Carex flava

Distribution Map: Based on vouchered plant specimens only. View county names by placing the mouse cursor over a particular county.

Browse Photos

Family:	Cyperaceae
Species:	Carex flava L.
Common Name:	large yellow sedge
Habitat:	Rich fens, stream edges, cobble river shores, peaty marshes with low and thin adjacent herbaceous vegetation, perennially wet calcareous rock outcrops and ledges, wet fields, roadside ditches, and other calcareous open wetlands. Occurs predominately in calcareous soils that are often peaty and perennially wet, and does best where the adjacent herbaceous vegetation is low and thin.
Associated Ecological Communities:	**
Growth Habit:	Graminoid
Duration:	Perennial
Category:	Vascular
Plant Notes:	**
Taxonomic Notes:	**
Status:	Native, OBL (NCNE), OBL (EMP), S5 (State Rank), G5 (Global Rank), CoC: 4
References:	**

** Not applicable or data not available.

Classification

Supraordinal	Monocots
Order	Poales
Family	Cyperaceae
Genus	Carex
Species	Carex flava L. - large yellow sedge

Citation

Citation	Carex flava L.
Basionym:	**
Type:	**

** Not applicable or data not available.

Source

County	Year	Herbaria	Notes	Submission Info
Albany		NYFA_1990 Herbarium Name Used: none Carex flava
Cattaraugus		NYFA_1990 Herbarium Name Used: none Carex flava
Cayuga		NYFA_1990 Herbarium Name Used: none Carex flava
Cayuga	1916	BH Herbarium Name Used: Carex flava	Werier (2017) voucher!; F.P. Metcalf 6081	3/6/2018 - David Werier
Chautauqua		NYFA_1990 Herbarium Name Used: none Carex flava
Chautauqua	1930	NYS Herbarium Name Used: none Carex flava
Chemung		NYFA_1990 Herbarium Name Used: none Carex flava
Chenango		NYFA_1990 Herbarium Name Used: none Carex flava
Clinton		NYFA_1990 Herbarium Name Used: none Carex flava
Clinton	1956	NYS Herbarium Name Used: none Carex flava
Clinton	1989	NYS Herbarium Name Used: none Carex flava
Clinton	1993	NYS Herbarium Name Used: none Carex flava
Clinton	1994	NYS Herbarium Name Used: none Carex flava
Columbia		NYFA_1990 Herbarium Name Used: none Carex flava
Cortland	2010	BING Herbarium Name Used: Carex flava		1/18/2020 - BING (Julian Shepherd)
Cortland		NYFA_1990 Herbarium Name Used: none Carex flava
Dutchess	1986	NYS Herbarium Name Used: none Carex flava
Dutchess	1988	NYS Herbarium Name Used: none Carex flava
Dutchess	1996	BKL – BKL00007099 Herbarium Name Used: Carex flava		2/8/2012 - BKL (Steve Glenn)
Dutchess	1960	NYS Herbarium Name Used: none Carex flava
Dutchess	1948	BUPL Herbarium Name Used: none Carex flava
Dutchess		NYFA_1990 Herbarium Name Used: none Carex flava
Dutchess	1987	NYS Herbarium Name Used: none Carex flava
Erie	1921	NYS Herbarium Name Used: none Carex flava
Erie		BKL – BKL00052131 Herbarium Name Used: Carex flava		2/8/2012 - BKL (Steve Glenn)
Erie		NYFA_1990 Herbarium Name Used: none Carex flava
Erie		BKL – BKL00052122 Herbarium Name Used: Carex flava		2/8/2012 - BKL (Steve Glenn)
Erie	1928	NYS Herbarium Name Used: none Carex flava
Essex		NYFA_1990 Herbarium Name Used: none Carex flava
Essex	1927	NYS Herbarium Name Used: none Carex flava
Fulton	1935	NYS Herbarium Name Used: none Carex flava
Fulton		NYFA_1990 Herbarium Name Used: none Carex flava
Genesee	1998	RCFS – accession # 12307 Herbarium Name Used: Carex flava		11/17/2009 - RCFS (Andy Nelson)
Genesee	1998	RCFS – accession # 12308 Herbarium Name Used: Carex flava		11/17/2009 - RCFS (Andy Nelson)
Genesee	1941	NYS Herbarium Name Used: none Carex flava
Genesee		NYFA_1990 Herbarium Name Used: none Carex flava
Genesee	1933	ROCH – barcode: 391 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1941	ROCH – barcode: 392 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1941	ROCH – barcode: 413 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1948	ROCH – barcode: 393 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1865	ROCH – barcode: 394 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1866	ROCH – barcode: 395 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1923	ROCH – barcode: 415 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1924	ROCH – barcode: 414 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1931	ROCH – barcode: 390 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1893	ROCH – barcode: 389 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1895	ROCH – barcode: 397 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1895	ROCH – barcode: 398 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1895	ROCH – barcode: 399 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1895	ROCH – barcode: 400 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1906	ROCH – barcode: 396 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1911	ROCH – barcode: 401 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1911	ROCH – barcode: 402 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1913	ROCH – barcode: 403 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1917	ROCH – barcode: 385 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1917	ROCH – barcode: 386 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1917	ROCH – barcode: 387 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Genesee	1917	ROCH – barcode: 388 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Greene		NYFA_1990 Herbarium Name Used: none Carex flava
Hamilton	1998	NYS Herbarium Name Used: none Carex flava
Herkimer		NYFA_1990 Herbarium Name Used: none Carex flava
Herkimer	1994	NYS Herbarium Name Used: none Carex flava
Herkimer	1932	BKL – BKL00052127 Herbarium Name Used: Carex flava		2/8/2012 - BKL (Steve Glenn)
Jefferson		NYFA_1990 Herbarium Name Used: none Carex flava
Lewis	1992	NYS Herbarium Name Used: none Carex flava
Lewis	1991	NYS Herbarium Name Used: none Carex flava
Lewis		NYFA_1990 Herbarium Name Used: none Carex flava
