North America Native Plant

Sierra Wildrye

Botanical name: Elymus sierrus

USDA symbol: ELSI11

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Synonyms: Agropyron gmelinii (Ledeb.) Scribn. & J.G. Sm. var. pringlei Scribn. & J.G. Sm. (AGGMP)  âš˜  Agropyron pringlei (Scribn. & J.G. Sm.) Hitchc., non Elymus pringlei Scribn. & Merr. (AGPR)  âš˜  Elymus sierrae Gould, orth. var. (ELSI4)   

Sierra Wildrye: A Native Grass Worth Getting to Know If you’re looking to add authentic Western character to your landscape, Sierra wildrye (Elymus sierrus) might just be the native grass you’ve been searching for. This perennial beauty brings the wild spirit of the Sierra Nevada right to your backyard, though ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Sierra Wildrye: A Native Grass Worth Getting to Know

If you’re looking to add authentic Western character to your landscape, Sierra wildrye (Elymus sierrus) might just be the native grass you’ve been searching for. This perennial beauty brings the wild spirit of the Sierra Nevada right to your backyard, though it comes with a few considerations that responsible gardeners should know about.

What Is Sierra Wildrye?

Sierra wildrye is a native perennial grass that calls California and Nevada home. As its name suggests, this hardy plant has adapted to life in some of the most spectacular mountain landscapes in North America. It’s part of the large wildrye family, known for their distinctive seed heads and ability to thrive in challenging conditions.

You might occasionally see this grass listed under other scientific names in older references, including Agropyron pringlei or Elymus sierrae, but Elymus sierrus is the currently accepted botanical name.

Where Does Sierra Wildrye Grow?

This native grass has a relatively limited natural range, growing primarily in California and Nevada. Its distribution follows the mountainous regions where it has evolved to handle the unique climate challenges of these areas.

A Note About Conservation

Before we dive into growing tips, there’s something important to discuss. Sierra wildrye has a conservation status that suggests it may face some challenges in the wild. If you’re interested in growing this grass, please make sure to source your plants or seeds from reputable native plant nurseries that practice responsible collection methods. Never collect from wild populations.

Why Consider Sierra Wildrye for Your Garden?

This native grass offers several appealing qualities for the right landscape:

  • Authentic regional character: Few plants capture the essence of Western mountain landscapes quite like native wildrye grasses
  • Low maintenance: Once established, native grasses typically require minimal care
  • Drought tolerance: Like many native Western plants, it’s adapted to survive with minimal water
  • Wildlife habitat: Native grasses provide important habitat and food sources for local wildlife

Where Sierra Wildrye Shines

This grass works best in naturalistic landscapes that celebrate the beauty of native plant communities. Consider Sierra wildrye for:

  • Native plant gardens
  • Wildlife habitat restoration projects
  • Erosion control on slopes
  • Low-water mountain-style landscapes

Growing Conditions

While specific growing requirements for Sierra wildrye aren’t extensively documented, we can make educated assumptions based on its native habitat and the needs of related wildrye grasses:

  • Sun exposure: Likely prefers full sun to partial shade
  • Soil: Probably adaptable to various soil types, as long as drainage is adequate
  • Water: Drought-tolerant once established, typical of mountain-adapted plants
  • Climate: Hardy in areas with conditions similar to its native California and Nevada range

Planting and Care Tips

Since Sierra wildrye isn’t commonly available in the nursery trade, growing it successfully requires some patience and planning:

  • Start with seeds: You’re more likely to find seeds than plants, and native grasses often establish better from seed anyway
  • Time it right: Fall planting often works best for native grasses in Western climates
  • Be patient: Native grasses can be slow to establish, but they’re worth the wait
  • Minimal fertilization: Native plants typically don’t need rich soils and may actually perform poorly with too much fertilizer

The Bottom Line

Sierra wildrye is a grass for the dedicated native plant gardener who values authenticity and conservation. While it may not be the easiest plant to find or grow, it offers something special: a genuine connection to the wild landscapes of the Sierra Nevada. If you can source it responsibly and provide appropriate growing conditions, this native grass can be a meaningful addition to wildlife-friendly, low-water landscapes.

Just remember to respect its conservation status and always choose responsibly sourced material. Your garden – and the local ecosystem – will benefit from this thoughtful approach to native gardening.

Sierra 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

Elymus L. - wildrye

Species

Elymus sierrus Gould - Sierra wildrye

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