North America Native Plant

Densetuft Hairsedge

Botanical name: Bulbostylis antillana

USDA symbol: BUAN

Life cycle: annual

Habit: grass

Native status: Native to Puerto Rico  

Synonyms: Bulbostylis capillaris (L.) Kunth ex C.B. Clarke ssp. antillana (Britton) T. Koyama (BUCAA)   

Densetuft Hairsedge: A Lesser-Known Native Sedge Worth Discovering If you’re looking to add some authentic Caribbean flair to your garden while supporting local ecosystems, you might want to get acquainted with densetuft hairsedge (Bulbostylis antillana). This modest little sedge may not be the showiest plant in the garden center, but ...

Densetuft Hairsedge: A Lesser-Known Native Sedge Worth Discovering

If you’re looking to add some authentic Caribbean flair to your garden while supporting local ecosystems, you might want to get acquainted with densetuft hairsedge (Bulbostylis antillana). This modest little sedge may not be the showiest plant in the garden center, but it has something special going for it—it’s a true native of Puerto Rico and the Caribbean region.

What Exactly Is Densetuft Hairsedge?

Densetuft hairsedge is an annual sedge that belongs to the large and diverse sedge family. Think of it as a grass-like plant that forms small, dense tufts—hence the densetuft part of its common name. Unlike true grasses, sedges have triangular stems and different flower structures, though most people won’t notice the difference at first glance.

You might also see this plant listed under its synonym Bulbostylis capillaris subspecies antillana in some older references, but Bulbostylis antillana is the currently accepted name.

Where Does It Call Home?

This charming little sedge is native to Puerto Rico, where it has been quietly doing its thing in various habitats for who knows how long. As a true native species, it’s perfectly adapted to the local climate and growing conditions of the Caribbean region.

The Native Plant Advantage

Here’s why you might want to consider adding densetuft hairsedge to your garden: native plants are like the ultimate locals—they know exactly how to thrive in their home environment without needing a lot of fuss or resources. They’ve co-evolved with local wildlife, potentially providing food and habitat that non-native plants simply can’t match.

Plus, there’s something satisfying about growing plants that truly belong in your landscape rather than exotic imports that might need constant babying.

Growing Conditions and Adaptability

One thing we do know about densetuft hairsedge is that it has a facultative wetland status in the Caribbean region. This means it’s quite the flexible little plant—it can handle both wet and dry conditions, making it potentially useful in various garden situations.

As an annual, you can expect it to complete its entire life cycle in one growing season, from seed to flower to seed again. This can actually be an advantage in some garden designs where you want seasonal interest or natural reseeding.

The Reality Check

Here’s the honest truth: detailed growing information for Bulbostylis antillana is surprisingly scarce in popular gardening literature. This probably means it’s not widely cultivated commercially, which can make it both a challenge and an adventure to grow.

If you’re interested in trying this plant, you might need to:

  • Source seeds from native plant societies or specialized native plant nurseries
  • Experiment with growing conditions based on its facultative wetland status
  • Be prepared for some trial and error in cultivation
  • Connect with local botanists or native plant groups for growing tips

Is It Right for Your Garden?

Densetuft hairsedge might be perfect for you if you’re:

  • Passionate about growing true native species
  • Interested in supporting local ecosystems and wildlife
  • Looking for plants that can handle variable moisture conditions
  • Willing to experiment with less common native plants
  • Creating a naturalistic or restoration-style landscape

It might not be the best choice if you’re looking for flashy ornamental appeal or plants with well-documented cultivation requirements.

The Bottom Line

Densetuft hairsedge represents the kind of native plant that deserves more attention—not because it’s particularly showy or easy to grow, but because it’s authentically local and potentially valuable for supporting native ecosystems. While we may not have all the cultivation details figured out yet, that’s part of what makes growing native plants an ongoing adventure.

If you decide to give it a try, you’ll be joining the ranks of gardeners who are helping to preserve and celebrate the unique plant heritage of Puerto Rico and the Caribbean. And who knows? You might just discover something wonderful about this unassuming little sedge along the way.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Caribbean

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Densetuft 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 antillana (Britton) Fernald - densetuft hairsedge

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