North America Native Plant

Chiloscyphus Gemmiparus

Botanical name: Chiloscyphus gemmiparus

USDA symbol: CHGE5

Habit: nonvascular

Native status: Native to North America  

Chiloscyphus gemmiparus: A Rare Native Liverwort Worth Knowing If you’ve ever wandered through a moist woodland and noticed tiny, delicate green plants carpeting rocks and fallen logs, you might have encountered one of nature’s most ancient groups of plants: liverworts. Today, we’re diving into the fascinating world of Chiloscyphus gemmiparus, ...

Rare plant alert!

Region: Conservation status by state

Status: S1Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ 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) ⚘

Chiloscyphus gemmiparus: A Rare Native Liverwort Worth Knowing

If you’ve ever wandered through a moist woodland and noticed tiny, delicate green plants carpeting rocks and fallen logs, you might have encountered one of nature’s most ancient groups of plants: liverworts. Today, we’re diving into the fascinating world of Chiloscyphus gemmiparus, a rare native liverwort that’s both a botanical treasure and an indicator of healthy forest ecosystems.

What Exactly Is Chiloscyphus gemmiparus?

Chiloscyphus gemmiparus is a species of leafy liverwort native to North America. Unlike the mosses you might be more familiar with, liverworts are part of an ancient group of non-vascular plants that have been around for over 400 million years. This particular species creates delicate, feathery carpets of overlapping leaves that give it an almost lace-like appearance when viewed up close.

As a terrestrial plant, Chiloscyphus gemmiparus prefers to attach itself to solid surfaces like rocks, fallen logs, or tree bark rather than growing directly in soil. This herbaceous plant stays green year-round in suitable conditions, adding subtle beauty to shaded woodland areas.

Where to Find This Native Beauty

This liverwort calls North America home, with populations primarily found in the northeastern regions of the continent, including parts of Canada and the northeastern United States. It thrives in cool, temperate climates where consistent moisture and shade create ideal growing conditions.

A Word of Caution: Rarity Matters

Before we get too excited about this charming little plant, there’s something important to know: Chiloscyphus gemmiparus has a Global Conservation Status of S1Q, indicating it’s considered rare with some uncertainty about its exact status. This means if you’re lucky enough to spot it in the wild, it’s best to observe and photograph rather than collect.

If you’re interested in encouraging liverworts in your garden, focus on creating the right conditions rather than trying to transplant wild specimens.

Benefits to Your Garden Ecosystem

While Chiloscyphus gemmiparus might not offer the showy blooms that attract pollinators, it provides several subtle but important benefits:

  • Acts as a natural indicator of good air quality and ecosystem health
  • Helps prevent soil erosion on slopes and around tree bases
  • Creates microhabitats for tiny invertebrates
  • Adds year-round green texture to shaded areas
  • Contributes to the overall biodiversity of native plant communities

How to Identify Chiloscyphus gemmiparus

Spotting this liverwort requires a keen eye, as it’s quite small. Here’s what to look for:

  • Delicate, feathery appearance with overlapping leaves
  • Bright to dark green coloration
  • Forms small patches or carpets on rocks, logs, or tree bark
  • Prefers consistently moist, shaded locations
  • Most visible during cool, wet periods

Creating Liverwort-Friendly Conditions

While you shouldn’t collect wild specimens, you can certainly create conditions that might naturally attract liverworts like Chiloscyphus gemmiparus to your property:

  • Maintain consistently moist, shaded areas
  • Avoid using chemicals or fertilizers in woodland areas
  • Leave fallen logs and natural rock formations undisturbed
  • Ensure good air circulation while maintaining humidity
  • Plant native trees and shrubs to create appropriate microclimates

The Bigger Picture

Chiloscyphus gemmiparus might be small, but it represents something much larger: the incredible diversity of native plants that often go unnoticed. These ancient plants have survived for millions of years, adapting to specific environmental conditions and playing crucial roles in their ecosystems.

By learning to recognize and appreciate plants like this rare liverwort, we become better stewards of our native landscapes. Whether you’re managing a large woodland property or simply trying to create more natural spaces in your backyard, understanding the full spectrum of native plant life – from towering trees to tiny liverworts – helps us make more informed decisions about conservation and gardening.

So next time you’re exploring a shaded, moist woodland, take a moment to look closely at those surfaces where tiny green carpets might be growing. You might just be looking at one of nature’s most ancient and resilient plant groups – and if you’re very lucky, you might spot the rare and wonderful Chiloscyphus gemmiparus.

Chiloscyphus Gemmiparus

Classification

Group

Liverwort

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Hepaticophyta - Liverworts

Subdivision

Hepaticae

Class

Hepaticopsida

Subclass

Jungermanniae

Order

Jungermanniales

Family

Geocalycaceae H. Klinggr.

Genus

Chiloscyphus Corda, nom. cons.

Species

Chiloscyphus gemmiparus A. Evans

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