North America Native Plant

Loxospora Lichen

Botanical name: Loxospora ochrophaea

USDA symbol: LOOC

Habit: lichen

Native status: Native to North America  

Synonyms: Haematomma ochrophaeum (Tuck.) A. Massal. (HAOC2)   

Loxospora Lichen: The Tiny Garden Helper You Never Knew You Had Have you ever taken a close look at the bark of the trees in your yard and noticed small, crusty patches that look almost painted on? Chances are, you might be looking at a lichen – possibly even the ...

Loxospora Lichen: The Tiny Garden Helper You Never Knew You Had

Have you ever taken a close look at the bark of the trees in your yard and noticed small, crusty patches that look almost painted on? Chances are, you might be looking at a lichen – possibly even the fascinating Loxospora ochrophaea, commonly known as loxospora lichen. While you can’t exactly plant this little organism in your garden bed, it might already be living there, quietly doing its part to keep your outdoor ecosystem healthy!

What Exactly Is Loxospora Lichen?

Loxospora lichen isn’t actually a plant at all – it’s something much more interesting! This native North American species is a lichen, which is essentially a 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 partners benefit from the arrangement.

You might also encounter this species under its scientific synonym, Haematomma ochrophaeum, in older botanical references. But regardless of what you call it, this small, crusty lichen has been quietly inhabiting North American forests and landscapes for centuries.

Where You’ll Find This Native Treasure

As a native North American species, loxospora lichen has made itself at home across various temperate and boreal regions of the continent. It’s not picky about its real estate – you’ll typically spot it growing on the bark of both coniferous and hardwood trees.

Spotting Loxospora Lichen in Your Landscape

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

  • Small, crusty patches on tree bark
  • Yellowish to ochre (brownish-yellow) coloration – hence the name ochrophaea
  • Flat, spreading growth pattern that seems almost painted onto the bark
  • Typically found on the trunks and larger branches of trees

The lichen gets its distinctive color from its unique partnership – the fungal component creates the structure while the algal partner provides that characteristic yellowish hue through photosynthesis.

Is Loxospora Lichen Good for Your Garden?

Absolutely! While you might not be able to order this lichen from your local nursery, having it show up naturally in your landscape is actually a wonderful sign. Here’s why you should be happy to see it:

  • Air quality indicator: Lichens are sensitive to air pollution, so their presence suggests you have relatively clean air
  • Ecosystem support: They provide food and shelter for tiny insects and other small creatures
  • Soil contribution: When pieces eventually fall off, they help enrich the soil below
  • Natural beauty: They add subtle texture and color variation to tree bark

Living With Loxospora Lichen

The best part about loxospora lichen? It requires absolutely zero maintenance from you! This hardy little organism takes care of itself completely. It doesn’t harm your trees – in fact, it’s just using the bark as a place to live, not as a food source.

If you’re lucky enough to have this lichen in your landscape, simply enjoy it as part of your garden’s natural biodiversity. Avoid using harsh chemicals on or near trees where lichens are growing, as they’re quite sensitive to pollutants and chemicals.

The Bottom Line

While you can’t plant loxospora lichen in your garden, you can certainly appreciate it if nature decides to include it in your landscape design. This native North American species is a sign of a healthy, balanced ecosystem – and really, what more could a nature-loving gardener ask for? Sometimes the best garden inhabitants are the ones that choose you, rather than the ones you choose!

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 ochrophaea (Tuck.) R.C. Harris - 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