North America Native Plant

West Indian Hairsedge

Botanical name: Bulbostylis curassavica

USDA symbol: BUCU

Life cycle: annual

Habit: grass

Native status: Native to Navassa Island âš˜ Native to Puerto Rico  

Synonyms: Fimbristylis curassavica (Britton) Alain (FICU)  âš˜  Stenophyllus curassavicus Britton (STCU7)   

West Indian Hairsedge: A Delicate Caribbean Native Worth Knowing If you’re gardening in Puerto Rico or happen to find yourself landscaping on the tiny Navassa Island, you might want to get acquainted with West Indian hairsedge (Bulbostylis curassavica). This petite annual sedge might not win any flashy flower contests, but ...

West Indian Hairsedge: A Delicate Caribbean Native Worth Knowing

If you’re gardening in Puerto Rico or happen to find yourself landscaping on the tiny Navassa Island, you might want to get acquainted with West Indian hairsedge (Bulbostylis curassavica). This petite annual sedge might not win any flashy flower contests, but it’s got its own quiet charm and plays an important role in Caribbean ecosystems.

What Exactly Is West Indian Hairsedge?

West Indian hairsedge is a small, grass-like annual plant that belongs to the sedge family. Don’t let the name fool you though – despite being called hairsedge, it’s not actually a grass. Like other sedges, it has that distinctive triangular stem that botanists love to point out with the old saying sedges have edges.

You might also see this plant listed under its former scientific names, including Fimbristylis curassavica or Stenophyllus curassavicus, if you’re digging through older botanical references.

Where Does It Call Home?

This little sedge is quite the homebody, native only to Puerto Rico and Navassa Island in the Caribbean. Its limited range makes it a true regional specialty – you won’t find it growing wild anywhere else in the world.

Should You Grow West Indian Hairsedge?

Here’s the thing about West Indian hairsedge – it’s really only suitable for gardeners in its native range. If you’re gardening in Puerto Rico, this native plant could be a wonderful addition to your landscape for several reasons:

  • It’s perfectly adapted to local growing conditions
  • Supports the native ecosystem you’re part of
  • Requires minimal care once established
  • Adds authentic local character to naturalistic plantings

However, if you’re gardening anywhere outside of Puerto Rico or Navassa Island, this isn’t the plant for you. Its very specific native range means it’s not appropriate for cultivation elsewhere, and you’d be better served choosing sedges native to your own region.

Growing West Indian Hairsedge Successfully

For those lucky enough to garden within its native range, West Indian hairsedge is refreshingly low-maintenance:

Growing Conditions

  • Climate: USDA zones 10-11 (tropical and subtropical)
  • Soil: Sandy soils work best, mimicking its natural coastal habitat
  • Light: Full sun to partial shade
  • Water: Drought tolerant once established

Planting and Care Tips

As an annual, West Indian hairsedge completes its entire life cycle in one growing season. The good news? It often self-seeds, so you might not need to replant it every year. Simply allow some plants to go to seed at the end of the growing season, and you’ll likely see new seedlings pop up the following year.

This sedge thrives with minimal intervention – just plant it in well-draining sandy soil and let it do its thing. Over-watering or over-fertilizing can actually harm it, as it’s adapted to lean, coastal conditions.

The Role in Your Landscape

West Indian hairsedge works beautifully in naturalistic plantings where you want to recreate native Caribbean plant communities. Its fine, hair-like texture provides a nice contrast to broader-leafed plants and adds movement in the breeze. Think of it as nature’s own ornamental grass – subtle, elegant, and perfectly at home in coastal garden settings.

Wildlife and Ecosystem Benefits

While this sedge is wind-pollinated (so it won’t attract butterflies and bees like flowering plants), it still provides value to the local ecosystem. Its seeds can provide food for small birds, and its presence helps maintain the plant diversity that healthy ecosystems depend on.

The Bottom Line

West Indian hairsedge is one of those plants that perfectly embodies the right plant, right place philosophy. If you’re gardening in Puerto Rico and want to include more native species in your landscape, this unassuming little sedge deserves consideration. It’s easy to grow, ecologically appropriate, and adds authentic local character to any planting.

Just remember – this is very much a regional specialty. Gardeners elsewhere should seek out the native sedges of their own areas to get similar benefits while supporting their local ecosystems.

West Indian Hairsedge

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Cyperaceae Juss. - Sedge family

Genus

Bulbostylis Kunth - hairsedge

Species

Bulbostylis curassavica (Britton) Britton ex Kük. - West Indian hairsedge

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