North America Native Plant

Fontinalis Moss

Botanical name: Fontinalis hypnoides var. duriaei

USDA symbol: FOHYD

Habit: nonvascular

Native status: Native to North America  

Synonyms: Fontinalis duriaei Schimp. (FODU)  ⚘  Fontinalis nitida Lindb. & Arnell (FONI)  ⚘  Fontinalis subcarinata Cardot (FOSU4)   

Fontinalis Moss: A Hidden Aquatic Gem in North American Waters Ever wondered about those feathery, underwater plants you see swaying gently in streams and ponds? Meet fontinalis moss (Fontinalis hypnoides var. duriaei), a fascinating native North American moss that’s quietly doing important work in our freshwater ecosystems. While you might ...

Fontinalis Moss: A Hidden Aquatic Gem in North American Waters

Ever wondered about those feathery, underwater plants you see swaying gently in streams and ponds? Meet fontinalis moss (Fontinalis hypnoides var. duriaei), a fascinating native North American moss that’s quietly doing important work in our freshwater ecosystems. While you might not think to plant a moss in your garden, understanding this aquatic beauty can help you appreciate the incredible diversity of native plants right in your backyard waterways.

What Exactly Is Fontinalis Moss?

Fontinalis moss belongs to the bryophyte family – those ancient, non-flowering plants that include mosses, liverworts, and hornworts. Unlike the mosses you might see carpeting forest floors, this particular species has adapted to life underwater. It’s a truly aquatic moss that spends its entire life cycle submerged in freshwater environments.

You might also see this moss referred to by its scientific synonyms in older botanical texts: Fontinalis duriaei, Fontinalis nitida, or Fontinalis subcarinata. But don’t let the multiple names confuse you – it’s all the same fascinating plant.

Where to Find This Native Beauty

As a native North American species, fontinalis moss has been quietly thriving in our continent’s waterways long before European settlement. While specific distribution details vary, mosses in the Fontinalis genus are typically found in clean, flowing freshwater throughout much of North America.

How to Identify Fontinalis Moss

Spotting fontinalis moss in the wild is like discovering a secret underwater garden. Here’s what to look for:

  • Feathery, branching stems that sway gracefully with water movement
  • Bright to dark green coloration
  • Always found completely submerged in water
  • Typically attached to rocks, logs, or other solid underwater surfaces
  • Forms dense, cushion-like colonies

Is It Beneficial for Your Garden?

While you won’t be planting fontinalis moss in your traditional flower beds, it can be incredibly beneficial if you have water features on your property. Here’s why this moss is actually a garden hero:

  • Natural water filter: Like a living filtration system, it helps keep water clean by absorbing nutrients and providing oxygen
  • Habitat creator: Fish, amphibians, and aquatic insects use it for shelter and breeding
  • Erosion control: Its root-like structures help stabilize stream banks and pond edges
  • Indicator species: Its presence often indicates healthy, clean water

Creating Moss-Friendly Water Features

If you’re lucky enough to have a natural stream, pond, or even a large water garden, you might encourage fontinalis moss naturally by:

  • Maintaining clean, flowing water
  • Providing solid surfaces like rocks or logs for attachment
  • Avoiding chemical treatments that could harm aquatic life
  • Ensuring good water circulation

A Living Piece of Natural History

Fontinalis moss represents something pretty amazing – it’s a living link to some of Earth’s earliest terrestrial plants. Mosses like this one have been around for over 400 million years, quietly perfecting their simple but effective lifestyle. When you spot fontinalis moss in a stream or pond, you’re looking at a plant that has mastered the art of underwater living long before more complex aquatic plants even existed.

Next time you’re near a clean stream or pond, take a moment to look beneath the surface. You might just spot the gentle, swaying fronds of fontinalis moss – a native North American treasure that’s been quietly keeping our waters healthy for millennia.

Fontinalis Moss

Classification

Group

Moss

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Bryophyta - Mosses

Subdivision

Musci

Class

Bryopsida - True mosses

Subclass

Bryidae

Order

Isobryales

Family

Fontinalaceae Schimp.

Genus

Fontinalis Hedw. - fontinalis moss

Species

Fontinalis hypnoides Hartm. - fontinalis moss

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