North America Native Plant

Pallavicinia Lyellii

Botanical name: Pallavicinia lyellii

USDA symbol: PALY3

Habit: nonvascular

Native status: Native to North America  

Discovering Pallavicinia lyellii: A Hidden Garden Gem You Probably Never Noticed Have you ever taken a close look at those tiny, flat green patches growing on rocks or fallen logs in your shady garden spots? You might have just spotted Pallavicinia lyellii, a fascinating native liverwort that’s been quietly doing ...

Discovering Pallavicinia lyellii: A Hidden Garden Gem You Probably Never Noticed

Have you ever taken a close look at those tiny, flat green patches growing on rocks or fallen logs in your shady garden spots? You might have just spotted Pallavicinia lyellii, a fascinating native liverwort that’s been quietly doing its job in North American ecosystems long before we started thinking about native gardening.

What Exactly Is Pallavicinia lyellii?

Let’s start with the basics: Pallavicinia lyellii is a liverwort, which puts it in a pretty exclusive club of ancient plants that have been around for roughly 400 million years. Think of liverworts as the quiet cousins of mosses – they’re small, green, and absolutely essential to healthy ecosystems, even though they rarely get the spotlight they deserve.

This particular species is a terrestrial liverwort, meaning it grows on land rather than in water. You’ll typically find it creating thin, flat, ribbon-like patches on moist surfaces like rocks, rotting wood, or sometimes directly on soil in very humid conditions.

Where You’ll Find This Native Beauty

Pallavicinia lyellii is native to North America, where it thrives in the kinds of spots that many gardeners might overlook – those perpetually damp, shady nooks where other plants struggle to establish themselves.

Why Your Garden Benefits from Liverworts

While you won’t be planting Pallavicinia lyellii like you would a perennial, discovering it in your garden is actually a wonderful sign. Here’s why these tiny plants are garden superstars:

  • They indicate healthy soil moisture and air quality
  • They help prevent soil erosion in delicate areas
  • They contribute to the overall biodiversity of your garden ecosystem
  • They create microhabitats for tiny beneficial creatures

How to Identify Pallavicinia lyellii

Spotting this liverwort requires getting down to ground level – literally. Look for these characteristics:

  • Flat, green, ribbon-like growths that lie close to their surface
  • Typically found on moist rocks, logs, or very humid soil
  • Forms small patches rather than extensive carpets
  • Appears smooth and somewhat translucent when viewed closely
  • Thrives in consistently moist, shaded areas with good air circulation

Creating Conditions Where Liverworts Thrive

You can’t exactly plant Pallavicinia lyellii, but you can certainly create an environment where it and other beneficial liverworts might naturally establish themselves:

  • Maintain shaded areas with consistent moisture
  • Leave some fallen logs or natural stone surfaces undisturbed
  • Avoid using harsh chemicals or fertilizers in naturalized areas
  • Ensure good air circulation while maintaining humidity

The Bottom Line

Pallavicinia lyellii might not be the showstopping centerpiece of your garden design, but it’s one of those quietly important native species that contributes to a healthy, functioning ecosystem. If you spot these little liverworts in your garden, consider yourself lucky – they’re indicators of good environmental conditions and add to the complex web of life that makes native gardening so rewarding.

Rather than trying to cultivate them directly, focus on creating the kinds of diverse, chemical-free environments where they can naturally establish themselves alongside other native species. Sometimes the best gardening approach is simply providing the right conditions and letting nature do what it does best.

Pallavicinia Lyellii

Classification

Group

Liverwort

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Hepaticophyta - Liverworts

Subdivision

Hepaticae

Class

Hepaticopsida

Subclass

Jungermanniae

Order

Metzgeriales

Family

Pallaviciniaceae Mig.

Genus

Pallavicinia A. Gray, nom. cons.

Species

Pallavicinia lyellii (Hook.) Carruth.

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