North America Native Plant

Eaton’s Spikemoss

Botanical name: Selaginella eatonii

USDA symbol: SEEA

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Selaginella armata Baker var. eatonii (Hieron. ex Small) B.F. Hansen & Wunderlin (SEARE)   

Eaton’s Spikemoss: A Rare Florida Native Worth Knowing If you’ve ever wondered about those tiny, moss-like plants carpeting certain areas of Florida’s landscape, you might have encountered Eaton’s spikemoss (Selaginella eatonii). This fascinating little native isn’t actually a moss at all – it’s something much more ancient and unique! What ...

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 ⚘

Eaton’s Spikemoss: A Rare Florida Native Worth Knowing

If you’ve ever wondered about those tiny, moss-like plants carpeting certain areas of Florida’s landscape, you might have encountered Eaton’s spikemoss (Selaginella eatonii). This fascinating little native isn’t actually a moss at all – it’s something much more ancient and unique!

What Exactly Is Eaton’s Spikemoss?

Despite its common name, Eaton’s spikemoss belongs to an ancient group of plants called lycopods or spikemosses. These prehistoric survivors have been around for hundreds of millions of years, making them living fossils in your backyard. Unlike true mosses, spikemosses are vascular plants with tiny scale-like leaves that give them their distinctive moss-like appearance.

Selaginella eatonii is technically classified as a forb – a vascular plant without significant woody tissue. It’s a perennial that reproduces through spores rather than seeds or flowers, which makes it quite different from most plants in your garden.

Where to Find This Florida Treasure

This little gem is exclusively native to Florida, making it a true state endemic. You’ll find it naturally occurring in sandy, well-draining soils throughout various habitats in the Sunshine State.

A Word of Caution: Rarity Matters

Here’s something important every gardener should know: Eaton’s spikemoss has a Global Conservation Status of S2S3, indicating it’s quite rare and potentially vulnerable. This means if you’re interested in adding this native beauty to your garden, you should only source it from reputable native plant nurseries that propagate it responsibly. Never harvest it from the wild – let’s keep this Florida treasure thriving in its natural habitat!

Is It Beneficial for Your Garden?

While Eaton’s spikemoss won’t attract pollinators (since it doesn’t produce flowers), it does offer some unique benefits:

  • Provides interesting textural contrast as a ground cover
  • Requires minimal care once established
  • Adds an ancient, prehistoric feel to native plant collections
  • Helps preserve Florida’s botanical heritage
  • Tolerates drought conditions well

How to Identify Eaton’s Spikemoss

Spotting this little native is easier once you know what to look for:

  • Small, scale-like leaves arranged in overlapping patterns
  • Low-growing, carpet-forming habit
  • Moss-like appearance but with more structured, geometric leaf arrangement
  • Typically found in sandy, well-draining locations
  • May appear more vibrant green during Florida’s wet season

Growing Conditions and Care

If you’re fortunate enough to find responsibly sourced Eaton’s spikemoss, it thrives in conditions similar to its natural habitat. It prefers well-draining sandy soils and can handle both partial shade and full sun. Once established, this tough little native is quite drought-tolerant, making it perfect for Florida’s sometimes unpredictable weather patterns.

The best part? It requires virtually no maintenance once it’s happy in its spot. Just avoid overwatering, as soggy conditions can spell trouble for this sand-loving species.

The Bottom Line

Eaton’s spikemoss might not be the showiest plant in your garden, but it’s definitely one of the most interesting from a botanical perspective. If you’re passionate about native Florida plants and want to grow something truly unique, this rare spikemoss could be a wonderful addition – just remember to source it responsibly and give it the well-draining conditions it craves.

Whether you encounter it in the wild or grow it at home, take a moment to appreciate this ancient survivor that’s been quietly thriving in Florida long before any of us called this place home.

Eaton’s Spikemoss

Classification

Group

Lycopod

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Lycopodiophyta - Lycopods

Subdivision
Class

Lycopodiopsida

Subclass
Order

Selaginellales

Family

Selaginellaceae Willk. - Spike-moss family

Genus

Selaginella P. Beauv. - spikemoss

Species

Selaginella eatonii Hieron. ex Small - Eaton's spikemoss

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