North America Native Plant

Florida Eccremidium Moss

Botanical name: Eccremidium floridanum

USDA symbol: ECFL3

Habit: nonvascular

Native status: Native to North America  

Florida Eccremidium Moss: A Critically Rare Native Bryophyte Worth Knowing If you’re passionate about native plants and conservation, you might be curious about some of our continent’s rarest botanical treasures. Enter Florida eccremidium moss (Eccremidium floridanum), one of North America’s most elusive and critically endangered bryophytes. While you probably won’t ...

Rare plant alert!

Region: Conservation status by state

Status: S1?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘

Florida Eccremidium Moss: A Critically Rare Native Bryophyte Worth Knowing

If you’re passionate about native plants and conservation, you might be curious about some of our continent’s rarest botanical treasures. Enter Florida eccremidium moss (Eccremidium floridanum), one of North America’s most elusive and critically endangered bryophytes. While you probably won’t be adding this little green gem to your garden shopping list anytime soon, it’s worth understanding what makes this tiny moss so special.

What Exactly Is Florida Eccremidium Moss?

Florida eccremidium moss belongs to the fascinating world of bryophytes – those ancient, non-flowering plants that include mosses, liverworts, and hornworts. Unlike the towering trees or showy wildflowers we typically think of as plants, this moss is a humble, herbaceous organism that prefers to attach itself to solid surfaces like rocks, tree bark, or decaying wood rather than growing directly in soil.

As a terrestrial species, it’s perfectly adapted to life on land, playing its own small but important role in the ecosystem. Think of it as nature’s green carpet, albeit an incredibly rare one!

Where Does This Rare Moss Call Home?

This moss is native to North America, though specific details about its exact geographical range remain somewhat mysterious – partly because it’s so incredibly rare. The limited information available suggests it has a very restricted distribution, which contributes to its precarious conservation status.

Why Should Gardeners Care About Such a Rare Moss?

Here’s where things get serious: Florida eccremidium moss carries a Global Conservation Status of S1?, meaning it’s critically imperiled. We’re talking about a species with typically five or fewer known occurrences and fewer than 1,000 remaining individuals in the wild. That’s rarer than many endangered mammals!

For gardeners and native plant enthusiasts, this moss represents something important:

  • A reminder of the incredible diversity hiding in plain sight
  • The importance of protecting even the smallest native species
  • A connection to North America’s ancient botanical heritage

Can You Grow Florida Eccremidium Moss in Your Garden?

In short: please don’t try. Given its critically imperiled status, this isn’t a species for home cultivation. Even if you could source it (which would be extremely difficult and potentially harmful to wild populations), we simply don’t have enough information about its specific growing requirements to ensure success.

Instead, consider this approach:

  • Support conservation organizations working to protect rare bryophytes
  • Create moss-friendly conditions in your garden for more common native moss species
  • Learn to identify and appreciate the mosses that do occur naturally in your area

How to Identify This Elusive Species

If you’re incredibly lucky and think you might have spotted Florida eccremidium moss in the wild, you’ll need expert help for positive identification. As a bryophyte, it shares the basic characteristics of mosses: small size, lack of flowers, and a preference for attaching to solid surfaces rather than growing in soil.

However, definitive identification of rare moss species requires microscopic examination and specialized botanical knowledge. If you suspect you’ve found this species, contact your local botanical survey or university botany department immediately – your discovery could be scientifically significant!

Supporting Moss Conservation in Your Own Backyard

While you can’t grow Florida eccremidium moss, you can create a moss-friendly environment that supports other native bryophytes:

  • Maintain areas of consistent moisture and shade
  • Avoid using herbicides or fungicides that might harm delicate moss communities
  • Leave some natural debris like fallen logs or rocks where mosses can establish
  • Participate in citizen science projects that document local moss populations

The Bigger Picture

Florida eccremidium moss might be tiny and incredibly rare, but it represents something much larger: the intricate web of life that makes up North America’s native ecosystems. Every species, no matter how small or seemingly insignificant, plays a role in maintaining the ecological balance we all depend on.

By learning about and respecting critically rare species like this moss, we become better stewards of the natural world – and better gardeners too. After all, the best native gardens are those that work in harmony with the full spectrum of local biodiversity, from the showiest wildflowers down to the humblest mosses.

Florida Eccremidium 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

Eccremidium Wilson - eccremidium moss

Species

Eccremidium floridanum H.A. Crum - Florida eccremidium moss

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