North America Native Plant

Schofield’s Ctenidium Moss

Botanical name: Ctenidium schofieldii

USDA symbol: CTSC

Habit: nonvascular

Native status: Native to North America  

Discovering Schofield’s Ctenidium Moss: A Rare North American Bryophyte Have you ever noticed tiny, intricate green carpets growing on rocks or fallen logs during your garden walks? You might have stumbled upon one of nature’s most overlooked treasures: moss. Today, we’re diving into the fascinating world of Schofield’s ctenidium moss ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4: Status is uncertain but is somewhere between the following rankings: 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 ⚘ 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 ⚘

Discovering Schofield’s Ctenidium Moss: A Rare North American Bryophyte

Have you ever noticed tiny, intricate green carpets growing on rocks or fallen logs during your garden walks? You might have stumbled upon one of nature’s most overlooked treasures: moss. Today, we’re diving into the fascinating world of Schofield’s ctenidium moss (Ctenidium schofieldii), a rare North American native that’s more special than you might think.

What Exactly Is Schofield’s Ctenidium Moss?

Schofield’s ctenidium moss belongs to the bryophyte family – those amazing little green plants that include mosses, liverworts, and hornworts. Unlike the flashy flowering plants in your garden, this moss is a quiet achiever that’s been perfecting its survival strategy for millions of years.

This particular moss is what botanists call terrestrial, meaning it grows on land rather than in water. But here’s where it gets interesting: instead of rooting in soil like most plants we’re familiar with, Schofield’s ctenidium moss prefers to attach itself to solid surfaces like rocks, tree bark, or even that old wooden fence you’ve been meaning to replace.

Where Does It Call Home?

This moss is a true North American native, though specific details about its exact range remain something of a botanical mystery. Like many specialized moss species, it likely has particular habitat preferences that limit where it naturally occurs.

Is This Moss Rare? (Spoiler Alert: Yes!)

Here’s where things get serious for a moment. Schofield’s ctenidium moss has a Global Conservation Status of S3S4, which puts it in the rare to uncommon category. This means it’s not something you’ll stumble across on every nature walk, and it deserves our respect and protection.

If you’re lucky enough to spot this moss in the wild, resist the urge to collect it. Rare species like this need to stay where they are to maintain healthy populations.

Could This Moss Benefit Your Garden?

While we don’t have specific information about this particular moss’s garden benefits, mosses in general are fantastic additions to natural landscapes. They:

  • Help prevent soil erosion
  • Create habitat for tiny creatures
  • Add year-round green color to shady spots
  • Require no fertilizers, pesticides, or frequent watering
  • Contribute to the overall ecosystem health of your garden

How to Spot Schofield’s Ctenidium Moss

Identifying specific moss species can be tricky, even for experts! Schofield’s ctenidium moss, like other mosses, will appear as small, green, leaf-like structures growing in patches or cushions. You’ll typically find it growing on:

  • Rock surfaces
  • Tree bark
  • Fallen logs
  • Other solid, non-soil surfaces

For positive identification, you’d need a hand lens and probably a bryophyte expert, as many moss species look remarkably similar to the untrained eye.

The Bottom Line for Gardeners

While you shouldn’t try to cultivate Schofield’s ctenidium moss due to its rarity, you can definitely appreciate and protect any mosses that naturally appear in your garden. These tiny plants are indicators of healthy, balanced ecosystems and deserve a place in our appreciation of native flora.

If you’re interested in encouraging mosses in your garden, focus on creating the conditions they love: shady, moist areas with minimal disturbance. Who knows? You might create the perfect habitat for various moss species to call your garden home.

Remember, every small plant – even the tiniest moss – plays a role in our complex natural world. The next time you see moss growing in your garden, take a moment to appreciate these ancient, resilient little survivors that have been quietly doing their job long before humans started gardening.

Schofield’s Ctenidium Moss

Classification

Group

Moss

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Bryophyta - Mosses

Subdivision

Musci

Class

Bryopsida - True mosses

Subclass

Bryidae

Order

Hypnales

Family

Hypnaceae Schimp.

Genus

Ctenidium (Schimp.) Mitt. - ctenidium moss

Species

Ctenidium schofieldii Nish. - Schofield's ctenidium moss

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