Native Plants

Forked Curlygrass Fern

Schizaea dichotoma var. dichotoma

USDA symbol: SCDID

perennial forb

Pacific Basin excluding Hawaii: native

Meet the forked curlygrass fern (Schizaea dichotoma var. dichotoma), one of nature’s more elusive botanical treasures. This isn’t your typical garden center find – it’s a rare native fern that calls the remote Pacific islands home, and chances are you’ve never encountered one in the wild. The forked curlygrass fern ...

Forked Curlygrass Fern: A Rare Pacific Treasure

Meet the forked curlygrass fern (Schizaea dichotoma var. dichotoma), one of nature’s more elusive botanical treasures. This isn’t your typical garden center find – it’s a rare native fern that calls the remote Pacific islands home, and chances are you’ve never encountered one in the wild.

What Makes This Fern Special?

The forked curlygrass fern belongs to a unique family of ferns that doesn’t quite fit the typical fern mold. Despite being classified in plant databases as a forb due to its growth characteristics, this perennial is indeed a true fern. What sets it apart is its distinctive appearance and incredibly limited range.

Unlike the broad, feathery fronds we associate with most ferns, the forked curlygrass fern lives up to its name with narrow, grass-like foliage that splits into characteristic forked patterns. It’s a small, delicate species that represents an ancient lineage of ferns.

Where Does It Call Home?

This fascinating fern is native to the Pacific Basin, specifically found in Guam and Palau. Its extremely limited geographic distribution makes it a true island endemic – a species that evolved in isolation and exists nowhere else on Earth.

  • Species observed
  • No observations

Why This Matters for Gardeners

While you’re unlikely to find the forked curlygrass fern at your local nursery, understanding rare species like this one helps us appreciate the incredible diversity of plant life on our planet. Here’s why this little fern deserves our attention:

  • Conservation importance: With such a limited range, every population of this species is precious
  • Scientific value: Rare ferns like this help scientists understand plant evolution and adaptation
  • Ecosystem role: Even small, seemingly insignificant plants play important roles in their native ecosystems

Growing Considerations

For the vast majority of gardeners, growing the forked curlygrass fern isn’t a realistic option. Its native habitat suggests it requires:

  • Tropical climate conditions (likely USDA zones 10-12)
  • High humidity and warm temperatures year-round
  • Specialized soil and environmental conditions found in its native Pacific island habitats

If you’re gardening in tropical regions and are interested in rare native ferns, it’s essential to work only with responsibly sourced plant material and conservation organizations. Never collect plants from the wild, especially rare species like this one.

What You Can Do Instead

While you might not be able to grow this particular species, you can still support fern conservation and enjoy these ancient plants in your garden:

  • Choose native fern species appropriate for your region
  • Support conservation organizations working to protect rare plant habitats
  • Create fern-friendly spaces in your garden with appropriate moisture and shade conditions
  • Learn about and appreciate the ferns that do grow in your area

The Bigger Picture

The forked curlygrass fern reminds us that our planet is home to countless species, many of which exist in just a few special places. While we may not all be able to grow every rare plant, we can all play a role in conservation by choosing native plants for our gardens, supporting habitat protection, and fostering appreciation for the natural world’s incredible diversity.

Every garden, no matter how small, can be a sanctuary for native species. By focusing on the plants that belong in our local ecosystems, we create stepping stones for wildlife and help preserve the intricate web of life that makes each region unique.

Classification

Group: Fern
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Division: Pteridophyta - Ferns
Class: Filicopsida
Order: Polypodiales
Family: Schizaeaceae Kaulf. - Curly-grass family
Genus: Schizaea Sm. - curlygrass fern

Species: Schizaea dichotoma (L.) Sm.

Variety: Schizaea dichotoma (L.) Sm. var. dichotoma - forked curlygrass fern

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