North America Native Plant

Scapania Massalongi

Botanical name: Scapania massalongi

USDA symbol: SCMA13

Habit: nonvascular

Native status: Native to North America  

Discovering Scapania massalongi: A Tiny Native Liverwort Worth Knowing Ever stumbled across something green and leafy growing on a rock or fallen log and wondered what it might be? You might have encountered Scapania massalongi, a fascinating little liverwort that’s quietly doing its thing in North American ecosystems. While this ...

Rare plant alert!

Region: Conservation status by state

Status: S3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ 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 ⚘

Discovering Scapania massalongi: A Tiny Native Liverwort Worth Knowing

Ever stumbled across something green and leafy growing on a rock or fallen log and wondered what it might be? You might have encountered Scapania massalongi, a fascinating little liverwort that’s quietly doing its thing in North American ecosystems. While this tiny plant doesn’t have a catchy common name that rolls off the tongue, it’s definitely worth getting to know!

What Exactly Is Scapania massalongi?

Let’s start with the basics: Scapania massalongi is a liverwort, which puts it in a pretty exclusive club of ancient plants that have been around for hundreds of millions of years. Think of liverworts as the distant cousins of mosses – they’re both small, green, and love hanging out in damp, shady spots. But unlike the mosses you might be familiar with, liverworts like our friend Scapania have a distinctly flat, leafy appearance.

This particular species is a native North American plant, which means it belongs here and has been part of our ecosystems long before any of us started thinking about landscaping. As a terrestrial species, you’ll typically find it growing on rocks, fallen logs, or other solid surfaces rather than directly in soil.

Where Can You Find It?

Scapania massalongi calls North America home, though the exact details of its range aren’t widely documented in common field guides. Like many liverworts, it tends to prefer quiet, undisturbed spots where it can go about its business without much fuss.

Is It Good for Your Garden?

Here’s where things get interesting. Scapania massalongi isn’t something you’ll find at your local garden center, and that’s perfectly fine! This little liverwort isn’t typically cultivated as a garden plant, but that doesn’t mean it’s not valuable. If you’re lucky enough to have it show up naturally in your landscape, consider yourself fortunate to be hosting a piece of ancient plant history.

While it won’t attract butterflies or hummingbirds like flowering plants do, liverworts like Scapania massalongi play important ecological roles:

  • They help prevent erosion by forming small mats on surfaces
  • They create tiny microhabitats for even smaller creatures
  • They contribute to the overall biodiversity of your space
  • They indicate healthy, relatively undisturbed environments

A Word About Conservation

It’s worth noting that Scapania massalongi has a conservation status that suggests it may be somewhat uncommon or poorly documented. This makes it even more special if you encounter it in the wild! The best approach is to simply appreciate it where you find it rather than attempting to collect or transplant it.

How to Identify Scapania massalongi

Identifying specific liverwort species can be tricky, even for experts, but here are some general characteristics to look for:

  • Small, flat, green plant growing on rocks, logs, or bark
  • Leafy appearance with a somewhat flattened growth pattern
  • Typically found in shaded, humid environments
  • Forms small patches or colonies rather than growing as individual plants

If you think you’ve spotted Scapania massalongi or another liverwort species, consider taking photos and reaching out to local botanists or naturalist groups – they’d probably love to help with identification!

Living with Liverworts

The beauty of plants like Scapania massalongi is that they ask for absolutely nothing from us gardeners. They don’t need watering, fertilizing, or pruning. They simply exist, doing their quiet work of being part of the intricate web of life in our landscapes.

If you discover liverworts in your garden, the best thing you can do is leave them be. They’re indicators of a healthy, balanced environment, and their presence suggests that your space is supporting a diverse range of plant life – even the tiny, ancient kinds that most people never notice.

So the next time you’re wandering around your garden or hiking through a forest, take a moment to look for these little green pioneers. While Scapania massalongi might not be the showstopper in your landscape, it’s certainly a fascinating reminder of just how diverse and wonderful the plant kingdom really is!

Scapania Massalongi

Classification

Group

Liverwort

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Hepaticophyta - Liverworts

Subdivision

Hepaticae

Class

Hepaticopsida

Subclass

Jungermanniae

Order

Jungermanniales

Family

Scapaniaceae Mig.

Genus

Scapania (Dumort.) Dumort., nom. cons.

Species

Scapania massalongi (Müll. Frib.) Müll. Frib.

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