Native Plants

Burgess’ Skin Lichen

Leptogium burgessii

USDA symbol: LEBU4

North America: native

Have you ever noticed those peculiar, leafy growths clinging to tree bark or rocks in your garden and wondered what they might be? You might have encountered Burgess’ skin lichen (Leptogium burgessii), one of nature’s most interesting collaborative organisms that occasionally graces our outdoor spaces. Burgess’ skin lichen isn’t actually ...

Discovering Burgess’ Skin Lichen: A Fascinating Garden Visitor

Have you ever noticed those peculiar, leafy growths clinging to tree bark or rocks in your garden and wondered what they might be? You might have encountered Burgess’ skin lichen (Leptogium burgessii), one of nature’s most interesting collaborative organisms that occasionally graces our outdoor spaces.

What Exactly Is Burgess’ Skin Lichen?

Burgess’ skin lichen isn’t actually a plant at all – it’s something much more fascinating! This remarkable organism is actually a partnership between a fungus and algae (or sometimes cyanobacteria) living together in perfect harmony. The scientific name Leptogium burgessii might sound intimidating, but you can also find it referenced as Leptogium inflexum in older botanical literature.

This native North American lichen gets its skin nickname from its distinctive appearance – it forms thin, leafy structures that really do look like they could be pieces of weathered skin or leather. The thallus (that’s the lichen’s body) typically appears gray-blue to brownish and has a smooth, somewhat wrinkled surface that feels papery to the touch.

Where You’ll Find It

As a native species to North America, Burgess’ skin lichen has been quietly making its home across various regions of the continent for countless years. You’re most likely to spot it growing on tree bark, especially on hardwood trees, or sometimes on rocks and other surfaces where it can get the moisture and nutrients it needs.

Is It Beneficial for Your Garden?

The short answer is absolutely! While you can’t plant or cultivate Burgess’ skin lichen like you would a flower or shrub, its presence in your garden is actually a wonderful sign. Here’s why you should be happy to see it:

  • Air quality indicator: Lichens are incredibly sensitive to air pollution, so their presence suggests your garden enjoys relatively clean air
  • Ecosystem health: They contribute to biodiversity and create microhabitats for tiny creatures
  • Natural beauty: These organisms add subtle texture and interest to tree trunks and rock surfaces
  • No harm to plants: Lichens don’t damage trees or other plants – they’re just along for the ride

How to Identify Burgess’ Skin Lichen

Spotting Burgess’ skin lichen takes a bit of practice, but once you know what to look for, you’ll start noticing it everywhere! Here are the key identification features:

  • Appearance: Thin, leafy, and skin-like with a smooth or slightly wrinkled surface
  • Color: Gray-blue to brownish, sometimes with a slight greenish tint when moist
  • Texture: Feels papery or leathery, not fuzzy or crusty
  • Growth pattern: Forms overlapping lobes that can create interesting patterns on bark
  • Size: Individual lobes are typically small, but colonies can spread across several inches

Can You Encourage Its Growth?

Here’s where lichens get really interesting – you can’t actually plant or grow them in the traditional sense. Burgess’ skin lichen will show up in your garden entirely on its own terms, and that’s part of what makes discovering it so special! However, you can create conditions that make your garden more lichen-friendly:

  • Maintain good air quality around your property
  • Avoid using harsh chemicals or pesticides that might affect these sensitive organisms
  • Keep mature trees healthy, as they provide ideal surfaces for lichen growth
  • Be patient – lichens grow very slowly and appear when conditions are just right

A Living Partnership Worth Celebrating

The next time you’re strolling through your garden, take a moment to appreciate any lichens you might encounter, including the distinctive Burgess’ skin lichen. These remarkable organisms represent one of nature’s most successful partnerships, quietly going about their business while adding to the complex web of life in your outdoor space.

Remember, finding lichens like Leptogium burgessii in your garden is actually a compliment – it means you’re providing a healthy environment where these sensitive organisms can thrive. So give yourself a pat on the back and enjoy these fascinating garden visitors for the natural wonders they truly are!

Leptogium burgessii is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Leptogium burgessii is also known as:

Leptogium inflexum | USDA symbol: LEIN14

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Lichen
Kingdom: Fungi - Fungi
Division: Ascomycota - Sac fungi
Class: Ascomycetes
Order: Lecanorales
Family: Collemataceae Zenker
Genus: Leptogium (Ach.) A. Gray - skin lichen

Species: Leptogium burgessii (L.) Mont. - Burgess' skin lichen

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