Lewis	1992	FLH Herbarium Name Used: Carex flava		3/13/2022 - FLH (Bruce Gilman)
Lewis	1992	FLH Herbarium Name Used: Carex flava		3/13/2022 - FLH (Bruce Gilman)
Lewis	1992	FLH Herbarium Name Used: Carex flava		3/13/2022 - FLH (Bruce Gilman)
Livingston	1994	NYS Herbarium Name Used: none Carex flava
Madison	1987	NYS Herbarium Name Used: none Carex flava
Madison		NYFA_1990 Herbarium Name Used: none Carex flava
Madison	1930	NYS Herbarium Name Used: none Carex flava
Monroe	no year	ROCH – barcode: 405 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Monroe	1931	ROCH – barcode: 417 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Monroe	1930	ROCH – barcode: 410 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Monroe	1930	ROCH – barcode: 411 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Monroe		NYFA_1990 Herbarium Name Used: none Carex flava
Montgomery	1953	NYS Herbarium Name Used: none Carex flava
Oneida	1927	NYS Herbarium Name Used: none Carex flava
Oneida		BKL – BKL00052123 Herbarium Name Used: Carex flava		2/8/2012 - BKL (Steve Glenn)
Oneida	1840	BKL – BKL00052125 Herbarium Name Used: Carex flava		2/8/2012 - BKL (Steve Glenn)
Oneida		BKL – BKL00052126 Herbarium Name Used: Carex flava		2/8/2012 - BKL (Steve Glenn)
Oneida		NYFA_1990 Herbarium Name Used: none Carex flava
Oneida	no year	ROCH – barcode: 409 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Onondaga	1951	RCFS – accession # 11128 Herbarium Name Used: Carex flava		11/17/2009 - RCFS (Andy Nelson)
Onondaga	1948	RCFS – accession # 11129 Herbarium Name Used: Carex flava		11/17/2009 - RCFS (Andy Nelson)
Onondaga	1949	RCFS – accession # 11130 Herbarium Name Used: Carex flava		11/17/2009 - RCFS (Andy Nelson)
Onondaga	1946	RCFS – accession # 11131 Herbarium Name Used: Carex flava		11/17/2009 - RCFS (Andy Nelson)
Onondaga	1991	NYS Herbarium Name Used: none Carex flava
Onondaga	1995	NYS Herbarium Name Used: none Carex flava
Onondaga		NYFA_1990 Herbarium Name Used: none Carex flava
Ontario	1994	FLH Herbarium Name Used: Carex flava		3/13/2022 - FLH (Bruce Gilman)
Ontario	2021	FLH Herbarium Name Used: Carex flava		3/13/2022 - FLH (Bruce Gilman)
Orange	1990	NYS Herbarium Name Used: none Carex flava
Orange	1935	BKL – BKL00052128 Herbarium Name Used: Carex flava		2/8/2012 - BKL (Steve Glenn)
Oswego	1997	RCFS – accession # 12346 Herbarium Name Used: Carex flava		11/17/2009 - RCFS (Andy Nelson)
Oswego	1997	RCFS – accession # 12347 Herbarium Name Used: Carex flava		11/17/2009 - RCFS (Andy Nelson)
Oswego	1999	RCFS – accession # 12747 Herbarium Name Used: Carex flava		11/17/2009 - RCFS (Andy Nelson)
Oswego	1880	NYS Herbarium Name Used: none Carex flava
Oswego	1993	NYS Herbarium Name Used: none Carex flava
Oswego		NYFA_1990 Herbarium Name Used: none Carex flava
Oswego	1997	NYS Herbarium Name Used: none Carex flava
Otsego	2011	HHH – 22976 Herbarium Name Used: Carex flava		6/28/2013 - Connie Tedesco
Otsego	2004	SUCO Herbarium Name Used: none Carex flava	Town of Burlington
Otsego		NYFA_1990 Herbarium Name Used: none Carex flava
Otsego	2005	SUCO Herbarium Name Used: none Carex flava	Town of Burlington
Rensselaer	1997	NYS Herbarium Name Used: none Carex flava
Rensselaer	2000	NYS Herbarium Name Used: none Carex flava
Rensselaer		NYFA_1990 Herbarium Name Used: none Carex flava
Saratoga		NYFA_1990 Herbarium Name Used: none Carex flava
Saratoga	1941	NYS Herbarium Name Used: none Carex flava
Schenectady	1995	NYS Herbarium Name Used: none Carex flava
Schoharie		NYFA_1990 Herbarium Name Used: none Carex flava
Schuyler		NYFA_1990 Herbarium Name Used: none Carex flava
Seneca		NYFA_1990 Herbarium Name Used: none Carex flava
Seneca	1994	NYS Herbarium Name Used: none Carex flava
Seneca	1932	BKL – BKL00052129 Herbarium Name Used: Carex flava		2/8/2012 - BKL (Steve Glenn)
Seneca	1920	ROCH – barcode: 404 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Seneca	1918	ROCH – barcode: 416 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Seneca	1918	ROCH – barcode: 418 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
St. Lawrence	1916	BKL – BKL00052133 Herbarium Name Used: Carex flava		2/8/2012 - BKL (Steve Glenn)
St. Lawrence	1991	NYS Herbarium Name Used: none Carex flava
St. Lawrence	1990	ESF Herbarium Name Used: none Carex flava		Anne Johnson
St. Lawrence		NYFA_1990 Herbarium Name Used: none Carex flava
St. Lawrence	1997	NYS Herbarium Name Used: none Carex flava
St. Lawrence	1990	STLA Herbarium Name Used: none Carex flava		Anne Johnson
St. Lawrence	1985	NYS Herbarium Name Used: none Carex flava
Steuben		NYFA_1990 Herbarium Name Used: none Carex flava
Tioga		NYFA_1990 Herbarium Name Used: none Carex flava
Tompkins	1882	BKL – BKL00052130 Herbarium Name Used: Carex flava		2/8/2012 - BKL (Steve Glenn)
Tompkins		NYFA_1990 Herbarium Name Used: none Carex flava
Tompkins	1919	ROCH – barcode: 412 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Ulster		NYFA_1990 Herbarium Name Used: none Carex flava
Warren	1927	NYS Herbarium Name Used: none Carex flava
Warren	1991	NYS Herbarium Name Used: none Carex flava
Warren		NYFA_1990 Herbarium Name Used: none Carex flava
Washington		NYFA_1990 Herbarium Name Used: none Carex flava
Washington	1918	NYS Herbarium Name Used: none Carex flava
Wayne	no year	ROCH – barcode: 407 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Wayne	1867	ROCH – barcode: 406 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Wayne	1867	ROCH – barcode: 408 Herbarium Name Used: Carex flava		4/30/2013 - Steven Daniel
Wayne	1868	BKL – BKL00052124 Herbarium Name Used: Carex flava		2/8/2012 - BKL (Steve Glenn)
Wayne	2001	RCFS – accession # 13003 Herbarium Name Used: Carex flava		11/17/2009 - RCFS (Andy Nelson)
Yates		NYS Herbarium Name Used: none Carex flava
Yates		BKL – BKL00052132 Herbarium Name Used: Carex flava		2/8/2012 - BKL (Steve Glenn)

