North America Native Plant

Ricegrass

Botanical name: Patis

USDA symbol: PATIS

Life cycle: perennial

Habit: grass

Native status: Native to Canada âš˜ Native to the lower 48 states  

Ricegrass: A Native Perennial Grass Worth Knowing If you’ve stumbled across the name ricegrass in your native plant research, you’ve discovered one of North America’s understated grassland champions. While the botanical information for this particular entry is incomplete (listed simply as Patis), ricegrasses as a group represent some of our ...

Ricegrass: A Native Perennial Grass Worth Knowing

If you’ve stumbled across the name ricegrass in your native plant research, you’ve discovered one of North America’s understated grassland champions. While the botanical information for this particular entry is incomplete (listed simply as Patis), ricegrasses as a group represent some of our most valuable native perennial grasses.

What Makes This Plant Special

This particular ricegrass is a perennial graminoid—that’s botanist-speak for a grass or grass-like plant. It belongs to that wonderful family of plants that includes true grasses, sedges, and rushes. These are the workhorses of natural ecosystems, providing structure, erosion control, and habitat in ways that flashier flowering plants simply can’t match.

Where You’ll Find It Growing Wild

This ricegrass has an impressively wide native range across North America. It calls home to areas spanning from Canada down through much of the eastern and central United States. You can find it growing naturally in:

  • Canadian provinces: Ontario and Quebec
  • Northeastern states: Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont
  • Midwest and Great Lakes: Illinois, Indiana, Iowa, Kentucky, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, Wisconsin
  • Mid-Atlantic: Virginia, West Virginia
  • Southeast: Tennessee

Why Consider Ricegrass for Your Garden

Native grasses like this ricegrass deserve more love in home landscapes. Here’s why you might want to give it a spot in your yard:

  • Low maintenance: As a native perennial, it’s adapted to local conditions and typically requires less water and care once established
  • Ecosystem support: Native grasses provide crucial habitat and food sources for local wildlife
  • Natural beauty: Grasses add movement, texture, and seasonal interest to garden designs
  • Soil health: Deep grass roots help prevent erosion and improve soil structure

A Word of Caution About Plant Identification

Here’s where I need to be honest with you: the botanical information available for this particular plant is incomplete. Patis isn’t a complete scientific name, and without knowing the full genus and species, it’s difficult to provide specific growing advice or detailed characteristics.

If you’re interested in adding native ricegrasses to your landscape, I’d recommend:

  • Consulting with local native plant societies or extension offices
  • Visiting native plant nurseries in your area
  • Looking for properly identified ricegrass species like those in the Oryzopsis or Achnatherum genera

The Bottom Line

While we can’t give you a complete growing guide for this specific Patis ricegrass due to incomplete botanical information, the broader message is clear: native ricegrasses are valuable additions to naturalistic landscapes, rain gardens, and prairie restorations. They’re tough, beautiful in their subtle way, and provide essential ecosystem services.

If you’re drawn to the idea of growing native ricegrass, do a little detective work to properly identify the species that grow naturally in your area. Your local wildlife—and your low-maintenance garden dreams—will thank you for it.

Ricegrass

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

Patis Ohwi - ricegrass

Species

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