North America Native Plant

Rolland’s Sedge

Botanical name: Carex ×rollandii

USDA symbol: CARO28

Life cycle: perennial

Habit: grass

Native status: Native to Canada  

Synonyms: Carex ×aquanigra B. Boivin (CAAQ5)   

Rolland’s Sedge: A Rare Canadian Native Worth Knowing About If you’ve stumbled across the name Rolland’s sedge in your native plant research, you’ve discovered one of the more elusive members of the sedge family. Carex ×rollandii is a fascinating hybrid sedge that calls eastern Canada home, though you’re unlikely to ...

Rolland’s Sedge: A Rare Canadian Native Worth Knowing About

If you’ve stumbled across the name Rolland’s sedge in your native plant research, you’ve discovered one of the more elusive members of the sedge family. Carex ×rollandii is a fascinating hybrid sedge that calls eastern Canada home, though you’re unlikely to find it at your local garden center anytime soon.

What Makes Rolland’s Sedge Special?

Rolland’s sedge is what botanists call a hybrid species, indicated by that little × symbol in its scientific name. This perennial sedge represents a natural cross between two parent sedge species, creating something uniquely adapted to its Canadian habitat. Like other sedges, it’s a grass-like plant that belongs to the Cyperaceae family, known for their typically triangular stems and modest but charming appearance.

Where Does It Call Home?

This sedge is native to Canada, with documented populations in Quebec. It’s a true northerner, adapted to the cooler climates and specific growing conditions found in eastern Canadian ecosystems.

The Reality Check for Gardeners

Here’s where things get interesting (and a bit challenging) for home gardeners. Rolland’s sedge appears to be quite rare, with limited information available about its cultivation, specific growing requirements, or availability in the horticultural trade. This scarcity means that even if you’re eager to add this native to your garden, you’re unlikely to find it for sale.

Growing Conditions (What We Can Guess)

Based on its Canadian origins and sedge family traits, Rolland’s sedge likely prefers:

  • Cool, moist conditions
  • Partial shade to full sun
  • Consistently moist to wet soils
  • USDA hardiness zones 2-6 (estimated based on geographic range)

However, without more specific horticultural information, these are educated guesses based on its native habitat and related species.

Better Alternatives for Your Garden

If you’re drawn to the idea of growing native sedges but can’t locate Rolland’s sedge, consider these more readily available alternatives:

  • Pennsylvania sedge (Carex pensylvanica) – excellent for dry shade
  • Bladder sedge (Carex intumescens) – great for wet areas
  • Fox sedge (Carex vulpinoidea) – adaptable and widely available

The Bottom Line

While Rolland’s sedge is undoubtedly a fascinating native plant, its rarity and limited availability make it more of a botanical curiosity than a practical garden choice for most gardeners. If you’re passionate about growing native sedges, focus on the more commonly available species that can provide similar ecological benefits and aesthetic appeal in your landscape.

Sometimes the most responsible thing we can do as gardeners is appreciate rare plants in their natural habitats while choosing more sustainable alternatives for our home gardens. There are plenty of beautiful, readily available native sedges that can bring that same grass-like texture and ecological value to your landscape without the mystery and scarcity surrounding Rolland’s sedge.

Rolland’s 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 ×rollandii Lepage [aquatilis × nigra] - Rolland's sedge

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