North America Non-native Plant

Elymus Transhyrcanus

Botanical name: Elymus transhyrcanus

USDA symbol: ELTR9

Habit: grass

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

Synonyms: Agropyron leptourum (Nevski) Grossh. (AGLE6)   

Elymus transhyrcanus: The Mysterious Grass That’s More Question Than Answer Ever stumbled across a plant name that sounds like it belongs in an ancient mythology textbook? Meet Elymus transhyrcanus, a grass species that’s about as elusive in the gardening world as a unicorn in your backyard. If you’ve come here ...

Elymus transhyrcanus: The Mysterious Grass That’s More Question Than Answer

Ever stumbled across a plant name that sounds like it belongs in an ancient mythology textbook? Meet Elymus transhyrcanus, a grass species that’s about as elusive in the gardening world as a unicorn in your backyard. If you’ve come here hoping to learn how to grow this particular grass, I’m afraid you’re in for a bit of a mystery tour!

What We Actually Know

Here’s the honest truth: Elymus transhyrcanus is one of those plants that exists more in scientific literature than in anyone’s garden. It belongs to the Elymus genus, which includes various wheatgrasses, and was formerly classified under the name Agropyron leptourum. Like its relatives, it’s a true grass in the Poaceae family.

The species name transhyrcanus gives us a geographical clue – it likely refers to the Trans-Hyrcanian region, suggesting this grass has roots in Central Asian areas. But beyond these taxonomic breadcrumbs, specific information about its native range, appearance, and growing habits remains frustratingly scarce.

The Information Gap

As a gardening enthusiast, you might be wondering why there’s so little practical information available about this grass. Here’s the reality:

  • No documented common names in English
  • Unknown cultivation requirements
  • Unclear hardiness zones
  • No established role in landscape design
  • Limited ecological information

So Should You Try to Grow It?

Unless you’re a botanical researcher or have access to specialized seed collections, Elymus transhyrcanus isn’t likely to end up in your shopping cart anytime soon. The lack of cultivation information makes it a poor choice for typical garden applications.

Better Alternatives for Your Garden

If you’re drawn to native grasses (and you should be!), consider these well-documented alternatives that offer proven garden performance:

  • Native Elymus species like Canada wildrye (Elymus canadensis) or Virginia wildrye (Elymus virginicus)
  • Other native bunch grasses suited to your specific region
  • Local wheatgrasses with established cultivation practices

The Takeaway

Sometimes in the plant world, we encounter species that remain scientific curiosities rather than garden staples. Elymus transhyrcanus appears to be one of those plants – interesting from a taxonomic perspective but lacking the practical cultivation knowledge that makes for successful gardening.

If you’re passionate about native plants (which is fantastic!), focus your energy on well-documented native grasses that will thrive in your garden while supporting local ecosystems. Your plants, pollinators, and patience will thank you for choosing species with clear growing guidelines and proven garden performance.

Elymus Transhyrcanus

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 transhyrcanus (Nevski) Tzvelev

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