North America Native Plant

Ditrichum Moss

Botanical name: Ditrichum zonatum var. scabrifolium

USDA symbol: DIZOS

Habit: nonvascular

Native status: Native to North America  

Ditrichum Moss: A Tiny Native Wonder in Your Garden Have you ever noticed those tiny, delicate green carpets growing on rocks or old wood in your yard? You might be looking at ditrichum moss (Ditrichum zonatum var. scabrifolium), a fascinating little bryophyte that’s been quietly calling North America home for ...

Rare plant alert!

Region: Conservation status by state

Status: S3S5T2T3: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is 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) ⚘ Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘ Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Ditrichum Moss: A Tiny Native Wonder in Your Garden

Have you ever noticed those tiny, delicate green carpets growing on rocks or old wood in your yard? You might be looking at ditrichum moss (Ditrichum zonatum var. scabrifolium), a fascinating little bryophyte that’s been quietly calling North America home for ages.

What Exactly Is Ditrichum Moss?

Ditrichum moss is what botanists call a bryophyte – essentially a non-flowering plant that includes mosses, liverworts, and hornworts. Think of it as one of nature’s original ground covers, way before humans started designing landscapes! This particular variety is a terrestrial species, meaning it grows on land rather than in water, and it has a quirky habit of attaching itself to solid surfaces like rocks, dead wood, or even living tree bark rather than settling into soil like most plants we’re familiar with.

Where You’ll Find This Native Beauty

As a North American native, ditrichum moss has been part of our continent’s ecosystems long before European settlers arrived. While specific distribution details for this variety aren’t widely documented, it’s part of a larger family of mosses that have adapted to various climates across the region.

Is It Good for Your Garden?

Here’s where things get interesting! While ditrichum moss isn’t something you’d typically plant intentionally, it can actually be quite beneficial if it shows up naturally in your landscape:

  • It helps prevent soil erosion on slopes and rocky areas
  • Creates habitat for tiny insects and other small creatures
  • Adds texture and natural beauty to rock gardens or woodland areas
  • Requires absolutely zero maintenance once established
  • Helps retain moisture in the soil beneath it

How to Identify Ditrichum Moss

Spotting this little moss takes a keen eye, since it’s quite small. Look for:

  • Tiny, thread-like green shoots growing in small patches
  • Growth on rocks, logs, or bark rather than directly in soil
  • A somewhat scruffy or rough appearance (that scabrifolium part of its name actually refers to its roughish leaves)
  • Dense, low-growing mats that feel slightly coarse to the touch

A Word About Rarity

It’s worth noting that this particular variety has a conservation status that suggests it may not be super common everywhere. If you’re lucky enough to spot it in your garden, consider yourself fortunate to be hosting this interesting native species!

Should You Encourage It?

If ditrichum moss appears naturally in your landscape, there’s really no reason to remove it unless it’s interfering with something specific you’re trying to grow. In fact, embracing these tiny native volunteers can add authenticity and ecological value to your garden. Just remember – mosses like this one aren’t really planted in the traditional sense, but rather encouraged by creating the right conditions and leaving them be when they show up on their own.

The next time you’re wandering around your yard, take a closer look at those little green patches on rocks and logs. You might just be admiring one of North America’s understated native treasures!

Ditrichum Moss

Classification

Group

Moss

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Bryophyta - Mosses

Subdivision

Musci

Class

Bryopsida - True mosses

Subclass

Bryidae

Order

Dicranales

Family

Ditrichaceae Limpr.

Genus

Ditrichum Hampe - ditrichum moss

Species

Ditrichum zonatum (Brid.) Kindb. - ditrichum moss

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