Leersia oryzoides

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Distribution Map: Based on vouchered plant specimens from wild populations. Cultivated occurrences are not mapped. View county names by placing the cursor over the map.

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Family:	POACEAE
Species:	Leersia oryzoides (L.)Sw.
Common Name:	RICE CUTGRASS
Status:	Native, OBL (DEP), OBL (NWPL)
Specimen:	View details of USF Herbarium specimens

** Not applicable or data not available.

Classification

Division
Class
Sub Class
Order	POALES
Family	POACEAE
Genus	Leersia
Species	Leersia oryzoides (L.)Sw. - RICE CUTGRASS

Citation

Citation	LEERSIA ORYZOIDES (Linnaeus) Swartz, Prodr. 21. 1788.
Basionym:	Phalaris oryzoides Linnaeus 1753.
Type:	VIRGINIA: Without data (lectotype: LINN 78.10). Lectotypified by Hitchcock, Contr. U.S. Natl. Herb. 12: 115. 1908.

** Not applicable or data not available.

Source

County	Herbaria	Literature Citation (If Applicable)
Alachua	FLAS
Calhoun	USF
Escambia	FLAS
Franklin	FSU
Gadsden	FSU
Holmes	FSU
Jackson	USF
Liberty	FSU
Okaloosa	FLAS
Santa Rosa	USF
Wakulla	USF
Washington	USF

Synonyms

– Denotes synonyms that are applicable to the state. Show these synonyms only

Synonym	Full Citation	Basionym	Type
Asprella oryzoides	Asprella oryzoides (Linnaeus) Schreber, Gen. Pl. 45. 1789.	BASIONYM: Phalaris oryzoides Linnaeus 1753.
Ehrhartia clandestina	Ehrhartia clandestina Weber, in F. H. Wiggers, Fl. Prim. Holsat. 63. 1780, nom. illegit.	BASIONYM: Phalaris oryzoides Linnaeus 1753.
Homalocenchrus oryzoides	Homalocenchrus oryzoides (Linnaeus) Haller, Mieg ex Pollich, Hist. Pl. Palat. 2: 201. 1776.	BASIONYM: Phalaris oryzoides Linnaeus 1753.
Laertia oryzoides	Laertia oryzoides (Linnaeus) Gromov ex Trautvetter, Trudy Imp. S.-Peterburgsk. Bot. Sada 9: 354. 1884.	BASIONYM: Phalaris oryzoides Linnaeus 1753.
Oryza clandestina	Oryza clandestina A. Braun, in Ascherson, Fl. Brandenburg 799. 1864, nom. illegit.	BASIONYM: Ehrhartia clandestina Weber 1780, nom. illegit.; Phalaris oryzoides Linnaeus 1753.
Oryza oryzoides	Oryza oryzoides (Linnaeus) Dalla Torre & Sarntheim, Fl. Tirol. 6(1): 142. 1906.	BASIONYM: Phalaris oryzoides Linnaeus 1753.
Phalaris oryzoides	Phalaris oryzoides Linnaeus, Sp. Pl. 55. 1753.		TYPE: VIRGINIA: Without data (lectotype: LINN 78.10). Lectotypified by Hitchcock, Contr. U.S. Natl. Herb. 12: 115. 1908.
Leersia oryzoides forma clandestina	Leersia oryzoides (Linnaeus) Swartz, forma clandestina Eames, Rhodora 18: 239. 1916.		TYPE: CONNECTICUT: Fairfield Co.: Stratford, 6 Oct 1901, Eames 600 (holotype: GH?).
Leersia oryzoides forma glabra	Leersia oryzoides (Linnaeus) Swartz, forma glabra A. A. Eaton, Rhodora 5: 118. 1903.		TYPE: MASSACHUSETTS: Essex Co.: Tidal shores of the Merrimac River near "the laurels" in the W part of Newburyport, Sep 1902, Eaton et al. s.n. (holotype: GH?).
Leersia oryzoides forma inclusa	Leersia oryzoides (Linnaeus) Swartz, forma inclusa (Wiesbaur ex Baenitz) Doerfler, Herb. Nor., Schedae 46: 164. 1904; Fogg, Rhodora 30: 84. 1928.	BASIONYM: Oryza clandestina (Weber) A. Braun, forma inclusa Wiesbaur ex Baenitz 1897.
Oryza clandestina forma inclusa	Oryza clandestina (Weber) A. Braun, forma inclusa Wiesbaur ex Baenitz, Deutsche Bot. Monatsschr. 15: 19. 1897.		TYPE: HUNGARY:
Oryza clandestina forma patens	Oryza clandestina (Weber) A. Braun, forma patens Wiesbaur ex Baenitz, Deutsche Bot. Monatsschr. 15: 19. 1897.

