North America Native Plant

Magrath’s Bulrush

Botanical name: Schoenoplectiella ×magrathii

USDA symbol: SCMA11

Life cycle: annual

Habit: grass

Native status: Native to the lower 48 states  

Magrath’s Bulrush: A Mysterious Native Sedge Worth Knowing About Meet Magrath’s bulrush (Schoenoplectiella ×magrathii), one of those intriguing native plants that keeps botanists on their toes. This graminoid – fancy speak for a grass-like plant – belongs to the sedge family and represents something of a botanical mystery in the ...

Magrath’s Bulrush: A Mysterious Native Sedge Worth Knowing About

Meet Magrath’s bulrush (Schoenoplectiella ×magrathii), one of those intriguing native plants that keeps botanists on their toes. This graminoid – fancy speak for a grass-like plant – belongs to the sedge family and represents something of a botanical mystery in the native plant world.

What Makes This Plant Special?

The × in its scientific name tells us this is a hybrid bulrush, meaning it’s the result of two different bulrush species getting together to create something new. Like many good mysteries, the details about this particular plant are surprisingly scarce, which actually makes it all the more fascinating for native plant enthusiasts who love a good botanical puzzle.

Where Does It Call Home?

Magrath’s bulrush is native to the lower 48 states, with documented populations in Oklahoma. Its limited geographic distribution suggests this might be a quite specialized or rare hybrid that occurs only under specific conditions.

Should You Grow Magrath’s Bulrush?

Here’s where things get interesting – and a bit cautious. While this native sedge would theoretically make a wonderful addition to appropriate gardens, the extreme scarcity of information about it raises some important considerations:

  • Limited availability: You’re unlikely to find this plant at your local nursery
  • Potential rarity: The lack of widespread documentation suggests it may be quite rare
  • Specialized needs: As a hybrid, it may have very specific growing requirements
  • Responsible sourcing concerns: Any planting should only be done with ethically sourced material

Growing Conditions and Care

While specific growing information for Magrath’s bulrush is limited, we can make some educated guesses based on its bulrush relatives. Most bulrush species prefer:

  • Moist to wet conditions
  • Full sun to partial shade
  • Rich, organic soils
  • Wetland or pond edge environments

Given its presence in Oklahoma, it likely tolerates the climate conditions typical of that region, though specific hardiness zones remain undocumented.

A Better Alternative for Most Gardeners

If you’re drawn to the idea of growing native bulrush species, consider these more readily available and well-documented alternatives:

  • Hardstem bulrush (Scirpus acutus)
  • Softstem bulrush (Schoenoplectus tabernaemontani)
  • Dark green bulrush (Scirpus atrovirens)

These species offer similar ecological benefits and aesthetic appeal while being much easier to source responsibly and grow successfully.

The Bottom Line

Magrath’s bulrush represents one of those fascinating native plants that reminds us how much we still have to learn about our local flora. While it’s certainly worth knowing about and appreciating, most gardeners will be better served by choosing more readily available native sedges and bulrushes that can provide similar ecological benefits without the sourcing and rarity concerns.

If you do happen to encounter this species in the wild, consider yourself lucky to witness a botanical rarity – and please leave it undisturbed for others to discover and appreciate.

Magrath’s Bulrush

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

Schoenoplectiella Lye - bulrush

Species

Schoenoplectiella ×magrathii F.M. Sm. & P.M. McKenzie [hallii × saximontana] - Magrath's bulrush

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