North America Native Plant

Soldier Beaksedge

Botanical name: Rhynchospora tenerrima

USDA symbol: RHTE3

Life cycle: annual

Habit: grass

Native status: Native to Puerto Rico  

Synonyms: Rhynchospora setacea (P.J. Bergius) Boeckeler (RHSE2)   

Soldier Beaksedge: A Native Puerto Rican Sedge for Wetland Gardens Meet soldier beaksedge (Rhynchospora tenerrima), a charming native sedge that calls Puerto Rico home. While this little-known grass-like plant might not be on every gardener’s radar, it offers unique opportunities for those interested in native wetland gardening and supporting local ...

Soldier Beaksedge: A Native Puerto Rican Sedge for Wetland Gardens

Meet soldier beaksedge (Rhynchospora tenerrima), a charming native sedge that calls Puerto Rico home. While this little-known grass-like plant might not be on every gardener’s radar, it offers unique opportunities for those interested in native wetland gardening and supporting local ecosystems.

What is Soldier Beaksedge?

Soldier beaksedge is an annual sedge belonging to the Cyperaceae family. Like other sedges, it’s a grass-like plant that plays an important ecological role in its native habitat. You might also see it listed under its botanical synonym, Rhynchospora setacea, in older botanical references.

As an annual plant, soldier beaksedge completes its entire life cycle within one growing season, setting seed before dying back naturally. This characteristic makes it quite different from the perennial sedges many gardeners are familiar with.

Where Does It Grow?

This sedge is exclusively native to Puerto Rico, making it a true island endemic. Its limited natural range makes it a special addition to Puerto Rican native plant gardens and restoration projects.

Wetland Lover

Soldier beaksedge has a facultative wetland status in the Caribbean region, meaning it usually grows in wetland conditions but can occasionally be found in drier spots. This flexibility makes it potentially useful for:

  • Rain gardens and bioswales
  • Pond margins and water feature edges
  • Areas with seasonal flooding
  • Native wetland restoration projects

Should You Grow It?

Here’s where things get a bit tricky. While soldier beaksedge is undoubtedly an interesting native species, there’s limited information available about its cultivation requirements, appearance, and garden performance. This lack of horticultural information means growing it successfully might require some experimentation.

However, if you’re a Puerto Rican gardener passionate about native plants or involved in wetland restoration, soldier beaksedge could be worth seeking out. As a native species, it likely provides some ecological benefits to local wildlife, even if the specific details aren’t well documented.

Growing Challenges

The biggest challenge with soldier beaksedge is the lack of readily available growing information. Details about preferred soil types, sun exposure, spacing, and care requirements aren’t well established in horticultural literature. Additionally, as a lesser-known native species, finding seeds or plants for purchase may prove difficult.

The Bottom Line

Soldier beaksedge represents the kind of native plant that dedicated native gardeners and restoration enthusiasts might find intriguing, despite the cultivation mysteries it presents. If you’re in Puerto Rico and committed to growing only native species, this sedge could be a worthwhile addition to wetland areas of your property.

For most gardeners, however, better-known native sedges with established cultivation guidelines might be more practical choices. Consider exploring other native Puerto Rican wetland plants that offer similar ecological benefits with more reliable growing information.

If you do decide to experiment with soldier beaksedge, approach it as a learning adventure rather than expecting guaranteed results. Sometimes the most rewarding gardening experiences come from working with nature’s lesser-known treasures.

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

FACW

Facultative Wetland - Plants with this status usually occurs in wetlands but may occur in non-wetlands

Soldier Beaksedge

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

Rhynchospora Vahl - beaksedge

Species

Rhynchospora tenerrima Nees ex Spreng. - soldier beaksedge

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