North America Native Plant

Lichenothelia Lichen

Botanical name: Lichenothelia intermixta

USDA symbol: LIIN8

Habit: lichen

Native status: Native to North America  

Lichenothelia Lichen: A Mysterious Garden Guest Have you ever noticed crusty, colorful patches growing on rocks, tree bark, or even concrete surfaces in your garden and wondered what they were? You might be looking at lichens – and possibly even the elusive lichenothelia lichen (Lichenothelia intermixta). While this particular species ...

Lichenothelia Lichen: A Mysterious Garden Guest

Have you ever noticed crusty, colorful patches growing on rocks, tree bark, or even concrete surfaces in your garden and wondered what they were? You might be looking at lichens – and possibly even the elusive lichenothelia lichen (Lichenothelia intermixta). While this particular species remains somewhat of a mystery in the botanical world, understanding lichens in general can help you appreciate these fascinating organisms that quietly inhabit our outdoor spaces.

What Exactly Is a Lichen?

Before we dive into the specifics of lichenothelia lichen, let’s clear up a common misconception: lichens aren’t plants at all! They’re actually a partnership between fungi and algae (or sometimes cyanobacteria) living together in what scientists call a symbiotic relationship. Think of them as nature’s ultimate roommates – the fungus provides shelter and protection, while the algae produces food through photosynthesis.

Native Status and Where You Might Find It

Lichenothelia intermixta is considered native to North America, which means it has naturally evolved alongside our local ecosystems. However, specific information about its exact geographic distribution remains limited in current botanical literature.

Is Lichenothelia Lichen Beneficial to Your Garden?

While you can’t exactly plant lichens like you would a flower or shrub, they can be incredibly beneficial garden inhabitants when they appear naturally:

  • Air quality indicators – Lichens are sensitive to air pollution, so their presence often indicates clean air
  • Soil building – As they break down, lichens contribute organic matter to the soil
  • Wildlife habitat – Many small creatures, including insects and birds, use lichens for shelter and nesting material
  • Natural beauty – Their unique textures and subtle colors add visual interest to garden surfaces

How to Identify Lichens in Your Garden

Since detailed identification characteristics for Lichenothelia intermixta specifically aren’t well-documented, here are general tips for spotting lichens in your outdoor space:

  • Look for crusty, leafy, or branching growths on hard surfaces
  • Colors can range from gray and green to bright orange, yellow, or even red
  • They often appear after rain when they’re more vibrant and noticeable
  • Check tree bark, rocks, old wooden structures, and even concrete surfaces
  • They grow very slowly and tend to stay in the same spot for years

Should You Encourage Lichens in Your Garden?

The short answer is: if they show up naturally, celebrate them! You can’t really cultivate lichens like traditional plants, but you can create conditions that might welcome them:

  • Avoid using chemical treatments on surfaces where lichens might grow
  • Maintain good air quality around your property
  • Leave some natural, undisturbed surfaces like old wood or stone
  • Be patient – lichens grow incredibly slowly, sometimes less than a millimeter per year

The Mystery Continues

While Lichenothelia intermixta remains something of an enigma in the botanical world, the broader world of lichens offers endless fascination for curious gardeners. These remarkable organisms have been quietly thriving on Earth for hundreds of millions of years, long before the first flowers ever bloomed.

Next time you’re wandering through your garden, take a moment to appreciate any lichens you spot. They might not be the showiest inhabitants of your outdoor space, but they’re certainly among the most ancient and resilient. Who knows? You might even be looking at the mysterious lichenothelia lichen itself!

Lichenothelia Lichen

Classification

Group

Lichen

Kingdom

Fungi - Fungi

Subkingdom
Superdivision
Division

Ascomycota - Sac fungi

Subdivision
Class

Ascomycetes

Subclass
Order

Dothideales

Family

Lichenotheliaceae Henssen

Genus

Lichenothelia D. Hawksw. - lichenothelia lichen

Species

Lichenothelia intermixta Henssen - lichenothelia lichen

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