North America Native Plant

Pringe’s Platyhypnidium Moss

Botanical name: Platyhypnidium pringlei

USDA symbol: PLPR6

Habit: nonvascular

Native status: Native to North America  

Synonyms: Eurhynchium pringlei (Cardot) H.A. Crum & L.E. Anderson (EUPR9)  ⚘  Platyhypnidium pringei (Cardot) Broth., database artifact (PLPR5)   

Pringle’s Platyhypnidium Moss: A Rare Native Bryophyte Worth Knowing Meet Pringle’s platyhypnidium moss (Platyhypnidium pringlei), a charming little bryophyte that’s quietly making its home across parts of North America. While you might not be planning to cultivate this particular moss in your garden, understanding what it is and why it ...

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 ⚘

Pringle’s Platyhypnidium Moss: A Rare Native Bryophyte Worth Knowing

Meet Pringle’s platyhypnidium moss (Platyhypnidium pringlei), a charming little bryophyte that’s quietly making its home across parts of North America. While you might not be planning to cultivate this particular moss in your garden, understanding what it is and why it matters can deepen your appreciation for the tiny green worlds that exist right under our noses.

What Exactly Is Pringle’s Platyhypnidium Moss?

This delicate moss belongs to the fascinating world of bryophytes – those ancient, non-vascular plants that include mosses, liverworts, and hornworts. Unlike the flowering plants we typically think of when planning our gardens, Platyhypnidium pringlei reproduces through spores rather than seeds and lacks the root systems we’re familiar with. Instead, it anchors itself to rocks, fallen logs, or other solid surfaces using tiny structures called rhizoids.

As a terrestrial moss, Pringle’s platyhypnidium has a feathery, carpet-like appearance typical of pleurocarpous mosses. Its scientific name honors botanist Cyrus Guernsey Pringle, who collected extensively in Mexico and the southwestern United States during the late 1800s.

Where Does It Call Home?

This moss is native to North America, with its primary range centered in the southwestern United States and extending into Mexico. You’re most likely to encounter it in shaded, rocky areas where moisture levels remain relatively consistent.

A Word About Rarity

Here’s something important to know: Pringle’s platyhypnidium moss has a Global Conservation Status of S2S3, which suggests it may be somewhat rare or vulnerable in parts of its range. This means if you’re lucky enough to spot it in the wild, it’s worth taking a moment to appreciate this special little plant without disturbing it.

Is It Beneficial for Gardens?

While you probably won’t be actively cultivating Platyhypnidium pringlei, mosses in general can be wonderful garden allies. Here’s what mosses bring to the table:

  • Natural soil stabilization and erosion control
  • Moisture retention in the garden ecosystem
  • Habitat for tiny insects and microorganisms
  • Visual interest and texture, especially in woodland or rock gardens
  • Low-maintenance ground cover in challenging spots

If this particular moss happens to appear naturally in your shaded, rocky garden areas, consider yourself lucky! It’s likely thriving because you’ve created conditions that support native plant communities.

How to Identify Pringle’s Platyhypnidium Moss

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

  • Small, feathery growth pattern typical of pleurocarpous mosses
  • Preference for attachment to rocks, logs, or other solid surfaces rather than soil
  • Thrives in shaded, consistently moist environments
  • Found primarily in southwestern regions

For definitive identification, you’d need to examine the moss under magnification and possibly consult with a bryologist or use specialized field guides.

Creating Moss-Friendly Garden Spaces

While you shouldn’t collect rare mosses from the wild, you can create conditions that encourage native mosses to establish naturally:

  • Maintain shaded areas with consistent moisture
  • Provide surfaces like rocks, logs, or stone paths
  • Avoid using chemical fertilizers or pesticides in potential moss areas
  • Keep foot traffic to a minimum in delicate areas

The Bigger Picture

Pringle’s platyhypnidium moss might be small, but it’s part of the intricate web of native species that make our ecosystems function. By learning to recognize and appreciate these often-overlooked plants, we become better stewards of the native plant communities that support local wildlife and maintain healthy landscapes.

Next time you’re walking through a shaded, rocky area in the Southwest, take a moment to look down. You might just spot this rare little moss quietly doing its important work in the world.

Pringe’s Platyhypnidium Moss

Classification

Group

Moss

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Bryophyta - Mosses

Subdivision

Musci

Class

Bryopsida - True mosses

Subclass

Bryidae

Order

Hypnales

Family

Brachytheciaceae Schimp. - Brachythecium moss family

Genus

Platyhypnidium Fleisch. - platyhypnidium moss

Species

Platyhypnidium pringlei (Cardot) Broth. - Pringe's platyhypnidium moss

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