North America Native Plant

Ochrolechia Gowardii

Botanical name: Ochrolechia gowardii

USDA symbol: OCGO2

Habit: lichen

Native status: Native to North America  

Discovering Ochrolechia gowardii: A Rock-Dwelling Lichen Worth Knowing If you’ve ever hiked through rocky terrain in North America and noticed pale, crusty patches decorating cliff faces and boulders, you might have encountered Ochrolechia gowardii without even knowing it! This fascinating organism isn’t a plant in the traditional sense—it’s actually a ...

Discovering Ochrolechia gowardii: A Rock-Dwelling Lichen Worth Knowing

If you’ve ever hiked through rocky terrain in North America and noticed pale, crusty patches decorating cliff faces and boulders, you might have encountered Ochrolechia gowardii without even knowing it! This fascinating organism isn’t a plant in the traditional sense—it’s actually a lichen, which makes it quite special indeed.

What Exactly Is Ochrolechia gowardii?

Let’s clear up any confusion right away: Ochrolechia gowardii is a lichen, not a flowering plant you can pop into your garden bed. Lichens are remarkable partnerships between fungi and algae (or sometimes cyanobacteria) that work together to create something entirely unique. Think of them as nature’s ultimate roommates—each bringing something essential to the table.

This particular lichen species is what scientists call a crustose lichen, meaning it forms a crust-like layer that’s tightly attached to its rocky home. You won’t be peeling this one off easily!

Where to Find This Rocky Resident

Ochrolechia gowardii calls North America home, though pinpointing its exact range can be tricky since lichen distribution data isn’t always as detailed as we’d like. You’re most likely to spot it in boreal and montane regions where the air is clean and the rocks are just right.

Spotting Ochrolechia gowardii in the Wild

Here’s what to look for on your next nature walk:

  • Whitish to pale gray crusty patches on rock surfaces
  • Tightly adhered to the rock substrate
  • Often found on cliff faces, large boulders, or rocky outcrops
  • May have small, disc-like reproductive structures (apothecia) that are slightly darker

Remember, proper identification of lichens often requires microscopic examination, so consider this a starting point for your lichen detective work!

Is It Beneficial to Have Around?

Absolutely! While you can’t exactly invite Ochrolechia gowardii into your garden, having it around in natural areas is fantastic news. Here’s why:

  • Lichens are excellent indicators of air quality—their presence suggests clean air
  • They contribute to ecosystem stability and biodiversity
  • Some lichens provide food for wildlife, though specific data for this species isn’t readily available
  • They play a role in the slow process of soil formation by gradually breaking down rock surfaces

Can You Grow It in Your Garden?

Here’s where we need to manage expectations: you can’t cultivate Ochrolechia gowardii like you would a tomato plant. Lichens have very specific requirements including the right type of rock substrate, proper air quality, and the perfect balance of moisture and light. They grow incredibly slowly and establish naturally over many years.

Instead of trying to grow this lichen, consider these garden-friendly alternatives:

  • Create rock gardens that might naturally attract other lichens over time
  • Focus on native plants that support clean air and biodiversity
  • Appreciate lichens like Ochrolechia gowardii in their natural habitats during hikes and nature walks

The Bottom Line

Ochrolechia gowardii might not be destined for your flower beds, but it’s a fascinating piece of North America’s natural heritage. Next time you’re exploring rocky landscapes, take a moment to appreciate these slow-growing, partnership-loving organisms. They’re quietly doing their part to keep our ecosystems healthy and balanced—and that’s pretty amazing when you think about it!

Keep your eyes peeled for these pale, crusty patches on your next outdoor adventure. You might just find yourself developing a newfound appreciation for the incredible diversity of life that exists beyond the typical garden variety!

Ochrolechia Gowardii

Classification

Group

Lichen

Kingdom

Fungi - Fungi

Subkingdom
Superdivision
Division

Ascomycota - Sac fungi

Subdivision
Class

Ascomycetes

Subclass
Order

Lecanorales

Family

Pertusariaceae Körb.

Genus

Ochrolechia A. Massal. - crabseye lichen

Species

Ochrolechia gowardii Brodo

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