North America Native Plant

Marsupella Bolanderi

Botanical name: Marsupella bolanderi

USDA symbol: MABO7

Habit: nonvascular

Native status: Native to North America  

Marsupella bolanderi: A Tiny Forest Gem Worth Knowing Have you ever noticed those tiny, green, scale-like plants carpeting rocks and fallen logs during your woodland walks? You might have stumbled upon Marsupella bolanderi, a fascinating native liverwort that’s been quietly doing its thing in North American forests for millennia. While ...

Rare plant alert!

Region: Conservation status by state

Status: S2S3: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Marsupella bolanderi: A Tiny Forest Gem Worth Knowing

Have you ever noticed those tiny, green, scale-like plants carpeting rocks and fallen logs during your woodland walks? You might have stumbled upon Marsupella bolanderi, a fascinating native liverwort that’s been quietly doing its thing in North American forests for millennia. While you won’t find this little guy at your local garden center, it’s definitely worth getting to know!

What Exactly Is Marsupella bolanderi?

Marsupella bolanderi is a liverwort – one of those ancient plant groups that includes mosses, hornworts, and their leafy relatives. Think of liverworts as nature’s original ground cover, having been around for over 400 million years. This particular species is native to North America and has earned a somewhat special status with its S2S3 conservation ranking, meaning it’s considered rare to uncommon in its natural habitat.

Unlike the flowering plants we’re used to in our gardens, liverworts don’t produce flowers or seeds. Instead, they reproduce through spores and have a completely different life cycle that’s both simple and remarkably sophisticated.

Where You’ll Find This Forest Dweller

Marsupella bolanderi calls the western regions of North America home, particularly thriving in the Pacific Northwest including California, Oregon, Washington, and British Columbia. It’s perfectly adapted to the cool, moist conditions of these coastal and mountain forests.

Spotting Marsupella bolanderi in the Wild

Here’s what to look for on your next forest adventure:

  • Small, dark green to brownish patches on rocks, logs, or occasionally soil
  • Tiny overlapping leaves arranged in two neat rows, giving it a scaly appearance
  • Low-growing mats that rarely exceed a few inches in diameter
  • Preference for shaded, moist spots in undisturbed forest areas
  • Often found alongside other mosses and liverworts in the same habitat

Is Marsupella bolanderi Beneficial for Your Garden?

While you can’t exactly plant this liverwort in your backyard, it plays some pretty important roles in forest ecosystems that are worth appreciating:

  • Helps prevent soil erosion by forming protective mats on rocks and logs
  • Creates microhabitats for tiny insects and other forest creatures
  • Contributes to nutrient cycling by breaking down slowly over time
  • Indicates healthy forest conditions – its presence is often a sign of good air quality and stable moisture levels

Why You Can’t (and Shouldn’t) Try to Grow It

Here’s the thing about Marsupella bolanderi – it’s not a garden plant, and that’s perfectly okay! This liverwort has very specific needs that are nearly impossible to replicate outside its natural forest habitat. It requires:

  • Consistent moisture without being waterlogged
  • Specific light conditions found in forest understories
  • Natural substrates like weathered rocks or decaying wood
  • Cool temperatures and high humidity

Plus, with its rare status, it’s important to leave these populations undisturbed in their natural homes where they can continue their important ecological work.

Appreciating Nature’s Small Wonders

The next time you’re wandering through a Pacific Northwest forest, take a moment to crouch down and look for the tiny world of Marsupella bolanderi. While it might not have the flashy blooms of garden favorites, this little liverwort represents millions of years of evolutionary success and plays a vital role in keeping our forest ecosystems healthy and balanced.

Sometimes the best way to appreciate native plants is simply to observe and protect them in their natural spaces – and Marsupella bolanderi is a perfect example of nature’s quiet, understated beauty that deserves our respect and admiration.

Marsupella Bolanderi

Classification

Group

Liverwort

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Hepaticophyta - Liverworts

Subdivision

Hepaticae

Class

Hepaticopsida

Subclass

Jungermanniae

Order

Jungermanniales

Family

Gymnomitriaceae H. Klinggr.

Genus

Marsupella Dumort.

Species

Marsupella bolanderi (Austin) Underw.

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