North America Native Plant

Howe’s Dicranella Moss

Botanical name: Dicranella howei

USDA symbol: DIHO4

Habit: nonvascular

Native status: Native to North America  

Discovering Howe’s Dicranella Moss: A Tiny Native Wonder Meet Howe’s dicranella moss (Dicranella howei), a small but fascinating native moss that you might already have growing in your garden without even knowing it! This unassuming little bryophyte is one of North America’s quiet contributors to healthy ecosystems, working behind the ...

Discovering Howe’s Dicranella Moss: A Tiny Native Wonder

Meet Howe’s dicranella moss (Dicranella howei), a small but fascinating native moss that you might already have growing in your garden without even knowing it! This unassuming little bryophyte is one of North America’s quiet contributors to healthy ecosystems, working behind the scenes to create the perfect conditions for other plants to thrive.

What Exactly Is Howe’s Dicranella Moss?

Howe’s dicranella moss belongs to the fascinating world of bryophytes – those ancient, resilient plants that have been around for hundreds of millions of years. Unlike the flowering plants we’re used to, this moss doesn’t produce flowers, seeds, or even true roots. Instead, it forms small, green patches or cushions that quietly go about their business of photosynthesis and soil building.

As a native North American species, this moss has evolved alongside our local ecosystems and plays an important role in maintaining ecological balance. It’s what we call a terrestrial moss, meaning it grows on land rather than exclusively in water.

Spotting Howe’s Dicranella Moss in Your Garden

This moss is quite the little escape artist when it comes to identification – it’s small and tends to blend into its surroundings. Here’s what to look for:

  • Small, green patches or cushions growing on soil, rocks, or decaying wood
  • Tiny, thread-like leaves that create a soft, velvety appearance
  • Low-growing habit, usually staying close to the ground
  • Preference for shaded, moist areas of your garden

Is This Moss Beneficial for Your Garden?

Absolutely! While Howe’s dicranella moss might not be the showstopper of your landscape design, it’s working hard as a beneficial ecosystem engineer. Here’s why you should appreciate having it around:

  • Helps prevent soil erosion with its mat-like growth
  • Retains moisture in the soil, creating favorable conditions for other plants
  • Provides habitat for tiny beneficial insects and microorganisms
  • Acts as a natural indicator of healthy, chemical-free soil conditions
  • Adds subtle texture and year-round green color to shaded areas

Where You’re Likely to Find It

Don’t go searching high and low – Howe’s dicranella moss prefers the quiet, understated spots in your garden. Look for it in:

  • Shaded areas under trees or shrubs
  • Along the north sides of buildings or structures
  • On or around rocks, fallen logs, or tree bases
  • Areas that stay consistently moist but not waterlogged
  • Spots where grass struggles to grow due to shade

Creating Moss-Friendly Conditions

If you’d like to encourage more native mosses like Howe’s dicranella moss in your garden, you can create the perfect environment:

  • Reduce foot traffic in potential moss areas
  • Maintain consistent moisture without overwatering
  • Provide dappled shade or morning sun with afternoon shade
  • Avoid using chemical fertilizers or pesticides that can harm moss
  • Leave some areas of your garden wilder and less manicured

The Bottom Line

Howe’s dicranella moss might not be the star of your garden show, but it’s definitely part of the supporting cast that makes everything else possible. This native moss is a sign of a healthy, balanced ecosystem and deserves our appreciation for the quiet work it does. Next time you spot those small green patches in the shaded corners of your garden, take a moment to appreciate these ancient little survivors that have been perfecting their craft for millions of years!

Howe’s Dicranella Moss

Classification

Group

Moss

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Bryophyta - Mosses

Subdivision

Musci

Class

Bryopsida - True mosses

Subclass

Bryidae

Order

Dicranales

Family

Dicranaceae Schimp.

Genus

Dicranella (Müll. Hal.) Schimp. - dicranella moss

Species

Dicranella howei Renauld & Cardot - Howe's dicranella moss

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