North America Non-native Plant

Elymus Donianus

Botanical name: Elymus donianus

USDA symbol: ELDO2

Habit: grass

Native status: Not native but doesn't reproduce and persist in the wild

Synonyms: Agropyron donianum F.B. White (AGDO2)   

Elymus donianus: A Mysterious Native Grass Worth Knowing About Ever stumbled across a plant name that seems to exist in the shadows of the botanical world? Meet Elymus donianus, a grass species that’s more enigma than everyday garden staple. While this member of the Poaceae family (that’s the grass family, ...

Elymus donianus: A Mysterious Native Grass Worth Knowing About

Ever stumbled across a plant name that seems to exist in the shadows of the botanical world? Meet Elymus donianus, a grass species that’s more enigma than everyday garden staple. While this member of the Poaceae family (that’s the grass family, for those keeping track) might not be filling up your local nursery shelves, it’s worth understanding what we do—and don’t—know about this elusive species.

What Exactly Is Elymus donianus?

Elymus donianus belongs to the Elymus genus, commonly known as wildrye grasses. You might also see it listed under its botanical synonym, Agropyron donianum F.B. White—because apparently, even botanists can’t always make up their minds about naming! This grass falls into that broad category of grasses and grass-like plants that includes not just true grasses, but sedges, rushes, and their cousins.

Here’s where things get a bit tricky: unlike many of its better-known relatives, Elymus donianus seems to fly under the radar in most gardening and botanical resources. This could mean it’s either quite rare, regionally specific, or simply hasn’t caught the attention of the gardening world yet.

The Mystery of Its Origins

Unfortunately, detailed information about where Elymus donianus naturally occurs is surprisingly scarce. Without clear data on its native range or distribution, it’s difficult to pinpoint exactly where this grass calls home.

Should You Plant Elymus donianus?

Here’s where we need to pump the brakes a bit. Given the limited information available about this species, including its:

  • Unknown native status
  • Unclear distribution range
  • Undocumented growing requirements
  • Uncertain availability in the nursery trade

It’s challenging to recommend Elymus donianus for most garden situations. This doesn’t mean it’s a bad plant—it just means we don’t know enough to guide you toward success.

Better-Documented Native Grass Alternatives

If you’re drawn to the idea of native grasses (and you should be—they’re fantastic!), consider these well-documented alternatives that offer proven benefits:

  • Little bluestem (Schizachyrium scoparium) – A gorgeous, drought-tolerant prairie grass
  • Buffalo grass (Poaceae dactyloides) – Perfect for low-water lawns
  • Blue grama (Bouteloua gracilis) – Excellent for xeric landscapes
  • Canada wild rye (Elymus canadensis) – A close relative with well-known benefits

If You’re Determined to Learn More

Sometimes the most mysterious plants turn out to be hidden gems. If Elymus donianus has captured your curiosity, here’s what you can do:

  • Contact your local native plant society or botanical garden
  • Reach out to university extension services in your area
  • Connect with regional grass specialists or prairie restoration experts
  • Check with local seed companies that specialize in native species

The Bottom Line

While Elymus donianus remains something of a botanical mystery, that doesn’t diminish the value of native grasses in general. They’re incredible for supporting local ecosystems, providing habitat for wildlife, and creating beautiful, low-maintenance landscapes. Just because this particular species is poorly documented doesn’t mean you should give up on native grasses altogether—quite the opposite!

Sometimes the gardening world is full of plants that exist more in scientific literature than in our actual gardens. Elymus donianus appears to be one of those species. Until more information becomes available, your best bet is to explore the many other wonderful native grasses that are well-documented, readily available, and proven performers in garden settings.

After all, there’s something to be said for choosing plants that come with a roadmap for success rather than a botanical mystery novel!

Elymus Donianus

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

Poaceae Barnhart - Grass family

Genus

Elymus L. - wildrye

Species

Elymus donianus (F.B. White) Á. Löve & D. Löve

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