North America Native Plant

Sedge

Botanical name: Carex ×stenolepis

USDA symbol: CAST55

Life cycle: perennial

Habit: grass

Native status: Native to Canada âš˜ Native to the lower 48 states âš˜ Native to St. Pierre and Miquelon  

Synonyms: Carex ×anticostensis (Fernald) Lepage (CAAN16)  âš˜  Carex ×anticostensis (Fernald) Lepage var. inflatior Lepage (pro nm.) (CAANI)  âš˜  Carex ×anticostensis (Fernald) Lepage var. longidens Lepage (pro nm.) (CAANL)  âš˜  Carex ×anticostensis (Fernald) Lepage var. minor Lepage (pro nm.) (CAANM2)  âš˜  Carex grahamii Boott. (CAGR38)  âš˜  Carex mainensis Porter ex Britton (CAMA55)  âš˜  Carex rostrata Stokes var. anticostensis Fernald (CAROA3)   

Discovering the Elusive Sedge: A Native Wetland Wonder If you’re a gardener who loves the road less traveled, let me introduce you to a botanical mystery that might just capture your imagination. Carex ×stenolepis is one of those plants that keeps botanists on their toes and gardeners guessing. This native ...

Discovering the Elusive Sedge: A Native Wetland Wonder

If you’re a gardener who loves the road less traveled, let me introduce you to a botanical mystery that might just capture your imagination. Carex ×stenolepis is one of those plants that keeps botanists on their toes and gardeners guessing. This native sedge is like the quiet kid in class who turns out to be surprisingly fascinating once you get to know them.

What Exactly Is This Sedge?

Carex ×stenolepis goes by the simple common name sedge, though it’s far from ordinary. The little × symbol in its scientific name is your first clue that this isn’t your typical plant – it’s actually a natural hybrid. Think of it as nature’s own plant breeding experiment, created when two sedge species decided to get together and create something entirely new.

This perennial grass-like plant belongs to the sedge family, and like its cousins, it’s got that distinctive triangular stem that sedge enthusiasts love to identify. While it may look like grass to the untrained eye, sedges have their own unique charm and ecological importance.

Where Does It Call Home?

This native beauty has quite the northern address. You’ll find Carex ×stenolepis naturally occurring across parts of Canada and the northeastern United States. Its range includes New Brunswick, Nova Scotia, Ontario, Quebec, Maine, and extends into Labrador and Newfoundland. It’s also native to St. Pierre and Miquelon, making it a true child of the North Atlantic region.

The Wetland Connection

Here’s where things get interesting for gardeners. This sedge has what botanists call a facultative wetland status in the Northcentral and Northeast regions. In plain English, that means it’s flexible – it can handle both wet and moderately dry conditions. Think of it as the adaptable friend who’s equally happy at a pool party or a hiking trip.

Should You Grow This Mysterious Sedge?

Now here’s the thing – Carex ×stenolepis is something of an enigma in the gardening world. Because it’s a natural hybrid and relatively uncommon, there’s limited information available about its specific growing requirements and garden performance. This makes it both intriguing and challenging for the home gardener.

Growing Conditions (What We Know)

Based on its wetland status and natural habitat, this sedge likely prefers:

  • Consistently moist to wet soil conditions
  • Cool, northern climates
  • Partial shade to full sun
  • Acidic to neutral soil pH

Garden Applications

If you’re lucky enough to source this rare sedge, it would likely shine in:

  • Rain gardens and bioswales
  • Pond margins and water features
  • Native plant gardens
  • Naturalized wetland areas
  • Bog or marsh gardens

The Reality Check

Let’s be honest – finding Carex ×stenolepis for your garden might be like searching for a needle in a haystack. Its hybrid nature and limited distribution mean it’s rarely available in the nursery trade. If conservation and supporting native ecosystems is your goal, you might want to consider more readily available native sedges that can provide similar ecological benefits.

Alternative Native Sedges to Consider

If the idea of growing a native sedge appeals to you, but Carex ×stenolepis proves elusive, consider these more available alternatives:

  • Carex pensylvanica (Pennsylvania Sedge)
  • Carex vulpinoidea (Fox Sedge)
  • Carex stricta (Tussock Sedge)
  • Carex comosa (Longhair Sedge)

The Bottom Line

Carex ×stenolepis represents the fascinating complexity of our native plant world. While it may not be the easiest sedge to grow or find, it reminds us that there are still botanical mysteries waiting to be explored, even in our own backyards. Whether you manage to track down this elusive hybrid or choose a more available native sedge cousin, you’ll be supporting local ecosystems and adding unique texture to your garden.

Sometimes the most rewarding plants are the ones that make us work a little harder to understand and appreciate them. This mysterious sedge certainly fits that bill.

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

Northcentral & Northeast

FAC

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

Sedge

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

Carex L. - sedge

Species

Carex ×stenolepis Less. [saxatilis × vesicaria] - sedge

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