North America Native Plant

Odontoschisma Prostratum

Botanical name: Odontoschisma prostratum

USDA symbol: ODPR

Habit: nonvascular

Native status: Native to North America  

Discovering Odontoschisma prostratum: A Tiny Native Liverwort in Your Garden Have you ever noticed tiny, delicate green patches carpeting the moist, shady corners of your garden? You might be looking at Odontoschisma prostratum, a fascinating native liverwort that’s been quietly thriving in North American forests and gardens for millennia. While ...

Discovering Odontoschisma prostratum: A Tiny Native Liverwort in Your Garden

Have you ever noticed tiny, delicate green patches carpeting the moist, shady corners of your garden? You might be looking at Odontoschisma prostratum, a fascinating native liverwort that’s been quietly thriving in North American forests and gardens for millennia. While this little plant doesn’t have a widely recognized common name, it’s worth getting to know this unassuming botanical resident.

What Exactly Is Odontoschisma prostratum?

Odontoschisma prostratum is a leafy liverwort, which puts it in a completely different category from the flowering plants we typically think of when planning our gardens. Liverworts are some of Earth’s most ancient land plants, and they’re quite different from mosses, despite often being found in similar locations.

This particular species is a prostrate (hence the name!) liverwort, meaning it grows flat against surfaces rather than standing upright. It forms small, delicate mats with tiny overlapping leaves that create intricate patterns when viewed up close. Think of it as nature’s living lace doily.

Where You’ll Find This Native Gem

As a North American native, Odontoschisma prostratum calls the eastern regions of the continent home, particularly thriving in the northeastern United States and southeastern Canada. It’s perfectly adapted to the climate and ecosystems of these areas, making it a true local resident.

Is It Beneficial to Have in Your Garden?

While you can’t exactly plant Odontoschisma prostratum like you would a perennial, its presence in your garden is actually a wonderful sign! Here’s why you should appreciate this tiny tenant:

  • Environmental indicator: Its presence suggests you have a healthy, balanced ecosystem with good moisture levels and minimal pollution
  • Soil protection: Like a living mulch, it helps prevent soil erosion in shaded areas
  • Habitat provider: Creates microhabitats for tiny soil organisms and insects
  • Natural beauty: Adds texture and subtle visual interest to shaded garden areas

How to Identify Odontoschisma prostratum

Spotting this liverwort requires a bit of detective work, but it’s quite rewarding once you know what to look for:

  • Location: Look in consistently moist, shaded areas, often on decaying wood, soil, or rocks
  • Growth pattern: Forms flat, prostrate mats rather than upright growth
  • Leaves: Tiny, overlapping leaves arranged in a distinctive pattern
  • Color: Various shades of green, often with a delicate, translucent appearance
  • Size: Individual plants are quite small, but colonies can spread across several inches

Creating Liverwort-Friendly Conditions

While you can’t really grow Odontoschisma prostratum in the traditional sense, you can certainly create conditions that welcome it and other beneficial liverworts to your garden:

  • Maintain shade: Preserve shaded areas under trees and shrubs
  • Keep things moist: Ensure consistent moisture in shaded garden areas
  • Leave some wild spaces: Don’t over-clean every corner of your garden
  • Provide surfaces: Leave some decaying wood or rocks in shaded areas
  • Avoid chemicals: Skip pesticides and herbicides in areas where you want to encourage native bryophytes

The Bottom Line

Odontoschisma prostratum might not be the showstopper that draws visitors to your garden, but it’s a valuable indicator of a healthy, thriving ecosystem. If you’re lucky enough to discover this tiny liverwort in your shaded garden spaces, consider yourself the steward of a little piece of ancient botanical history. Rather than trying to remove it, embrace its presence as a sign that your garden is supporting the full spectrum of native life.

Next time you’re wandering through the quieter, shadier parts of your garden, take a moment to look closely at those tiny green patches. You might just be admiring one of North America’s most understated native residents!

Odontoschisma Prostratum

Classification

Group

Liverwort

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Hepaticophyta - Liverworts

Subdivision

Hepaticae

Class

Hepaticopsida

Subclass

Jungermanniae

Order

Jungermanniales

Family

Cephaloziaceae Mig.

Genus

Odontoschisma (Dumort.) Dumort.

Species

Odontoschisma prostratum (Sw.) Trevis.

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