North America Native Plant

Widefruit Sedge

Botanical name: Carex angustata

USDA symbol: CAAN15

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Synonyms: Carex egregia Mack. (CAEG2)  âš˜  Carex eurycarpa T. Holm (CAEU2)  âš˜  Carex eurycarpa T. Holm var. attenuata Kük. (CAEUA)  âš˜  Carex oxycarpa T. Holm (CAOX4)  âš˜  Carex striata Michx. var. erecta (Dewey) C.F. Reed (CASTE6)   

Widefruit Sedge: A Native Gem for Water-Loving Gardens If you’re looking for a low-maintenance native plant that thrives in those tricky wet spots in your garden, meet widefruit sedge (Carex angustata). This unassuming but incredibly useful perennial sedge might just become your new best friend, especially if you’re dealing with ...

Widefruit Sedge: A Native Gem for Water-Loving Gardens

If you’re looking for a low-maintenance native plant that thrives in those tricky wet spots in your garden, meet widefruit sedge (Carex angustata). This unassuming but incredibly useful perennial sedge might just become your new best friend, especially if you’re dealing with boggy areas, rain gardens, or naturally moist soil conditions.

What Makes Widefruit Sedge Special?

Widefruit sedge is a true Pacific Northwest and western mountain native, calling California, Idaho, Montana, Nevada, Oregon, and Washington home. As a member of the sedge family, it’s technically a grass-like plant that forms attractive clumps of narrow, arching foliage that sways gracefully in the breeze.

You might also encounter this plant under its various scientific synonyms, including Carex egregia, Carex eurycarpa, or Carex oxycarpa, but don’t let the name confusion fool you – it’s all the same wonderful plant.

The Good, The Great, and The Gorgeous

Here’s why widefruit sedge deserves a spot in your garden:

  • Native authenticity: Supporting local ecosystems by choosing plants that belong here naturally
  • Water management hero: Excellent for managing seasonal moisture and preventing erosion
  • Low maintenance: Once established, this perennial practically takes care of itself
  • Textural interest: Adds fine, grassy texture that complements broader-leafed plants beautifully
  • Wildlife friendly: Provides habitat and food sources for native wildlife

Where Does Widefruit Sedge Shine?

This sedge is classified as Facultative Wetland in both the Arid West and Western Mountains regions, which means it usually loves wetlands but can tolerate drier conditions occasionally. Think of it as your flexible friend who prefers their feet wet but won’t throw a tantrum if things dry out temporarily.

Perfect spots for widefruit sedge include:

  • Rain gardens and bioswales
  • Pond or stream edges
  • Naturally boggy or seasonally wet areas
  • Wildlife gardens and naturalistic landscapes
  • Erosion-prone slopes with moisture

Growing Widefruit Sedge Successfully

The beauty of native plants like widefruit sedge is that they’re already adapted to your local conditions. Here’s how to help them thrive:

Location and Soil: Choose spots with consistently moist to wet soil. Full sun to partial shade works well, though it tends to be happier with some protection from intense afternoon sun in hotter climates.

Planting: Spring is your best bet for planting. Space plants about 12-18 inches apart if you want them to fill in as groundcover, or give them more room if you prefer individual clumps.

Watering: Keep soil consistently moist, especially during the establishment period. Once established, it can handle some drought but performs best with regular moisture.

Maintenance: Minimal fuss required! You can cut back old foliage in late winter or early spring if desired, but many gardeners leave it for winter interest and wildlife habitat.

Design Ideas and Companions

Widefruit sedge plays well with other moisture-loving natives. Consider pairing it with:

  • Western columbine for colorful blooms
  • Red-osier dogwood for shrub structure
  • Monkey flower for bright yellow accents
  • Various native ferns for different textures

Use it as a living mulch around larger plants, or let it naturalize in drifts for a meadow-like effect.

The Bottom Line

Widefruit sedge may not be the showiest plant in your garden, but it’s definitely one of the most reliable and ecologically valuable. If you have a wet spot that’s been challenging to plant, or if you’re creating habitat for local wildlife, this native sedge could be exactly what you’ve been looking for. Sometimes the best garden plants are the quiet heroes that just get the job done beautifully, year after year.

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

Arid West

FACW

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

Western Mountains, Valleys, and Coast

FACW

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

Widefruit 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 angustata Boott - widefruit sedge

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