North America Native Plant

Philonotis Moss

Botanical name: Philonotis yezoana

USDA symbol: PHYE

Habit: nonvascular

Native status: Native to North America  

Synonyms: Philonotis fontana (Hedw.) Brid. var. seriata (Mitt.) Kindb. (PHFOS2)   

Philonotis Moss: A Rare Native Moss Worth Knowing Meet Philonotis moss (Philonotis yezoana), a fascinating little native moss that’s quietly making its mark in North American ecosystems. While you might not have heard of this particular species, it’s one of those understated garden residents that deserves a closer look – ...

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 ⚘

Philonotis Moss: A Rare Native Moss Worth Knowing

Meet Philonotis moss (Philonotis yezoana), a fascinating little native moss that’s quietly making its mark in North American ecosystems. While you might not have heard of this particular species, it’s one of those understated garden residents that deserves a closer look – especially if you’re interested in supporting native biodiversity in your landscape.

What Exactly Is Philonotis Moss?

Philonotis moss belongs to that wonderful world of bryophytes – those ancient, non-flowering plants that have been around far longer than the flashy blooms we typically associate with gardening. This particular species is a terrestrial moss, meaning it grows on land rather than floating in water, though it definitely appreciates moisture.

Like other mosses, Philonotis yezoana is herbaceous and has a knack for attaching itself to solid surfaces. You’ll often find mosses like this one clinging to rocks, fallen logs, or even the bark of living trees rather than rooting directly in soil like traditional garden plants.

Where Does This Moss Call Home?

Philonotis moss is native to North America, though specific details about its exact range remain somewhat mysterious. This adds to its intrigue – and also highlights why responsible sourcing is so important if you’re considering adding it to your landscape.

A Word About Rarity

Here’s something important to know: Philonotis yezoana carries a Global Conservation Status of S2S3, which puts it in a category of concern regarding its population stability. This means that while it’s not critically endangered, it’s not exactly common either. If you’re thinking about incorporating this moss into your garden, please make sure you source it responsibly from reputable native plant suppliers rather than harvesting it from the wild.

Why Consider Moss in Your Garden?

You might wonder why anyone would want moss in their landscape, but these humble plants offer some surprising benefits:

  • They help prevent soil erosion
  • They create habitat for tiny beneficial insects and other small creatures
  • They add year-round green texture to shaded areas where other plants struggle
  • They require virtually no maintenance once established
  • They help retain moisture in the soil

Identifying Philonotis Moss

Identifying specific moss species can be tricky without a hand lens and some serious botanical knowledge. However, Philonotis mosses generally form small, upright tufts with pointed leaves arranged in a somewhat spiral pattern around the stems. The plants are typically bright to dark green and prefer moist, shaded locations.

If you think you’ve spotted this species in the wild, take photos and notes about the location and growing conditions, but resist the urge to collect it given its conservation status.

Creating Moss-Friendly Conditions

While we don’t have extensive cultivation information specifically for Philonotis yezoana, most mosses in this family appreciate similar conditions:

  • Consistent moisture (but not waterlogged conditions)
  • Partial to full shade
  • Good air circulation
  • Surfaces like rocks, logs, or compacted soil to attach to
  • Protection from heavy foot traffic

The Bottom Line

Philonotis moss represents the often-overlooked diversity of our native plant communities. While it might not provide the dramatic color of a native wildflower meadow, it plays an important role in creating healthy, functioning ecosystems. If you’re interested in supporting native biodiversity and have appropriate growing conditions, consider reaching out to native plant societies or specialized suppliers who might be able to help you source this species responsibly.

Remember, sometimes the smallest plants make the biggest difference in creating sustainable, wildlife-friendly landscapes. And there’s something rather magical about having an ancient lineage of plants quietly thriving in your own backyard.

Philonotis Moss

Classification

Group

Moss

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Bryophyta - Mosses

Subdivision

Musci

Class

Bryopsida - True mosses

Subclass

Bryidae

Order

Bryales

Family

Bartramiaceae Schwägr.

Genus

Philonotis Brid. - philonotis moss

Species

Philonotis yezoana Besch. & Cardot - philonotis moss

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