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Leersia oryzoides
Leersia oryzoides (L.) Sw.
Rice Cutgrass, Rice Cut Grass
Poaceae (Grass Family)
Synonym(s): Homalocenchrus oryzoides, Phalaris oryzoides
USDA Symbol: LEOR
USDA Native Status: L48 (N), CAN (N)
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.
Plant Characteristics
Duration: PerennialHabit: Grass/Grass-like
Root Type: Fibrous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Venation: Parallel
Fruit Type: Caryopsis
Size Notes: Up to about 5 feet tall.
Leaf: Dark Green
Bloom Information
Bloom Color: GreenBloom Time: Jun , Jul , Aug , Sep , Oct
Distribution
USA: 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 , WYCanada: NB , NS , PE , QC
Native Distribution: Que. to B.C., s. to Gulf Coast states, NM & CA
Native Habitat: Swamps; ditches; shores
Growing Conditions
Water Use: HighLight Requirement: Part Shade
Soil Moisture: Wet
CaCO3 Tolerance: Medium
Aquatic: yes
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.
Benefit
Attracts: Birds , ButterfliesLarval Host: Least Skipper (Ancyloxypha numitor)
Butterflies and Moths of North America (BAMONA)
Least Skipper (Ancyloxypha numitor) ![]() Adult Food Source Larval Host |
Propagation
Commercially Avail: yesFind Seed or Plants
Find seed sources for this species at the Native Seed Network.
National Wetland Indicator Status
Region: | AGCP | AK | AW | CB | EMP | GP | HI | MW | NCNE | WMVE |
Status: | OBL | OBL | OBL | OBL | OBL | OBL | OBL |
From the National Organizations Directory
According 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
Bibliography
Bibref 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 resources
USDA: Find Leersia oryzoides in USDA PlantsFNA: Find Leersia oryzoides in the Flora of North America (if available)
Google: Search Google for Leersia oryzoides
Metadata
Record Modified: 2015-04-16Research By: TWC Staff