Specimens

Country	State	County	Date	Specimen	Notes
USA	Florida	Jackson Co.	15 Oct 1958	H. L. Monoson 27
USA	Florida	Santa Rosa Co.	01 Jun 1982	G. Wilhelm 10193
USA	Florida	Calhoun Co.	03 Jul 2007	T. MacClendon 622
USA	Florida	Wakulla Co.	08 May 1965	R. K. Godfrey 65807
USA	Florida	Jackson Co.	08 Oct 2001	K. Francl 266
USA	Florida	Jackson Co.	27 Sep 1957	R. Kral 5911
USA	Georgia	Fulton Co.	05 Oct 1963	P. O. Schallert 1711
USA	Tennessee	Cocke Co.	03 Aug 1977	P. Genelle 3032
USA	North Carolina	Macon Co.	24 Aug 1966	J. R. Bozeman 7777
USA	Alabama	Madison Co.	30 Sep 2001	D. E. Giannasi 160
USA	Louisiana	Ouachita Par.	11 Jul 1983	D. D. Taylor 4166
USA	Tennessee	White Co.	21 Sep 1979	T. S. Patrick 2084
USA	Alabama	Cleburne Co.	28 Sep 1982	M. G. Bussey 483
USA	South Carolina	Richland Co.	26 Sep 1980	C. A. Aulbach-Smith 1252
USA	Georgia	Oglethorpe Co.	23 Oct 1967	D. Blake 276
USA	North Carolina	Ashe Co.	01 Aug 1958	A. E. Radford 38561
USA	South Carolina	Jasper Co.	27 Sep 1959	G. R. Swank 440
USA	Florida	Washington Co.	18 May 2016	W. D. Longbottom 24896
USA	Virginia		14 May 1974	L. J. Musselman 4706
Canada	Ontario		10 Oct 1962	A. G. Walker s.n.
USA	New York	Albany Co.	11 Aug 1954	N. H. Russell 8115428
USA	Oklahoma	McCurtain Co.	08 Oct 1971	J. Flotte 85	"White grass"
USA	Illinois	McDonough Co.	11 Sep 1974	R. M. Myers 4865
USA	Minnesota	Washington Co.	15 Aug 1972	T. M. Lindayen 171
USA	New Hampshire	Coos Co.	12 Aug 1946	A. S. Pease 32323
USA	California	Sonoma Co.	19 Jul 1958	P. Rubtzoff 3762
USA	Massachusetts	Hampshire Co.	01 Aug 1979	D. E. Boufford 21287
USA	West Virginia	Pocahontas Co.	18 Aug 1981	R. P. Sauleda 5943
USA	Virginia	Princess Anne Co.	08 Oct 1961	R. Kral 14425
USA	Virginia	Princess Anne Co.	22 Sep 1933	M. L. Fernald 2704
USA	Wisconsin	Wood Co.	22 Aug 1993	M. J. Huebschen 137
USA	Virginia	Montgomery Co.	06 Sep 1960	R. Kral 11397
USA	Illinois	Alexander Co.	15 Sep 1999	S. R. Hill 32025
USA	Delaware	Sussex Co.	11 Sep 2010	W. D. Longbottom 14291
USA	Illinois	Woodford Co.	08 Sep 1995	S. R. Hill 27449
USA	Virginia	Westmoreland Co.	17 Sep 1984	G. E. Lam 482
USA	New York	Erie Co.	26 Aug 1981	D. D. Taylor 1212
USA	Minnesota	Clearwater Co.	09 Aug 1941	A. M. Schultz 35
USA	Virginia	Craig Co.	20 Sep 1973	L. J. Uttal 10293
USA	Kentucky	Madison Co.	24 Sep 1960	J. Grossman 486
USA	Maryland		09 Sep 1905	A. Chase 316
USA	Missouri	Jasper Co.	08 Oct 1920	E. J. Palmer 19019
USA	Pennsylvania	Lehigh Co.	14 Aug 1900	P. Dowell 933
USA	Kansas	Douglas Co.	Aug 1892	W. C. Stevens 118
USA	Vermont	Essex Co.	26 Aug 1959	A. S. Pease 39573
USA	New York	Tompkins Co.	04 Sep 1940	E. S. Ford 531
Canada	Quebec	Argenteuil Co.	15 Aug 1949	Fr. Rolland-Germain 2400
USA	Vermont	Windham Co.	14 Aug 1918	L. A. Wheeler 129703
USA	Texas	Comal Co.	03 May 1940	A. Yearwood 66

Listed Status: Florida

Listed Status:	(Florida):Source - Plants in the Preservation of Native Flora of Florida Act. Chapter 5B-40, Florida Administrative Code. 1998, amended.
Endangered:	A species of plants native to the state that are in imminent danger of extinction within the state, the survival of which is unlikely if the causes of a decline in the number of plants continue, and includes all species determined to be endangered or threatened pursuant to the Federal Endangered Species Act of 1973, as amended.
Threatened:	Listed as Threatened Plants in the Preservation of Native Flora of Florida Act. Defined as species of plants native to the state that are in rapid decline in the number of plants within the state, but which have not so decreased in such number as to cause them to be endangered.

