North America Native Plant

Serrate Dung Moss

Botanical name: Tayloria serrata

USDA symbol: TASE3

Habit: nonvascular

Native status: Native to North America  

Synonyms: Tayloria serrata (Hedw.) Bruch & Schimp. var. flagellaris (Brid.) Bruch & Schimp. (TASEF)  ⚘  Tayloria serrata (Hedw.) Bruch & Schimp. var. tenuis (With.) Bruch & Schimp. (TASET)  ⚘  Tayloria tenuis (With.) Schimp. (TATE6)   

Meet Serrate Dung Moss: A Tiny Garden Helper You’ve Probably Never Noticed If you’ve ever wandered through a shaded woodland and noticed tiny, delicate green carpets covering logs or enriched soil, you might have encountered Tayloria serrata, commonly known as serrate dung moss. Don’t let the name put you off ...

Meet Serrate Dung Moss: A Tiny Garden Helper You’ve Probably Never Noticed

If you’ve ever wandered through a shaded woodland and noticed tiny, delicate green carpets covering logs or enriched soil, you might have encountered Tayloria serrata, commonly known as serrate dung moss. Don’t let the name put you off – this little moss is far more charming and beneficial than its moniker suggests!

What Exactly Is Serrate Dung Moss?

Serrate dung moss is a small bryophyte, which is simply a fancy term for the group of plants that includes mosses, liverworts, and hornworts. As a native North American species, this moss plays a quiet but important role in our natural ecosystems. The serrate in its name refers to the saw-toothed edges of its tiny leaves, which you can observe with a magnifying glass if you’re curious enough to take a closer look.

This terrestrial moss is herbaceous and often attaches itself to solid objects like rocks, fallen logs, or other organic matter rather than growing directly in soil. It’s one of those unsung heroes of the plant world that works behind the scenes to keep our ecosystems healthy and balanced.

Where You’ll Find This Moss

Serrate dung moss is native to North America, with populations scattered across northern regions including parts of Canada and the northern United States. You’re most likely to spot it in cool, moist woodland environments where it can take advantage of consistent shade and humidity.

Is Serrate Dung Moss Beneficial for Your Garden?

While you might not think of moss as a garden superstar, serrate dung moss actually offers several subtle benefits:

  • Helps retain soil moisture in woodland garden settings
  • Contributes to soil stability and prevents erosion on slopes
  • Creates a natural, authentic woodland atmosphere
  • Supports the broader ecosystem by providing habitat for tiny invertebrates
  • Requires zero maintenance once established

How to Identify Serrate Dung Moss

Spotting this moss in the wild (or in your garden) requires a keen eye and perhaps a magnifying glass:

  • Look for small, delicate moss growing on decaying organic matter
  • The leaves have distinctive serrated (saw-toothed) edges
  • Forms small, loose colonies rather than dense mats
  • Typically found in consistently moist, shaded locations
  • Often grows on nutrient-rich substrates like decomposing wood

Creating the Right Conditions

If you’re hoping to encourage serrate dung moss in your woodland garden, focus on creating the conditions it loves rather than trying to plant it directly:

  • Maintain consistent shade and moisture levels
  • Leave some decaying logs or organic matter in shaded areas
  • Avoid disturbing areas where moss naturally appears
  • Ensure good air circulation while maintaining humidity
  • Be patient – moss establishment takes time

The Bottom Line

Serrate dung moss might not be the showstopper of your garden, but it’s exactly the kind of native species that makes a woodland ecosystem complete. If you’re lucky enough to have this little moss appear naturally in your shaded garden areas, consider it a sign that you’re creating a healthy, balanced environment. And who knows? You might just develop an appreciation for the intricate beauty of these often-overlooked plant pioneers.

Remember, the best gardens aren’t just collections of showy plants – they’re thriving ecosystems where every species, no matter how small, plays its part in the bigger picture.

Serrate Dung Moss

Classification

Group

Moss

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Bryophyta - Mosses

Subdivision

Musci

Class

Bryopsida - True mosses

Subclass

Bryidae

Order

Funariales

Family

Splachnaceae Grev. & Arn.

Genus

Tayloria Hook. - tayloria dung moss

Species

Tayloria serrata (Hedw.) Bruch & Schimp. - serrate dung moss

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