North America Native Plant

Wright’s Fabronia Moss

Botanical name: Fabronia ciliaris var. wrightii

USDA symbol: FACIW

Habit: nonvascular

Native status: Native to North America  

Synonyms: Fabronia wrightii Sull. (FAWR)  ⚘  Fabronia wrightii Sull. var. intermedia Grout (FAWRI)   

Wright’s Fabronia Moss: A Rare Native Bryophyte Worth Knowing Meet Wright’s fabronia moss (Fabronia ciliaris var. wrightii), a tiny but fascinating native moss that’s probably living its best life in places you’d never think to look. This little green wonder belongs to the world of bryophytes – those ancient, rootless ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3T4: Status is uncertain but is somewhere between the following rankings: 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. ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 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. ⚘

Wright’s Fabronia Moss: A Rare Native Bryophyte Worth Knowing

Meet Wright’s fabronia moss (Fabronia ciliaris var. wrightii), a tiny but fascinating native moss that’s probably living its best life in places you’d never think to look. This little green wonder belongs to the world of bryophytes – those ancient, rootless plants that have been quietly doing their thing for hundreds of millions of years.

What Exactly Is Wright’s Fabronia Moss?

Wright’s fabronia moss is a specialized variety of moss that’s native to North America. Unlike the mosses you might find carpeting your lawn (much to your possible dismay), this particular species has some pretty specific preferences about where it calls home. It’s what botanists call a terrestrial moss, meaning it grows on land rather than in water, but here’s where it gets interesting – it much prefers to attach itself to rocks, tree bark, or dead wood rather than soil.

You might also see this moss referred to by its scientific synonyms Fabronia wrightii or Fabronia wrightii var. intermedia in older botanical references, but they’re all talking about the same delightful little plant.

Where Does It Call Home?

This moss is a North American native, though specific distribution details are limited due to its specialized nature and the challenges of moss identification in the field. Based on historical collections and botanical records, it appears to have a presence in southwestern regions of the continent.

Is It Rare? Should You Be Excited If You Find It?

Here’s where things get really interesting – Wright’s fabronia moss has a global conservation status that suggests it’s not exactly common. With a ranking that indicates some level of rarity, finding this moss in your garden or local area would be quite special! If you think you’ve spotted it, consider yourself lucky to witness this uncommon native species.

Garden Benefits: Small But Mighty

While this moss might not be the showstopper that catches everyone’s attention from across the yard, it plays some important ecological roles:

  • Helps prevent soil erosion on rocks and wood surfaces
  • Creates microhabitats for tiny insects and other small creatures
  • Adds to the overall biodiversity of your garden ecosystem
  • Provides natural ground cover in challenging spots where other plants struggle

How to Identify Wright’s Fabronia Moss

Identifying specific moss varieties can be tricky business – even botanists sometimes need a hand lens and a good field guide! Wright’s fabronia moss shares the typical characteristics of its genus: it forms small, delicate patches and tends to hug close to whatever surface it’s growing on. You’re most likely to find it attached to:

  • Tree bark, especially on older trees
  • Rocky surfaces
  • Dead wood or fallen logs
  • Stone walls or similar structures

The key thing to remember is that this moss prefers to anchor itself to solid surfaces rather than growing directly in soil like many other mosses do.

Should You Try to Cultivate It?

Given its rarity status, Wright’s fabronia moss isn’t really a species you’d typically cultivate in a traditional sense. Mosses in general are notoriously finicky about their growing conditions, and this particular variety has specific habitat preferences that make it challenging to establish deliberately.

Instead of trying to grow it, your best bet is to create conditions that welcome it naturally:

  • Maintain older trees with interesting bark textures
  • Leave some fallen logs or branches in naturalized areas
  • Avoid excessive use of fungicides or moss-killing products
  • Keep some areas of your landscape a bit wild and undisturbed

A Quiet Conservation Success

If Wright’s fabronia moss does decide to make itself at home in your garden, consider it a sign that you’re doing something right! Its presence indicates a healthy, stable environment with good air quality and minimal disturbance. While you might not have planted it intentionally, you can definitely appreciate it as a native species that’s found your garden worthy of its rare presence.

Sometimes the best gardening victories are the smallest ones – and having a rare native moss choose your space as its home is definitely worth celebrating, even if most of your neighbors will never notice your tiny, remarkable garden resident.

Wright’s Fabronia Moss

Classification

Group

Moss

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Bryophyta - Mosses

Subdivision

Musci

Class

Bryopsida - True mosses

Subclass

Bryidae

Order

Hypnales

Family

Fabroniaceae Schimp.

Genus

Fabronia Raddi - fabronia moss

Species

Fabronia ciliaris (Brid.) Brid. - fabronia moss

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