North America Native Plant

Frullania Catalinae

Botanical name: Frullania catalinae

USDA symbol: FRCA17

Habit: nonvascular

Native status: Native to North America  

Frullania catalinae: A Tiny Native Liverwort Worth Getting to Know Meet Frullania catalinae, a fascinating little liverwort that’s probably been hiding in plain sight in your garden or local wild spaces. While it might not have the flashy appeal of a blooming wildflower, this tiny native plant plays an important ...

Rare plant alert!

Region: Conservation status by state

Status: S2S4: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Frullania catalinae: A Tiny Native Liverwort Worth Getting to Know

Meet Frullania catalinae, a fascinating little liverwort that’s probably been hiding in plain sight in your garden or local wild spaces. While it might not have the flashy appeal of a blooming wildflower, this tiny native plant plays an important ecological role and offers a glimpse into one of the most ancient plant lineages on Earth.

What Exactly Is Frullania catalinae?

Frullania catalinae is a leafy liverwort, which puts it in a very special category of plants. Liverworts are among the earliest land plants to evolve, making them living fossils that have been around for hundreds of millions of years. Unlike the mosses you might be more familiar with, liverworts like Frullania catalinae have a flattened, leaf-like appearance and grow as small, creeping mats.

This particular species is herbaceous and typically attaches itself to solid surfaces rather than growing directly in soil. You’ll most likely spot it clinging to rocks, tree bark, or even dead wood, where it forms small, intricate colonies.

Where Does It Call Home?

Frullania catalinae is native to North America, though the exact geographic distribution of this specific species isn’t well-documented in readily available sources. Like many liverworts, it likely has a more limited range than many flowering plants, making it a special find when you do encounter it.

Conservation Status: A Plant That Needs Our Attention

Here’s something important to know: Frullania catalinae has a Global Conservation Status of S2S4, which indicates it may be vulnerable or of conservation concern. This means that while it’s not critically endangered, it’s not exactly common either. If you’re lucky enough to find this liverwort in your area, it’s worth protecting and appreciating rather than disturbing.

Why Should Gardeners Care About Liverworts?

You might wonder why a tiny liverwort matters in your garden ecosystem. Here’s the thing – liverworts like Frullania catalinae are ecological indicators. Their presence often signals good air quality and stable environmental conditions. They also:

  • Help prevent soil erosion on rocks and other surfaces
  • Create microhabitats for tiny invertebrates
  • Contribute to the overall biodiversity of your garden
  • Add subtle texture and interest to natural areas

How to Spot Frullania catalinae

Identifying liverworts takes a bit of practice, but here are some tips for recognizing Frullania catalinae:

  • Look for small, flattened, leaf-like structures growing in overlapping patterns
  • Check rocks, tree bark, and fallen logs – these are prime real estate for liverworts
  • The plant will appear as small, green, carpet-like patches
  • Unlike mosses, liverworts have a more flattened appearance rather than upright growth

Creating a Liverwort-Friendly Garden

While you probably won’t be planting Frullania catalinae directly, you can create conditions that welcome liverworts and other bryophytes to your garden naturally:

  • Maintain areas with consistent moisture without waterlogging
  • Preserve old tree bark, rocks, and fallen logs as potential habitat
  • Avoid using pesticides and chemicals that could harm these sensitive plants
  • Create shaded, protected areas where bryophytes can thrive

The Bottom Line

Frullania catalinae might not be the showstopper of your garden, but it represents something special – a connection to ancient plant lineages and a healthy ecosystem. If you’re fortunate enough to discover this little liverwort in your outdoor spaces, take a moment to appreciate this tiny marvel of evolution. And remember, sometimes the smallest plants play the biggest roles in maintaining the intricate web of life in our gardens.

Keep your eyes peeled during your next garden walk – you might just spot this fascinating native liverwort making its quiet contribution to your local ecosystem.

Frullania Catalinae

Classification

Group

Liverwort

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Hepaticophyta - Liverworts

Subdivision

Hepaticae

Class

Hepaticopsida

Subclass

Jungermanniae

Order

Jungermanniales

Family

Jubulaceae H. Klinggr.

Genus

Frullania Raddi

Species

Frullania catalinae A. Evans

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