Native Plants

Shoshone Ricegrass

Piptatheropsis shoshoneana

USDA symbol: PISH2

perennial grass

Lower 48 states: native

If you’re searching for a native grass that combines elegance with resilience, let me introduce you to Shoshone ricegrass (Piptatheropsis shoshoneana). This lesser-known perennial grass might not be the flashiest plant in the garden center, but it’s a true treasure for those who appreciate the subtle beauty of native grasses ...

Shoshone Ricegrass may be listed as rare in your area.
Global Conservation Status

Status: S2S3 | Vulnerable: Found only in a restricted range (even if abundant at some locations). Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals.

Shoshone Ricegrass: A Hidden Gem for Drought-Tolerant Gardens

If you’re searching for a native grass that combines elegance with resilience, let me introduce you to Shoshone ricegrass (Piptatheropsis shoshoneana). This lesser-known perennial grass might not be the flashiest plant in the garden center, but it’s a true treasure for those who appreciate the subtle beauty of native grasses and want to support local ecosystems.

What Makes Shoshone Ricegrass Special?

Shoshone ricegrass is a perennial grass native to the Great Basin region of the western United States. You might also encounter it under its former scientific names, including Stipa shoshoneana or Piptatherum shoshoneanum – botanists love to keep us on our toes with name changes!

This graceful grass naturally occurs in Idaho and Nevada, where it has adapted to some pretty tough growing conditions. It’s perfectly suited to areas with minimal rainfall and intense summer heat, making it an excellent choice for water-wise gardening.

  • Species observed
  • No observations

A Word About Rarity

Important note: Shoshone ricegrass has a conservation status of S2S3, meaning it’s considered rare to uncommon in its native range. If you’re interested in growing this species, please source your plants or seeds only from reputable native plant nurseries that propagate their stock responsibly. Never collect from wild populations.

Why Consider Shoshone Ricegrass for Your Garden?

Here’s what makes this grass worth seeking out:

  • True native: Supporting local ecosystems by choosing plants that naturally belong in your region
  • Drought champion: Once established, it thrives with minimal water
  • Low maintenance: Perfect for gardeners who prefer a hands-off approach
  • Subtle beauty: Offers delicate, feathery seed heads and fine-textured foliage
  • Perennial reliability: Comes back year after year

Where Does It Shine in the Landscape?

Shoshone ricegrass is ideal for:

  • Native plant gardens
  • Xeriscaping projects
  • Naturalized meadow areas
  • Rock gardens with good drainage
  • Slope stabilization (thanks to its grass root system)

It works beautifully as part of a mixed native grass planting or as an accent in more formal drought-tolerant gardens.

Growing Conditions and Care

The good news is that Shoshone ricegrass isn’t fussy – it’s adapted to survive in challenging conditions. Here’s what it needs to thrive:

Sunlight: Full sun is best, though it can tolerate some light shade

Soil: Well-draining soil is essential. It’s not particular about soil type but won’t tolerate soggy conditions

Water: Drought-tolerant once established. Water regularly the first year to help roots establish, then scale back significantly

Climate: Hardy in USDA zones 4-8, making it suitable for areas with cold winters and hot, dry summers

Planting and Establishment Tips

Getting Shoshone ricegrass off to a good start is key to long-term success:

  • Plant in spring after the last frost date
  • Ensure excellent drainage – amend heavy soils with sand or gravel if needed
  • Water consistently the first growing season to establish strong roots
  • Once established (usually by the second year), reduce watering significantly
  • Avoid fertilizing – this grass prefers lean soils

Wildlife and Ecosystem Benefits

While Shoshone ricegrass is wind-pollinated and doesn’t directly attract pollinators like flowering plants do, it still provides valuable ecosystem services. The seeds can provide food for birds and small mammals, and the grass structure offers habitat and cover for various wildlife species.

The Bottom Line

Shoshone ricegrass might not be the easiest plant to find at your local garden center, but it’s worth seeking out from specialty native plant nurseries. Its combination of drought tolerance, native status, and quiet beauty makes it an excellent choice for gardeners looking to create sustainable, water-wise landscapes that support local ecosystems.

Just remember to source responsibly due to its rarity status, and be patient – like many native grasses, it may take a year or two to really show its stuff. But once established, you’ll have a resilient, beautiful grass that’s perfectly at home in your garden and your local ecosystem.

Piptatheropsis shoshoneana is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Piptatheropsis shoshoneana is also known as:

Piptatherum shoshoneanum Peterson & | USDA symbol: PISH
Stipa shoshoneana Curto & Douglass | USDA symbol: STSH3

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Monocot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Monocotyledons
Subclass: Commelinidae
Order: Cyperales
Family: Poaceae Barnhart - Grass family
Genus: Piptatheropsis Romasch., P.M. Peterson & R. J. Soreng - ricegrass

Species: Piptatheropsis shoshoneana (Curto & Douglass M. Hend.) Romasch., P.M. Peterson & R.J. Soreng - Shoshone ricegrass

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