North America Native Plant

Darrov’s Rinodina Lichen

Botanical name: Rinodina darrowii

USDA symbol: RIDA2

Habit: lichen

Native status: Native to North America  

Darrow’s Rinodina Lichen: A Tiny Native Wonder You Can’t Plant If you’ve stumbled across the name Darrow’s rinodina lichen while researching native plants for your garden, you might be wondering if this North American native could be a unique addition to your landscape. Well, here’s the thing about Rinodina darrowii ...

Darrow’s Rinodina Lichen: A Tiny Native Wonder You Can’t Plant

If you’ve stumbled across the name Darrow’s rinodina lichen while researching native plants for your garden, you might be wondering if this North American native could be a unique addition to your landscape. Well, here’s the thing about Rinodina darrowii – it’s not exactly the kind of plant you can pick up at your local nursery!

What Exactly Is Darrow’s Rinodina Lichen?

Darrow’s rinodina lichen belongs to a fascinating group of organisms that aren’t quite plants in the traditional sense. Lichens are actually a partnership between fungi and algae (or sometimes cyanobacteria), working together in perfect harmony. Think of them as nature’s ultimate roommates – the fungus provides the home and protection, while the algae handles the food production through photosynthesis.

Rinodina darrowii is what scientists call a crustose lichen, meaning it forms a crusty, flat layer that’s tightly attached to whatever surface it calls home. You won’t find this little guy standing tall like a flower or spreading like a groundcover – instead, it creates small patches that might remind you of colorful paint splatters on rocks or tree bark.

Where Does This Lichen Call Home?

As a native North American species, Darrow’s rinodina lichen has evolved to thrive in specific conditions across the continent. However, detailed information about its exact geographic range is limited, which isn’t uncommon for many lichen species that often fly under the radar of casual observation.

Can You Actually Grow This Lichen in Your Garden?

Here’s where we need to manage expectations: you can’t plant, cultivate, or grow Darrow’s rinodina lichen in your garden the way you would with typical native plants. Lichens are incredibly picky about their growing conditions and have complex relationships with their environment that we can’t easily replicate.

Instead of trying to introduce lichens to your garden, the best approach is to:

  • Create conditions that naturally attract native lichens
  • Avoid using chemicals that might harm existing lichen communities
  • Leave natural surfaces like rocks, old wood, or tree bark undisturbed
  • Maintain good air quality, as many lichens are sensitive to pollution

How to Spot Darrow’s Rinodina Lichen

If you’re curious about whether this lichen might already be living in your area, keep an eye out for small, crusty patches on rocks or bark. However, identifying specific lichen species often requires a magnifying glass and considerable expertise – many lichens look quite similar to the untrained eye.

The identification of Rinodina darrowii would typically require examination of microscopic features, making it more of a specialist’s pursuit than a casual gardener’s identification project.

The Hidden Benefits of Having Lichens Around

While you can’t plant Darrow’s rinodina lichen directly, having any lichens in your landscape is actually a good sign! Lichens serve as natural air quality indicators – many species are quite sensitive to pollution, so their presence suggests you’ve got relatively clean air.

Lichens also play important ecological roles:

  • They help break down rock surfaces, contributing to soil formation over time
  • Some provide nesting material for birds
  • They add to the overall biodiversity of your local ecosystem
  • They create habitat for tiny invertebrates

The Bottom Line for Gardeners

Darrow’s rinodina lichen is one of those fascinating native species that reminds us that not everything in nature can be cultivated or controlled – and that’s perfectly okay! Instead of trying to add this particular lichen to your garden, focus on creating a healthy, chemical-free environment where native lichens (including possibly this one) can establish themselves naturally.

If you’re interested in supporting native biodiversity, consider planting native flowering plants, shrubs, and trees that you can cultivate. These will provide the foundation for a healthy ecosystem where lichens and other small native organisms can thrive on their own terms.

Sometimes the best way to garden with native species is simply to step back and let nature do what it does best!

Darrov’s Rinodina Lichen

Classification

Group

Lichen

Kingdom

Fungi - Fungi

Subkingdom
Superdivision
Division

Ascomycota - Sac fungi

Subdivision
Class

Ascomycetes

Subclass
Order

Lecanorales

Family

Physciaceae Zahlbr.

Genus

Rinodina (Ach.) A. Gray - rinodina lichen

Species

Rinodina darrowii E.D. Rudolph - Darrov's rinodina lichen

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