North America Native Plant

Conocephalum Conicum

Botanical name: Conocephalum conicum

USDA symbol: COCO38

Habit: nonvascular

Native status: Native to North America  

Conocephalum conicum: The Snake-Skin Liverwort That’s Quietly Transforming Gardens Meet one of nature’s most underappreciated ground covers – a tiny green carpet that’s been quietly doing its job for millions of years. Conocephalum conicum might not have a catchy common name that rolls off the tongue, but this fascinating liverwort ...

Conocephalum conicum: The Snake-Skin Liverwort That’s Quietly Transforming Gardens

Meet one of nature’s most underappreciated ground covers – a tiny green carpet that’s been quietly doing its job for millions of years. Conocephalum conicum might not have a catchy common name that rolls off the tongue, but this fascinating liverwort (often called snake-skin liverwort) is worth getting to know, especially if you’re looking to create a more natural, low-maintenance landscape.

What Exactly Is Conocephalum conicum?

Before we dive in, let’s clear up what we’re dealing with here. Conocephalum conicum is a liverwort – not a moss, not a fern, but something entirely different. Liverworts are among Earth’s oldest land plants, having been around for about 400 million years. They’re like the wise grandparents of the plant kingdom, and they’ve got some pretty neat tricks up their sleeves.

This particular liverwort is a terrestrial species, meaning it grows on land rather than in water. You’ll typically find it happily attached to rocks, fallen logs, or sometimes even growing directly on soil in shaded, moist areas.

Where Does It Come From?

Conocephalum conicum is native to North America, though it’s also found across Europe and parts of Asia. It’s one of those cosmopolitan species that has managed to make itself at home in suitable habitats across multiple continents. In North America, you can spot it from coast to coast wherever the conditions are right.

How to Identify This Garden Helper

The easiest way to recognize Conocephalum conicum is by its distinctive appearance:

  • Forms flat, ribbon-like green sheets called thalli (think of them as leaves, but not quite)
  • Features a unique snake-skin or honeycomb pattern on the surface
  • Grows in overlapping patches that can spread several inches wide
  • Has a somewhat glossy, smooth appearance when healthy
  • Typically dark to medium green in color

Is It Beneficial in Your Garden?

Absolutely! While Conocephalum conicum won’t attract butterflies or hummingbirds like flowering plants do, it offers several understated benefits:

  • Natural ground cover: Creates living carpets in areas where grass struggles
  • Moisture retention: Helps keep soil moist and prevents erosion
  • Ecosystem indicator: Its presence suggests good air quality and a healthy environment
  • Low maintenance: Once established, it pretty much takes care of itself
  • Year-round interest: Stays green through most seasons in suitable climates

Perfect Garden Spots for Snake-Skin Liverwort

If you’re wondering whether this little ground hugger would work in your space, consider these ideal locations:

  • Shaded rock gardens or stone walls
  • Around water features where there’s consistent moisture
  • Woodland garden settings under trees
  • North-facing slopes that stay cool and damp
  • Areas near downspouts or irrigation systems

Growing Conditions That Make It Happy

Conocephalum conicum thrives in USDA hardiness zones 3-9, making it adaptable to most temperate climates. Here’s what it loves:

  • Light: Partial to full shade (direct sun is usually too harsh)
  • Moisture: Consistent dampness without waterlogging
  • Air circulation: Good airflow prevents fungal issues
  • Surface: Rocky surfaces, fallen logs, or well-draining soil
  • pH: Slightly acidic to neutral conditions

The Bottom Line

While you probably won’t be rushing to your local nursery to specifically seek out Conocephalum conicum (good luck finding it there anyway!), recognizing and appreciating this native liverwort when it appears naturally in your garden is definitely worthwhile. It’s one of those quiet workers that contributes to a healthy, balanced ecosystem without asking for much in return.

If you’re lucky enough to have this snake-skin liverwort establish itself in suitable spots around your property, consider it a sign that you’re doing something right with your natural gardening approach. Just make sure to keep those areas consistently moist and shaded, and your liverwort carpet will likely stick around for years to come.

Conocephalum Conicum

Classification

Group

Liverwort

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Hepaticophyta - Liverworts

Subdivision

Hepaticae

Class

Hepaticopsida

Subclass

Marchantiae

Order

Marchantiales

Family

Conocephalaceae Müll. Frib. ex Grolle

Genus

Conocephalum Hill, nom. cons.

Species

Conocephalum conicum (L.) Dumort.

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