North America Native Plant

Santa Monica Lecidea Lichen

Botanical name: Lecidea santaemonicae

USDA symbol: LESA10

Habit: lichen

Native status: Native to North America  

Santa Monica Lecidea Lichen: A Tiny Natural Wonder You Can’t Grow (But Should Appreciate!) If you’ve stumbled across the name Santa Monica lecidea lichen while researching native plants, you might be wondering if this species could add some unique character to your garden. Well, here’s the thing about Lecidea santaemonicae ...

Santa Monica Lecidea Lichen: A Tiny Natural Wonder You Can’t Grow (But Should Appreciate!)

If you’ve stumbled across the name Santa Monica lecidea lichen while researching native plants, you might be wondering if this species could add some unique character to your garden. Well, here’s the thing about Lecidea santaemonicae – it’s not exactly what most people think of when they picture garden plants!

What Exactly Is Santa Monica Lecidea Lichen?

Let’s clear up any confusion right away: Santa Monica lecidea lichen isn’t a plant you can pop into a pot or tuck into a flower bed. This little organism is actually a lichen – a fascinating partnership between fungi and algae that creates something entirely unique in nature.

Lichens like Lecidea santaemonicae are part of an amazing biological collaboration. The fungal partner provides structure and protection, while the algae partner photosynthesizes to create food. Together, they form these small, crusty growths that can survive in conditions that would challenge most other living things.

Where Does It Come From?

As its name suggests, this lichen species is native to North America, though specific distribution information is quite limited. The Santa Monica part of its name hints at a possible connection to the California coastal region, but detailed range maps for this particular species are scarce in readily available resources.

Can You Grow Santa Monica Lecidea Lichen in Your Garden?

Here’s where we need to manage expectations: you can’t cultivate, plant, or grow lichens like Lecidea santaemonicae in the traditional gardening sense. These organisms:

  • Grow incredibly slowly over many years
  • Require very specific environmental conditions
  • Cannot be transplanted or propagated like typical plants
  • Develop naturally on rock surfaces and other substrates

Is It Beneficial to Have Around?

While you can’t grow Santa Monica lecidea lichen, finding it naturally occurring in your landscape is actually a good sign! Lichens are excellent indicators of air quality – they’re sensitive to pollution, so their presence suggests you have relatively clean air in your area.

Lichens also play important ecological roles by:

  • Breaking down rock surfaces over time, contributing to soil formation
  • Providing habitat for tiny insects and other small creatures
  • Adding to the biodiversity of your local ecosystem

How to Identify Santa Monica Lecidea Lichen

If you’re curious about whether you might have this lichen species in your yard, look for small, crusty growths on rock surfaces. However, identifying specific lichen species can be quite challenging, even for experts, as many species look very similar to the untrained eye.

Lecidea lichens typically appear as thin, crusty patches that seem almost painted onto rock surfaces. They’re usually quite small and inconspicuous, which means you might walk past them hundreds of times without noticing.

The Bottom Line for Gardeners

While Santa Monica lecidea lichen won’t be starring in your flower beds anytime soon, it represents the incredible diversity of life that can exist in and around our gardens. If you’re passionate about supporting native species and biodiversity, focus on creating conditions that support the entire ecosystem – including the tiny, often-overlooked organisms like lichens.

Instead of trying to grow this lichen, consider planting native flowering plants, shrubs, and trees that are appropriate for your region. These will create the kind of healthy, diverse environment where lichens like Lecidea santaemonicae can thrive naturally alongside more traditional garden favorites.

Remember: sometimes the most interesting parts of our natural world are the ones we can observe and appreciate rather than control and cultivate!

Classification

Group

Lichen

Kingdom

Fungi - Fungi

Subkingdom
Superdivision
Division

Ascomycota - Sac fungi

Subdivision
Class

Ascomycetes

Subclass
Order

Lecanorales

Family

Lecideaceae Chevall.

Genus

Lecidea Ach. - lecidea lichen

Species

Lecidea santae-monicae H. Magn. - Santa Monica lecidea lichen

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