North America Native Plant

Intermediate Cup Lichen

Botanical name: Cladonia ecmocyna intermedia

USDA symbol: CLECI

Habit: lichen

Native status: Native to North America  

Discovering the Intermediate Cup Lichen in Your Natural Landscape Have you ever noticed tiny, cup-like structures growing on soil or old wood in your yard? You might be looking at the intermediate cup lichen, scientifically known as Cladonia ecmocyna intermedia. While most gardeners focus on flowers and shrubs, these fascinating ...

Discovering the Intermediate Cup Lichen in Your Natural Landscape

Have you ever noticed tiny, cup-like structures growing on soil or old wood in your yard? You might be looking at the intermediate cup lichen, scientifically known as Cladonia ecmocyna intermedia. While most gardeners focus on flowers and shrubs, these fascinating organisms play an important role in North American ecosystems and deserve our attention and appreciation.

What Exactly Is the Intermediate Cup Lichen?

The intermediate cup lichen isn’t actually a plant at all – it’s a remarkable partnership between fungi and algae working together as one organism. This collaboration creates those distinctive small, cup-shaped structures that give this lichen its common name. These cups typically appear grayish-green and can be found growing directly on soil, decaying wood, or sometimes rocks.

As a native North American species, the intermediate cup lichen has been quietly contributing to our local ecosystems for countless years, often going unnoticed by casual observers.

Is This Lichen Beneficial for Your Garden?

While you can’t exactly plant intermediate cup lichen like you would a tomato or a rose bush, its presence in your landscape is actually a positive sign. Here’s why you should welcome these little cups:

  • They indicate good air quality in your area
  • They help prevent soil erosion
  • They contribute to the overall biodiversity of your property
  • They’re part of the natural succession process in disturbed soils

How to Identify Intermediate Cup Lichen

Spotting this lichen requires a keen eye, as they’re quite small. Look for these characteristics:

  • Cup-shaped structures, usually less than an inch tall
  • Grayish-green coloration
  • Growing directly from soil or on decaying organic matter
  • Often found in small clusters or colonies
  • May appear more vibrant after rain or in humid conditions

The best time to observe them is during cooler, moist periods when they’re most active and visible.

Supporting Lichens in Your Natural Landscape

Rather than trying to cultivate intermediate cup lichen, focus on creating conditions where they can thrive naturally:

  • Maintain areas of undisturbed soil in your landscape
  • Avoid using chemical pesticides and fertilizers in areas where lichens grow
  • Leave some fallen logs or branches to decompose naturally
  • Reduce foot traffic in areas where you notice lichen colonies

The Bigger Picture

Finding intermediate cup lichen on your property is like discovering a tiny piece of natural history. These organisms are incredibly slow-growing and sensitive to environmental changes, making them excellent indicators of ecosystem health. Their presence suggests that your local environment is supporting the complex web of life that makes native ecosystems so resilient.

Next time you’re walking through your yard or local natural areas, take a moment to look down and appreciate these remarkable partnerships between fungi and algae. The intermediate cup lichen might be small, but it’s playing a big role in maintaining the health of North American landscapes.

Intermediate Cup Lichen

Classification

Group

Lichen

Kingdom

Fungi - Fungi

Subkingdom
Superdivision
Division

Ascomycota - Sac fungi

Subdivision
Class

Ascomycetes

Subclass
Order

Lecanorales

Family

Cladoniaceae Zenker

Genus

Cladonia P. Browne - cup lichen

Species

Cladonia ecmocyna Leight. - cup lichen

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