Leersia oryzoides (L.) Sw.
Rice Cutgrass, Rice Cut Grass
Poaceae (Grass Family)
Synonym(s): Homalocenchrus oryzoides, Phalaris oryzoides
USDA Symbol: LEOR
Rice cut grass is a 2 1/2-5 ft., prickly-leaved grass. The asymmetrically-shaped inflorescence often stays tucked inside the leaf sheath. Flower clusters stay close to the slightly drooping branches of the perennial grass’ inflorescence.
This is considered a weed in the Southwest. The leaves are sharp-edged, which makes getting caught in a patch of Rice Cutgrass with bare legs is an unpleasant experience.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf: Dark Green
Size Class: 3-6 ft.
Bloom InformationBloom Color: Green
Bloom Time: Jun , Jul , Aug , Sep , Oct
DistributionUSA: AL , AR , AZ , CA , CO , CT , DC , DE , FL , GA , IA , ID , IL , IN , KS , KY , LA , MA , MD , ME , MI , MN , MO , MS , MT , NC , ND , NE , NH , NJ , NM , NV , NY , OH , OK , OR , PA , RI , SC , SD , TN , TX , UT , VA , VT , WA , WI , WV , WY
Canada: NB , NS , PE , QC
Native Distribution: Que. to B.C., s. to Gulf Coast states, NM & CA
Native Habitat: Swamps; ditches; shores
Growing ConditionsWater Use: High
Light Requirement: Part Shade
Soil Moisture: Wet
CaCO3 Tolerance: Medium
Soil Description: Wet soil to standing water.
Conditions Comments: This is considered a "weed" in the Southwest. Getting caught in a patch of rice cut grass with bare legs is an unpleasant experience.
BenefitAttracts: Birds , Butterflies
Larval Host: Least Skipper (Ancyloxypha numitor)
Butterflies and Moths of North America (BAMONA)
Least Skipper |
Learn more at BAMONA
Adult Food Source
PropagationDescription: Not Available
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Delaware Nature Society - Hockessin, DE
Brackenridge Field Laboratory - Austin, TX
Native Seed Network - Corvallis, OR
Herbarium Specimen(s)NPSOT 0968 Collected Oct 6, 1994 in Bexar County by Harry Cliffe
BibliographyBibref 1186 - Field Guide to Moths of Eastern North America (2005) Covell, C.V., Jr.
Bibref 1185 - Field Guide to Western Butterflies (Peterson Field Guides) (1999) Opler, P.A. and A.B. Wright
Search More Titles in Bibliography
Additional resourcesUSDA: Find Leersia oryzoides in USDA Plants
FNA: Find Leersia oryzoides in the Flora of North America (if available)
Google: Search Google for Leersia oryzoides
MetadataRecord Modified: 2015-04-16
Research By: TWC Staff