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North America Native Plant

Moore’s Brake

Moore’s Brake: A Mysterious Puerto Rican Fern Worth Knowing About If you’ve ever wondered about the hidden botanical treasures of Puerto Rico, let me introduce you to Moore’s brake (Anopteris hexagona), a native fern that’s as intriguing as it is elusive. This perennial fern species calls the beautiful island of ...

Moore’s Brake: A Mysterious Puerto Rican Fern Worth Knowing About

If you’ve ever wondered about the hidden botanical treasures of Puerto Rico, let me introduce you to Moore’s brake (Anopteris hexagona), a native fern that’s as intriguing as it is elusive. This perennial fern species calls the beautiful island of Puerto Rico home, though you won’t find much fanfare about it in your typical gardening guides.

What Exactly Is Moore’s Brake?

Moore’s brake is what botanists classify as a forb – essentially a vascular plant that doesn’t develop significant woody tissue above ground. Think of it as nature’s way of creating a plant that’s sturdy enough to be perennial but flexible enough to adapt to its environment. Unlike the towering trees or shrubby bushes you might be more familiar with, this fern keeps its growing points at or below ground level, which helps it survive and return year after year.

Where You’ll Find This Elusive Fern

Anopteris hexagona is exclusively native to Puerto Rico, making it a true island endemic. This means that in the entire world, you’ll only find this species naturally growing on this Caribbean island.

Is It Beneficial for Gardens?

Here’s where things get a bit mysterious – and honestly, that’s part of what makes Moore’s brake so fascinating! While we know it’s a native Puerto Rican species, detailed information about its specific garden benefits, growing requirements, and ecological role remains surprisingly scarce. This could mean a few things:

  • It might be quite rare in its natural habitat
  • It could be growing in very specific, hard-to-reach locations
  • It simply hasn’t received much attention from researchers or horticulturists yet

As a fern, Moore’s brake doesn’t produce flowers, so it won’t attract pollinators like bees or butterflies. However, many ferns do provide habitat and food sources for other wildlife, though the specific benefits of this species remain undocumented.

How to Identify Moore’s Brake

Unfortunately, detailed identification characteristics for Anopteris hexagona aren’t widely available in popular botanical literature. If you’re exploring Puerto Rico’s natural areas and think you might have spotted this fern, you’d want to consult with local botanists or native plant experts who have experience with the island’s endemic species.

The Bottom Line

Moore’s brake represents one of those wonderful botanical mysteries that remind us how much we still have to learn about our native plant communities. While it might not be the showstopper fern for your garden (assuming you could even find it for sale, which is doubtful), it’s a perfect example of why protecting native habitats is so important.

If you’re gardening in Puerto Rico and want to incorporate native ferns into your landscape, you might have better luck with more well-documented species that local nurseries can provide. Always remember to source plants responsibly and never collect from wild populations, especially when dealing with potentially rare species like Moore’s brake.

Sometimes the most interesting plants are the ones that keep a few secrets, don’t you think?

Moore’s Brake

Classification

Group

Fern

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Pteridophyta - Ferns

Subdivision
Class

Filicopsida

Subclass
Order

Polypodiales

Family

Pteridaceae E.D.M. Kirchn. - Maidenhair Fern family

Genus

Anopteris Prantl ex Diels - anopteris

Species

Anopteris hexagona (L.) C. Chr. - Moore's brake

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