North America Native Plant

Riccia Gougetiana

Botanical name: Riccia gougetiana

USDA symbol: RIGO2

Habit: nonvascular

Native status: Native to North America  

Riccia gougetiana: The Mysterious North American Liverwort Have you ever stumbled across tiny, flat green patches growing on rocks or fallen logs and wondered what they might be? You could be looking at a liverwort – and possibly even the elusive Riccia gougetiana, a fascinating little bryophyte that calls North ...

Riccia gougetiana: The Mysterious North American Liverwort

Have you ever stumbled across tiny, flat green patches growing on rocks or fallen logs and wondered what they might be? You could be looking at a liverwort – and possibly even the elusive Riccia gougetiana, a fascinating little bryophyte that calls North America home.

What Exactly Is Riccia gougetiana?

Riccia gougetiana belongs to the world of bryophytes – those humble yet hardy non-flowering plants that include mosses, liverworts, and hornworts. As a liverwort, this species represents some of the earliest land plants on Earth, making them living links to our planet’s ancient past.

Unlike the flowering plants that typically dominate our gardens, liverworts are refreshingly simple. They lack true roots, stems, and leaves, instead growing as flat, ribbon-like structures that hug whatever surface they call home. Riccia gougetiana is herbaceous by nature, meaning it stays soft and green rather than developing woody tissues.

Where You Might Find This Little Wonder

This North American native has a particular fondness for attaching itself to solid surfaces rather than growing directly in soil. You’re most likely to spot it clinging to rocks, bark on living trees, or even decomposing logs – basically anywhere that offers a stable foundation and the right amount of moisture.

Is Riccia gougetiana Good for Your Garden?

Here’s where things get interesting – and a bit mysterious. While we know this liverwort exists as a North American native, specific details about its benefits and characteristics remain largely undocumented in mainstream botanical literature.

However, liverworts in general can offer some subtle benefits to garden ecosystems:

  • They help prevent soil erosion on slopes and rocky areas
  • They create microhabitats for tiny invertebrates
  • They add textural interest to natural garden designs
  • They indicate healthy, unpolluted environments

Identifying Liverworts in Your Landscape

Since Riccia gougetiana appears to be quite rare or specialized, you’re more likely to encounter other liverwort species. Here’s what to look for:

  • Flat, green, ribbon-like or scale-like growth patterns
  • Growth on moist rocks, bark, or soil surfaces
  • No visible flowers or seeds
  • Often found in shaded, humid locations
  • May have small, umbrella-like structures (these are reproductive organs)

The Bottom Line

While Riccia gougetiana remains something of an enigma in the plant world, it serves as a reminder that our native flora includes countless fascinating species beyond the showy wildflowers and towering trees. If you’re lucky enough to encounter any liverwort in your outdoor spaces, consider it a sign of a healthy, balanced ecosystem.

Rather than trying to cultivate these mysterious bryophytes, your best bet is to create conditions where they might naturally appear – maintain some moist, shaded areas with rocks or logs, avoid excessive use of chemicals, and let nature work its quiet magic.

After all, sometimes the most interesting garden residents are the ones that choose us, rather than the ones we choose to plant.

Riccia Gougetiana

Classification

Group

Liverwort

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Hepaticophyta - Liverworts

Subdivision

Hepaticae

Class

Hepaticopsida

Subclass

Marchantiae

Order

Marchantiales

Family

Ricciaceae Rchb.

Genus

Riccia L., nom. cons.

Species

Riccia gougetiana Durieu & Mont.

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