North America Native Plant

Lempholemma Lichen

Botanical name: Lempholemma umbella

USDA symbol: LEUM5

Habit: lichen

Native status: Native to North America  

Discovering Lempholemma Lichen: A Tiny North American Wonder Have you ever noticed small, crusty patches on rocks or tree bark during your garden wanderings and wondered what they might be? You might have encountered a lichen! Today, we’re diving into the fascinating world of Lempholemma umbella, commonly known as lempholemma ...

Discovering Lempholemma Lichen: A Tiny North American Wonder

Have you ever noticed small, crusty patches on rocks or tree bark during your garden wanderings and wondered what they might be? You might have encountered a lichen! Today, we’re diving into the fascinating world of Lempholemma umbella, commonly known as lempholemma lichen – a native North American species that’s more common than you might think.

What Exactly Is Lempholemma Lichen?

Before we go any further, let’s clear up a common misconception: lichens aren’t plants at all! Lempholemma umbella is actually a remarkable partnership between a fungus and an algae (and sometimes cyanobacteria too). This incredible duo works together in what scientists call a symbiotic relationship – the fungus provides structure and protection, while the algae produces food through photosynthesis.

Think of lichens as nature’s ultimate roommates who’ve figured out the perfect living arrangement!

Where Can You Find This Native Species?

Lempholemma umbella is native to North America, making it a true local resident in our ecosystems. While specific distribution details are still being studied by researchers, this lichen has adapted to various environments across the continent.

Spotting Lempholemma Lichen in Your Landscape

Identifying Lempholemma umbella can be tricky since it’s quite small and inconspicuous. Here’s what to look for:

  • Small, crusty or scaly appearance
  • Typically found growing on rock surfaces or tree bark
  • Forms patches or colonies rather than growing as individual specimens
  • Subtle coloring that often blends with its substrate

Don’t expect anything flashy – lichens are the quiet, understated members of the natural community!

Is Lempholemma Lichen Beneficial for Your Garden?

While you can’t plant or cultivate Lempholemma umbella like your favorite perennials, its presence in your landscape is actually a wonderful sign! Here’s why having lichens around is beneficial:

  • Air quality indicators: Lichens are sensitive to air pollution, so their presence suggests good air quality in your area
  • Ecosystem health: They contribute to biodiversity and play important roles in nutrient cycling
  • Natural beauty: While subtle, lichens add texture and natural character to rocks and tree bark
  • Soil formation: Over time, lichens help break down rock surfaces, contributing to soil development

Living Alongside Lempholemma Lichen

Since you can’t grow lichens like traditional garden plants, the best approach is to appreciate and protect them when they naturally occur in your landscape. Here are some ways to be lichen-friendly:

  • Avoid using harsh chemicals or pressure washing areas where lichens grow
  • Don’t scrape or remove lichens from rocks or trees – they’re doing important work!
  • Maintain good air quality practices around your property
  • Consider lichens as part of your landscape’s natural charm rather than something to remove

The Bottom Line

Lempholemma umbella might not be the showstopper you’d typically plant in your garden beds, but it’s a valuable native species that deserves our respect and appreciation. These tiny organisms are quietly working to maintain ecosystem health while serving as living indicators of environmental quality.

Next time you’re exploring your outdoor spaces, take a moment to look closely at the rocks and tree bark around you. You might just spot some lempholemma lichen going about its important business – a reminder that nature’s most valuable contributors aren’t always the biggest or brightest!

Lempholemma Lichen

Classification

Group

Lichen

Kingdom

Fungi - Fungi

Subkingdom
Superdivision
Division

Ascomycota - Sac fungi

Subdivision
Class

Ascomycetes

Subclass
Order

Lichinales

Family

Lichinaceae Nyl.

Genus

Lempholemma Körb. - lempholemma lichen

Species

Lempholemma umbella (Tuck.) Zahlbr. - lempholemma lichen

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