’s more common than you might think. This tiny natural wonder isn’t actually ...

Discovering Loxospora Lichen: A Tiny Natural Wonder in Your Backyard

Have you ever noticed small, crusty patches on tree bark that look almost painted on? You might be looking at loxospora lichen (Loxospora elatina), a fascinating organism that’s more common than you might think. This tiny natural wonder isn’t actually a plant at all – it’s a lichen, which makes it a completely different kind of living thing altogether!

What Exactly Is Loxospora Lichen?

Loxospora lichen is a crusty, or crustose, lichen that forms small, pale yellow-green patches on tree bark. Unlike plants that make their own food through photosynthesis alone, lichens are actually a partnership between fungi and algae working together. The fungal partner provides structure and protection, while the algae partner produces food through photosynthesis. It’s like nature’s ultimate roommate situation!

This particular lichen was previously known by the scientific name Haematomma elatinum, but taxonomists (the folks who organize and name living things) have since reclassified it as Loxospora elatina.

Where You’ll Find This Little Guy

Loxospora elatina is native to North America, particularly thriving in eastern and southeastern regions of the continent. You’ll typically spot it growing on the bark of deciduous trees, where it forms small, scattered patches that might remind you of tiny abstract paintings.

How to Identify Loxospora Lichen

Identifying loxospora lichen is easier than you might think once you know what to look for:

  • Small, crusty patches on tree bark
  • Pale yellow-green to whitish coloration
  • Smooth, somewhat shiny surface texture
  • Typically grows on deciduous tree bark rather than rocks or soil
  • Forms irregular, roughly circular patches

Is Loxospora Lichen Beneficial for Your Garden?

While you can’t plant or cultivate loxospora lichen (it’s not that kind of garden resident!), its presence is actually a wonderful sign for your outdoor space. Lichens are incredibly sensitive to air pollution, so finding them growing naturally in your yard means you’ve got pretty clean air – congratulations!

Here are some ways this little lichen benefits your garden ecosystem:

  • Acts as a natural air quality indicator
  • Provides tiny amounts of habitat for microscopic creatures
  • Contributes to the overall biodiversity of your space
  • Adds subtle natural beauty and texture to tree bark
  • Helps break down organic matter in tiny amounts

Can You Grow Loxospora Lichen?

Here’s where things get interesting – you can’t actually plant or grow loxospora lichen in the traditional gardening sense. Lichens establish themselves naturally and have very specific requirements that are nearly impossible to replicate artificially. They need just the right combination of air quality, humidity, tree bark chemistry, and environmental conditions.

The best thing you can do to encourage lichens like Loxospora elatina in your space is to maintain a healthy, chemical-free environment. Avoid using pesticides or fungicides near trees, maintain good air circulation, and let nature take its course.

Appreciating the Small Wonders

Loxospora lichen might not be the showstopper of your garden, but it represents something pretty special – a tiny, complex organism that’s been quietly doing its thing for millions of years. Next time you’re walking around your yard or local park, take a moment to look closely at tree bark. You might just spot these small, crusty patches and know you’re looking at one of nature’s most successful partnerships.

While you can’t cultivate loxospora lichen, its presence tells you that your outdoor space is healthy and thriving. And in a world where we’re often focused on big, dramatic garden features, there’s something wonderfully grounding about appreciating these tiny, persistent organisms that ask for nothing but clean air and a bit of bark to call home.

Loxospora Lichen

Classification

Group

Lichen

Kingdom

Fungi - Fungi

Subkingdom
Superdivision
Division

Ascomycota - Sac fungi

Subdivision
Class

Ascomycetes

Subclass
Order

Lecanorales

Family

Haematommataceae Hafellner

Genus

Loxospora A. Massal. - loxospora lichen

Species

Loxospora elatina (Ach.) A. Massal. - loxospora lichen

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