North America Native Plant

Parish Wheatgrass

Botanical name: Elymus stebbinsii stebbinsii

USDA symbol: ELSTS2

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Synonyms: Agropyron parishii Scribn. & J.G. Sm. (AGPA7)  âš˜  Elytrigia parishii (Scribn. & J.G. Sm.) D.R. Dewey (ELPA11)   

Parish Wheatgrass: A Rare California Native Worth Knowing If you’re passionate about California native plants, you may have come across Parish wheatgrass (Elymus stebbinsii stebbinsii) in your research. This perennial grass species represents one of those special plants that tells the story of California’s unique botanical heritage, though it comes ...

Rare plant alert!

Region: Conservation status by state

Status: S2S4T2T4: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Subspecies or variety is imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ 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 ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 10,000 individuals ⚘

Parish Wheatgrass: A Rare California Native Worth Knowing

If you’re passionate about California native plants, you may have come across Parish wheatgrass (Elymus stebbinsii stebbinsii) in your research. This perennial grass species represents one of those special plants that tells the story of California’s unique botanical heritage, though it comes with some important considerations for home gardeners.

What Makes Parish Wheatgrass Special

Parish wheatgrass is a true California native, found exclusively within the Golden State’s borders. As a member of the grass family, it displays the characteristic graminoid growth habit – think graceful, grass-like foliage that sways gently in the breeze. You might also encounter this plant listed under its scientific synonyms Agropyron parishii or Elytrigia parishii in older botanical references.

Geographic Distribution and Native Range

This native grass calls California home and only California. Its limited geographic range makes it a true regional specialty, representing the kind of plant that helps define California’s distinctive natural landscapes.

A Word of Caution: Rarity Status

Here’s where things get important for responsible gardeners. Parish wheatgrass carries a Global Conservation Status of S2S4T2T4, which indicates it has conservation concerns. This rarity status means that if you’re interested in growing this species, you should only obtain plants or seeds from reputable, responsibly-sourced suppliers who can verify their material wasn’t collected from wild populations.

Growing Parish Wheatgrass

As a perennial grass native to California, Parish wheatgrass likely thrives in conditions similar to other California native grasses. While specific growing information for this subspecies is limited, you can expect it to prefer:

  • Well-draining soils
  • Low to moderate water requirements once established
  • Full sun to partial shade
  • USDA hardiness zones typical of California (likely zones 8-10)

Landscape Role and Garden Design

Parish wheatgrass would fit beautifully into native plant gardens, restoration projects, or naturalized landscapes that celebrate California’s botanical heritage. As a grass, it provides textural contrast to broadleaf native plants and can serve as a subtle backdrop for more showy flowering species.

Like most grasses, Parish wheatgrass is wind-pollinated rather than insect-pollinated, so while it may not directly attract pollinators, it contributes to the overall ecosystem balance that supports wildlife.

Should You Plant Parish Wheatgrass?

The decision to grow Parish wheatgrass comes down to your commitment to conservation-minded gardening. If you can source it responsibly and you’re passionate about preserving California’s rare native plants, it could be a meaningful addition to your garden. However, given its rarity status and limited availability, you might also consider other California native grasses that can provide similar aesthetic and ecological benefits without conservation concerns.

Whatever you choose, remember that every native plant you grow – whether common or rare – contributes to supporting local ecosystems and preserving California’s natural heritage for future generations.

Parish Wheatgrass

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 stebbinsii Gould - Parish wheatgrass

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