North America Non-native Plant

Wildrye

Botanical name: Leymus secalinus secalinus

USDA symbol: LESES3

Habit: grass

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

Synonyms: Elymus dasystachys Trin. (ELDA8)   

Wildrye: A Mysterious Grass with Limited Garden Information If you’ve stumbled across the name wildrye (Leymus secalinus secalinus) in your plant research, you’re not alone in finding limited information about this particular grass species. This member of the Poaceae family falls into that category of plants that botanists know exists, ...

Wildrye: A Mysterious Grass with Limited Garden Information

If you’ve stumbled across the name wildrye (Leymus secalinus secalinus) in your plant research, you’re not alone in finding limited information about this particular grass species. This member of the Poaceae family falls into that category of plants that botanists know exists, but gardeners rarely encounter detailed growing guides for.

What We Know About This Wildrye

Leymus secalinus secalinus belongs to the wildrye genus, a group of grasses known for their hardy nature and grass-like appearance. You might also see this plant referenced by its botanical synonym, Elymus dasystachys Trin., in older botanical literature.

As a member of the grass family, this wildrye shares characteristics with other graminoids – those grass-like plants that include true grasses, sedges, rushes, and their relatives. These plants typically form the backbone of many natural ecosystems and can play important structural roles in garden designs.

The Information Gap Challenge

Here’s where things get tricky for gardeners: comprehensive growing information for Leymus secalinus secalinus specifically is quite limited in readily available sources. We don’t have clear data on:

  • Its native range and geographical distribution
  • Specific growing conditions and care requirements
  • USDA hardiness zones
  • Wildlife and pollinator benefits
  • Invasive or native status in various regions
  • Mature size and growth characteristics

Should You Plant This Wildrye?

Without clear information about this plant’s native status, invasive potential, or specific growing requirements, it’s difficult to make a strong recommendation either way. If you’re considering this particular wildrye for your garden, here are some suggestions:

  • Contact your local extension office or native plant society for region-specific information
  • Consider well-documented native grass alternatives that provide similar aesthetic and ecological benefits
  • If you do source this plant, ensure it comes from a reputable nursery that can provide growing guidance

Alternative Native Grasses to Consider

Given the limited information available for Leymus secalinus secalinus, you might want to explore other native grass options that are better documented and easier to grow successfully. Many regions have beautiful native bunch grasses, prairie grasses, or ornamental grasses that can provide similar visual appeal with the added benefit of supporting local ecosystems.

Your local native plant nursery can help you identify grasses that are native to your specific area and have proven track records in garden settings. These alternatives often come with detailed growing guides, established wildlife benefits, and the peace of mind that comes with choosing well-researched plants.

The Bottom Line

While Leymus secalinus secalinus exists in the botanical world, it remains something of an enigma for gardeners. Sometimes the best gardening advice is knowing when to choose a different plant – one with clearer growing requirements and established benefits for both your landscape and local wildlife.

If you’re drawn to the wildrye genus, consider researching other Leymus species that might be better documented for your region, or explore the wonderful world of native grasses that can bring both beauty and ecological value to your garden space.

Wildrye

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

Leymus Hochst. - wildrye

Species

Leymus secalinus (Georgi) Tzvel. - wildrye

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