North America Native Plant

Wildrye

Botanical name: ×Elyleymus ungavensis

USDA symbol: ELUN2

Life cycle: perennial

Habit: grass

Native status: Native to Canada  

Synonyms: ×Agroelymus ungavensis (Louis-Marie) Lepage (AGUN)   

Wildrye: A Rare Canadian Native Grass Worth Knowing If you’re a devoted native plant enthusiast with a particular fondness for grasses, you might have stumbled across the intriguing ×Elyleymus ungavensis in your botanical adventures. This perennial wildrye is one of Canada’s lesser-known native treasures, and while it’s not exactly what ...

Wildrye: A Rare Canadian Native Grass Worth Knowing

If you’re a devoted native plant enthusiast with a particular fondness for grasses, you might have stumbled across the intriguing ×Elyleymus ungavensis in your botanical adventures. This perennial wildrye is one of Canada’s lesser-known native treasures, and while it’s not exactly what you’d call a garden center staple, it has its own unique place in the world of native landscaping.

What Makes This Wildrye Special?

The × symbol at the beginning of its scientific name is your first clue that this isn’t your average grass – it indicates that this wildrye is actually a hybrid. Sometimes called simply wildrye, ×Elyleymus ungavensis is a perennial grass that belongs to the diverse family of grasses, sedges, and other grass-like plants that form the backbone of many natural ecosystems.

This particular species has earned its place in botanical circles, even having a synonym (×Agroelymus ungavensis) that reflects changing scientific understanding of grass relationships over the years.

Where Does It Call Home?

×Elyleymus ungavensis is proudly Canadian through and through, with its native range centered in Quebec. This northern heritage suggests it’s built for cold climates and the challenging growing conditions that come with Canada’s northern regions.

Should You Grow It in Your Garden?

Here’s where things get interesting – and a bit challenging. While this wildrye is undoubtedly a legitimate native plant with potential ecological value, finding specific information about its growing requirements, appearance, and garden performance is quite difficult. This rarity in cultivation information often indicates that a plant is either:

  • Highly specialized in its natural habitat requirements
  • Not widely available in the nursery trade
  • Better suited to restoration projects than typical home gardens

The Reality of Growing Rare Natives

If you’re determined to work with this particular wildrye, you’ll likely need to connect with specialized native plant societies, botanical gardens, or restoration organizations that work with Quebec’s native flora. The challenge of obtaining seeds or plants, combined with the limited growing information available, makes this more of a project for dedicated native plant collectors than casual gardeners.

Better Alternatives for Most Gardens

Unless you have a specific restoration project in mind or access to this particular species through specialized channels, you might consider other native wildrye species that are more readily available and better documented for garden use. Many regions have their own native wildryes that offer similar ecological benefits with better-understood growing requirements.

The Bigger Picture

While ×Elyleymus ungavensis might not be the easiest addition to your native plant garden, its existence reminds us of the incredible diversity of native grasses that often go unnoticed. These plants play crucial roles in their ecosystems, providing structure, habitat, and food sources for various wildlife species.

If you’re passionate about native grasses, consider starting with more accessible species and working your way up to the rare and unusual ones as your experience and connections in the native plant community grow. Sometimes the most rewarding native plants are the ones that require a bit of detective work and patience to find!

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

×Elyleymus Baum - wildrye

Species

×Elyleymus ungavensis (Louis-Marie) Barkworth [Agropyron latiglume × Elymus mollis] - wildrye

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