North America Native Plant

Trematodon Moss

Botanical name: Trematodon brevicollis

USDA symbol: TRBR11

Habit: nonvascular

Native status: Native to North America  

Trematodon Moss: A Tiny Native Wonder for Your Garden Meet Trematodon brevicollis, better known as trematodon moss – one of those delightfully tiny native plants that most gardeners walk right past without a second glance. But here’s the thing: this unassuming little moss might just be the perfect addition to ...

Trematodon Moss: A Tiny Native Wonder for Your Garden

Meet Trematodon brevicollis, better known as trematodon moss – one of those delightfully tiny native plants that most gardeners walk right past without a second glance. But here’s the thing: this unassuming little moss might just be the perfect addition to your garden, especially if you’re looking to create a more natural, woodland-style landscape.

What Exactly Is Trematodon Moss?

Trematodon moss is a small, terrestrial bryophyte – that’s just a fancy way of saying it’s part of the moss family. Like all mosses, it’s an ancient type of plant that’s been around far longer than most of the flowering plants we’re familiar with. This particular species is native to North America, making it a fantastic choice for gardeners who want to support local ecosystems.

Unlike your typical garden plants, trematodon moss doesn’t have true roots, stems, or leaves in the traditional sense. Instead, it has simple structures that perform similar functions, and it reproduces through spores rather than seeds or flowers.

Where You’ll Find This Native Gem

Trematodon brevicollis calls North America home, thriving in the temperate regions across the continent. You might already have some growing naturally in your yard without even knowing it!

Why Your Garden Might Love Trematodon Moss

While this moss won’t give you showy blooms or dramatic foliage, it offers some pretty special benefits:

  • Provides natural ground cover in challenging spots where other plants struggle
  • Helps prevent soil erosion on slopes and bare patches
  • Creates habitat for tiny beneficial creatures
  • Adds authentic woodland character to naturalized areas
  • Requires virtually no maintenance once established

Perfect Spots for Trematodon Moss

This moss is happiest in woodland gardens, rock gardens, and other naturalized spaces where it can do its thing undisturbed. It particularly loves:

  • Shaded areas with consistent moisture
  • Spots with good air circulation
  • Areas around rocks, logs, or other solid surfaces where it can attach
  • Woodland pathways and understory plantings

How to Spot Trematodon Moss

Identifying trematodon moss takes a keen eye since it’s quite small and unassuming. Look for low-growing, green patches that form thin mats or cushions on soil, rocks, or decaying wood. The individual plants are tiny, and you’ll often find them growing alongside other moss species in mixed communities.

The best way to encourage this native moss in your garden is simply to create the right conditions – moist, shaded areas with minimal foot traffic. If you’re lucky enough to spot it growing naturally in your yard, resist the urge to tidy up those areas. Sometimes the best gardening involves knowing when to let nature take the lead.

A Small Plant with Big Impact

While trematodon moss might not be the star of your garden show, it’s one of those humble native plants that quietly does important work. It helps create the kind of authentic, sustainable landscape that supports local wildlife while requiring almost nothing from you in return. In a world of high-maintenance garden divas, sometimes it’s nice to have a plant that’s perfectly content to just be itself.

Trematodon Moss

Classification

Group

Moss

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Bryophyta - Mosses

Subdivision

Musci

Class

Bryopsida - True mosses

Subclass

Bryidae

Order

Dicranales

Family

Bruchiaceae Schimp.

Genus

Trematodon Michx. - trematodon moss

Species

Trematodon brevicollis Hoppe & Hornsch. ex Hornsch. - trematodon moss

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