Listed Status: US

Listed Status: US	(U.S.) Source - List of Endangered and Threatened Wildlife and Plants under the provisions of the Endangered Species Act of 1973, as amended.
Endangered:	Any species which is in danger of extinction throughout all or a significant portion of its range.
Threatened:	Any species which is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range.

WAP: Wetland AssessmentProcedure

Wetland Assessment Procedure (WAP): Source - Southwest Florida Water Management District, Wetland Assessment Procedure Instruction Manual for Isolated Wetlands (March 2005).

AD:	Adaptive Species. Plant species designated as FAC or Upland by DEP, but commonly seen in the transition zone in limited numbers.
D:	Deep Species. Plant species commonly found in the deep zone, and designated either FAC or OBL by DEP.
OD:	Outer Deep Species. Plant species commonly found in the outer deep zone, and designated either FACW or OBL by DEP.
T:	Transition Species. Plant species commonly found in the transition zone, and designated either FACW or OBL by DEP.
U:	Upland Species. Plant species that are not expected to be seen in wetlands.

ANY - WAP critieria is not taken into consideration
Yes - Show results with WAP designations
No - Show results without WAP designations

FISC: Florida Invasive Species Council

FISC:

Source - Florida Invasive Species Council's 2017 List of Florida's Most Invasive Species

Category I - Species that are invading and disrupting native plant communities in Florida. This definition does not rely on the economic severity or geographic range of the problem, but on the documented ecological damage caused.

Category II - Species that have shown a potential to disrupt native plant communities. These species may become ranked as Category I, but have not yet demonstrated disruption of natural Florida communities.

DEP: Department of Environmental Protection

Wetland Status, Department of Environmental Regulation (DEP): Source - Delineation of the Landward Extent of Wetlands and Surface Waters, Chapter 62-340, Florida Administrative Code. 1994.

OBL:	Obligate wetland. Occurs almost always under natural conditions in wetlands.
FACW:	Facultative Wetland. Usually occurs in wetlands, but occasionally found in non-wetlands
FAC:	Facultative. equally likely to occur in wetlands or non-wetlands.

NWPL: National Wetland Plant List

National Wetland Plant List (NWPL): Source - Lichvar, R.W., M. Butterwick, N.C. Melvin, and W.N. Kirchner. 2014. The National Wetland Plant List: 2014 Update of Wetland Ratings. Phytoneuron 2014-41: 1-42.

OBL:	Obligate Wetland. Occurs almost always (estimated probability 99%) under natural conditions in wetlands.
FACW:	Facultative Wetland. Usually occurs in wetlands (estimated probability 67%-99%), but occasionally found in non-wetlands.
FAC:	Facultative. Equally likely to occur in wetlands or non-wetlands (estimated probability 34%-66%).
FACU:	Facultative Upland. Usually occurs in non-wetlands (estimated probability 67%-99%), but occasionally found in wetlands (estimated probability 1%-33%).
UPL:	Obligate Upland. Occurs in wetlands in another region, but occurs almost always (estimated probability 99%) under natural conditions in non-wetlands in the regions specified.

Persisting

Identifying species that appear as waifs or only periodically appear in the flora for a few seasons.

Any - Persisting critieria is not taken into consideration
Yes - Show results with a Persisting value of Y
No - Show results without Persisting value of N

Duration

Annual:	Plants that perform their entire lifecycle within a single growing season. All roots, stems, and leaves die at the end of the growing season. Over wintering seeds allow the next generation to appear.
Biennial:	A plant that is typically vegetative its first year and blooms the following season. Once it has bloomed and set seed, the plant dies. Garlic mustard is an example of a biennial.
Perennial:	These plants live for three or more seasons. Many perennials may not be mature enough to bloom during its first year. Perennial wildflowers re-grow each season from overwinter root material.

