North America Native Plant

Curlygrass Fern

Botanical name: Schizaea

USDA symbol: SCHIZ2

Life cycle: perennial

Habit: forb

Native status: Native to Canada âš˜ Native to Hawaii âš˜ Native to the lower 48 states âš˜ Native to Pacific Basin excluding Hawaii âš˜ Native to Puerto Rico âš˜ Native to St. Pierre and Miquelon  

The Mysterious Curlygrass Fern: Nature’s Delicate Thread Artist Have you ever stumbled upon what looks like tiny green threads scattered across sandy soil and wondered what on earth you were looking at? Meet the curlygrass fern (Schizaea), one of nature’s most unusual and understated performers. Don’t let the name fool ...

The Mysterious Curlygrass Fern: Nature’s Delicate Thread Artist

Have you ever stumbled upon what looks like tiny green threads scattered across sandy soil and wondered what on earth you were looking at? Meet the curlygrass fern (Schizaea), one of nature’s most unusual and understated performers. Don’t let the name fool you – this isn’t actually a grass at all, but a fascinating fern that’s mastered the art of looking like something completely different.

What Exactly Is a Curlygrass Fern?

Curlygrass ferns belong to an ancient group of plants that have been quietly doing their thing for millions of years. These perennial ferns are classified as forbs – vascular plants without significant woody tissue that keep their growing points at or below ground level. Think of them as the minimalist artists of the fern world, creating beauty through simplicity rather than showiness.

Unlike their leafy cousins that unfurl dramatic fronds, curlygrass ferns sport thin, thread-like leaves that can easily be mistaken for grass or even small sedges. Their reproductive structures, called fertile fronds, develop distinctive curly tips that give the plant its common name.

Where You’ll Find These Elusive Beauties

Curlygrass ferns are surprisingly widespread natives, calling home to an impressive range of locations across North America and beyond. They’re native to Canada, the lower 48 United States, Hawaii, Puerto Rico, and various Pacific Basin locations. You can spot them in New Brunswick, Nova Scotia, Delaware, Florida, Hawaii, New Jersey, New York, North Carolina, and Newfoundland, among other places.

Spotting Curlygrass Ferns in the Wild

Identifying curlygrass ferns requires a bit of detective work, as they’re masters of disguise. Here’s what to look for:

  • Thin, wire-like fronds that emerge directly from the ground
  • Thread-like sterile leaves that can reach several inches tall
  • Distinctive fertile fronds with curly, spoon-shaped tips
  • Growth in acidic, sandy, or peaty soils
  • Preference for moist to wet conditions

The key identifier is those characteristic curly fertile fronds – once you see them, you’ll never forget this unique fern’s signature look.

Are Curlygrass Ferns Good for Gardens?

Here’s where things get interesting. While curlygrass ferns are undeniably fascinating from a botanical standpoint, they’re not your typical garden showstoppers. These ferns are incredibly specialized in their habitat requirements, preferring very specific acidic, sandy, and consistently moist conditions that can be challenging to replicate in most home gardens.

For the dedicated fern enthusiast or someone creating a specialized bog garden or naturalistic wetland area, curlygrass ferns could be an intriguing addition. However, they’re definitely not beginner-friendly plants and won’t provide the lush, dramatic foliage that many gardeners seek from ferns.

Their Role in Nature

While curlygrass ferns might not be pollinator magnets (ferns don’t produce flowers, after all), they play important ecological roles in their native habitats. They help stabilize soil in wet areas and provide shelter for small creatures navigating through their delicate fronds. Their presence often indicates healthy, undisturbed wetland ecosystems.

The Bottom Line

Curlygrass ferns are botanical curiosities that deserve appreciation for their unique beauty and ecological importance. While they’re not practical choices for most home gardens, encountering them in their natural habitats is always a special treat. If you’re lucky enough to spot these thread-like treasures during a nature walk, take a moment to appreciate their quiet elegance – they’re living reminders that sometimes the most interesting plants are the ones that don’t try to steal the show.

For gardeners seeking ferns with similar delicate appeal but more forgiving growing requirements, consider native alternatives like maidenhair ferns or small wood ferns that can bring that same sense of natural wonder to your landscape without the specialized care requirements.

Curlygrass Fern

Classification

Group

Fern

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Pteridophyta - Ferns

Subdivision
Class

Filicopsida

Subclass
Order

Polypodiales

Family

Schizaeaceae Kaulf. - Curly-grass family

Genus

Schizaea Sm. - curlygrass fern

Species

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