North America Native Plant

Mosquito Beaksedge

Botanical name: Rhynchospora crinipes

USDA symbol: RHCR3

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Mosquito Beaksedge: A Rare Native Sedge Worth Protecting If you’ve never heard of mosquito beaksedge (Rhynchospora crinipes), you’re not alone. This unassuming little sedge is one of those quiet heroes of the plant world – doing important work in southeastern wetlands while flying completely under the radar of most gardeners. ...

Rare plant alert!

Region: Alabama

Status: S2: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘

Region: Alabama

Mosquito Beaksedge: A Rare Native Sedge Worth Protecting

If you’ve never heard of mosquito beaksedge (Rhynchospora crinipes), you’re not alone. This unassuming little sedge is one of those quiet heroes of the plant world – doing important work in southeastern wetlands while flying completely under the radar of most gardeners. But before you start planning where to plant it, there’s something crucial you need to know about this native beauty.

A Plant in Peril

Here’s the thing about mosquito beaksedge: it’s rare. Really rare. This perennial sedge has earned a Global Conservation Status of S2, which means it’s considered imperiled due to extreme rarity. In Alabama, it’s even more precarious with an S1 status. What does this mean for you as a gardener? If you’re lucky enough to find responsibly sourced plants or seeds, you could be helping conserve a species that’s hanging on by a thread.

Where You’ll Find It (If You’re Lucky)

Mosquito beaksedge calls the southeastern United States home, specifically Alabama, Florida, Georgia, Mississippi, North Carolina, and South Carolina. It’s picky about where it lives, sticking to wetland areas where most plants would throw in the towel.

What Does It Look Like?

Don’t expect flashy flowers or dramatic foliage with this one. Mosquito beaksedge is the definition of understated elegance. As a member of the sedge family, it sports narrow, grass-like leaves and produces small, brownish flower clusters that won’t win any beauty contests but serve an important ecological purpose.

The Wetland Specialist

Here’s where things get interesting (and challenging). Mosquito beaksedge has earned Obligate Wetland status in both the Atlantic and Gulf Coastal Plain and Eastern Mountains and Piedmont regions. This fancy designation means it almost always occurs in wetlands – we’re talking consistently soggy, saturated soils that would make most plants pack their bags.

Should You Grow It?

This is where we need to have a heart-to-heart. While mosquito beaksedge is a fascinating native plant that deserves our respect and protection, it’s not for everyone. Here’s why:

  • Specialized needs: It requires wetland conditions that are difficult to replicate in typical home landscapes
  • Rarity concerns: With its imperiled status, sourcing should only be done through responsible propagation programs
  • Limited availability: You’re unlikely to find this at your local nursery
  • Modest appearance: It won’t provide the visual impact most gardeners seek

If You’re Up for the Challenge

Still interested? You might be the perfect candidate if you have:

  • A naturally wet area on your property
  • Experience with wetland restoration
  • Access to responsibly sourced plant material
  • A passion for rare plant conservation

Growing Conditions

Success with mosquito beaksedge requires mimicking its natural wetland habitat:

  • Soil: Consistently moist to wet, saturated conditions
  • Light: Full sun to partial shade
  • Water: Constant moisture – think bog garden or rain garden conditions
  • Climate: Likely hardy in USDA zones 7-10 based on its southeastern range

The Bigger Picture

While mosquito beaksedge might not be the showstopper for your front yard, it plays a crucial role in wetland ecosystems. These specialized plants help stabilize soil, filter water, and provide habitat structure for wildlife. By supporting conservation efforts and responsible cultivation of rare natives like this one, gardeners can play a part in preserving our botanical heritage.

Alternative Options

If you’re drawn to the idea of native sedges but mosquito beaksedge isn’t practical for your situation, consider more common wetland sedges that can provide similar ecological benefits without the rarity concerns. Your local native plant society can point you toward appropriate alternatives for your region.

Mosquito beaksedge reminds us that not every plant needs to be a garden superstar to be supremely valuable. Sometimes the quiet ones working behind the scenes deserve our attention and protection the most.

Mosquito 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 crinipes Gale - mosquito beaksedge

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