Category

Vascular:	Any of various plants that have the vascular tissues xylem and phloem. The vascular plants include all seed-bearing plants (the gymnosperms and angiosperms) and the pteridophytes (including the ferns, lycophytes, and horsetails). Also called tracheophyte.
Bryophyte:	A large group of seedless green plants including the mosses, liverworts, and hornworts. Bryophytes lack the specialized tissues xylem and phloem that circulate water and dissolved nutrients in the vascular plants. Bryophytes generally live on land but are mostly found in moist environments, for they have free-swimming sperm that require water for transport. In contrast to the vascular plants, the gametophyte (haploid) generation of bryophytes constitutes the larger plant form, while the small sporophyte (diploid) generation grows on or within the gametophyte and depends upon it for nutrition.
Lichen:	The mutualistic symbiotic association of a fungus with an alga or a cyanobacterium, or both. The fungal component of a lichen absorbs water and nutrients from the surroundings and provides a suitable environment for the alga or cyanobacterium. These live protected among the dense fungal hyphae and produce carbohydrates for the fungus by photosynthesis. Owing to this partnership, lichens can thrive in harsh environments such as mountaintops and polar regions. The more familiar lichens grow slowly as crusty patches, but lichens are found in a variety of forms, such as the tall, plantlike reindeer moss. The association between the different organisms in a lichen is so close that lichens are routinely referred to as a single organism, and scientists classify lichens using the name of the fungal component.

(Definitions from: American Heritage Science Dictionary)

Growth Habit

Intro paragraph to be provided by New York.

Vine:	DESCRIPTION TO BE PROVIDED BY NEW YORK.
Shrub:	DESCRIPTION TO BE PROVIDED BY NEW YORK.
Tree:	DESCRIPTION TO BE PROVIDED BY NEW YORK.
Et cetera:	DESCRIPTION TO BE PROVIDED BY NEW YORK.

State Rank

This numeric rank provides the relative rarity for each species based on a scale from 1 (very rare) to 5 (common). These ranks carry no legal status.

S1 - Typically 5 or fewer occurrences, very few remaining individuals, acres, or miles of stream, or some factor of its biology making it especially vulnerable in the state.
S2 - Typically 6 to 20 occurrences, few remaining individuals, acres, or miles of stream, or factors demonstrably making it very vulnerable in the state.
S3 - Typically 21 to 100 occurrences, limited acreage, or miles of stream in the state.
S4 - Apparently secure in the state.
S5 - Demonstrably secure in the state.
SE - State exotic or non-native.
SH - Historically known from the state, but not seen in the past 15 years.
SNA - Species for which a rank is not applicable. This is mainly those species which are now excluded from flora for various reasons.
SNR - Not yet ranked.
SX - Apparently extirpated from the state.

Global Rank

Each species' global rank is determined by NatureServe. These ranks carry no legal weight. The global rank reflects the species worldwide rarity.

G1 - Critically imperiled globally because of extreme rarity (5 or fewer occurrences), or very few remaining acres, or miles of stream) or especially vulnerable to extinction because of some factor of its biology.
G2 - Imperiled globally because of rarity (6 - 20 occurrences, or few remaining acres, or miles of stream) or very vulnerable to extinction throughout its range because of other factors.
G3 - Imperiled globally because of rarity (6 - 20 occurrences, or few remaining acres, or miles of stream) or very vulnerable to extinction throughout its range because of other factors.
G4 - Imperiled globally because of rarity (6 - 20 occurrences, or few remaining acres, or miles of stream) or very vulnerable to extinction throughout its range because of other factors.
G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
GH - Historically known, with the expectation that it might be rediscovered.
GNA - Species for which a rank is not applicable. NatureServe does not typically rank hybrid species.
GNR - Not yet ranked.
GX - Species believed to be extinct.

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Filter by County - Counties to Exclude - ANY versus ALL

Any - An Any search will combine the list of counties to exclude with a Boolean Or. Plant species returned will not be found within at least one of the selected counties.
All - An All search will combine the list of counties to exclude with a Boolean And. Plant species returned will not be found within any of the selected counties.

Associated Ecological Communities

View a List of All Ecological Communities

For more information, contact: Richard Wunderlin or Bruce Hansen, Alan Franck, or Karla Alvarado

Web Development: USF Water Institute

A member of the University of South Florida family of PlantAtlas.org websites

Citation Information:

Wunderlin, R. P., B. F. Hansen, A. R. Franck, and F. B. Essig. 2024. Atlas of Florida Plants (http://florida.plantatlas.usf.edu/). [S. M. Landry and K. N. Campbell (application development), USF Water Institute.] Institute for Systematic Botany, University of South Florida, Tampa.

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Definition: Vouchered Specimen

A voucher specimen is a pressed and thoroughly dried plant sample deposited in a herbarium, and is intended to be a permanent record supporting research purposes. A voucher may be a record of a plant's occurrence in a particular area, or a specific example of a plant used in a scientific investigation.

Proper vouchers display all the necessary attributes for complete identification of the plant, and are to be accompanied by accurate locality, habitat, collection time, and collector data.

Only plant populations vouchered by specimens deposited in Index Herbariorum http://sweetgum.nybg.org/science/ih/ recognized herbaria are represented on this map.