Synonyms

Synonym	Full Citation	Basionym	Type	Notes
Carex flava var. fertilis	Carex flava L. var. fertilis Peck
Carex flava var. laxior	Carex flava L. var. laxior (Kük.) Gleason
Carex laxior	Carex laxior (Kük.) Mack.

Listed Status: New York

Listed Status:	(New York): Rare plants are protected under New York State Environmental Conservation Law section 9-1503. Part (f) which reads as follows: "It is a violation for any person, anywhere in the state to pick, pluck, sever, remove, damage by the application of herbicides or defoliants, or carry away, without the consent of the owner, any protected plant. Each protected plant so picked, plucked, severed, removed, damaged or carried away shall constitute a separate violation." At this time, the Atlas only identifies those species listed as threatened or endangered.
Endangered: 5 or fewer extant sites, or fewer than 1,000 individuals, or restricted to fewer than 4 U.S.G.S. 7 1/2 minute topographical maps, or species listed as endangered by the U. S. Department of Interior, as enumerated in the Code of Federal Regulations 50 CFR 17.11.
Threatened: 6 to fewer than 20 extant sites, or 1,000 to fewer than 3,000 individuals, or restricted to not less than 4 or more than 7 U.S.G.S. 7 1/2 minute topographical maps, or listed as threatened by the U. S. Department of the Interior, as enumerated in the Code of Federal Regulations 50 CFR 17.11.
Rare: 20 to 35 extant sites, or 3,000 to 5,000 individuals statewide.
Exploitably vulnerable:	species which are likely to become threatened in the near future throughout all or a significant portion of their range within the state if causal factors continue unchecked.

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

EPPC: Exotic Pest Plant Council

EPPC:

Source - Florida Exotic Pest Plant Council's 2007 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.

NWPL: National Wetland Plant List (NCNE and EMP Regions)

National Wetland Plant List (NWPL): Source - U.S. Army Corps of Engineers 2020. National Wetland Plant List, version 3.5 https://wetland-plants.sec.usace.army.mil/nwpl_static/v34/home/home.html U.S. Army Corps of Engineers, Engineer Research and Development Center, Cold Regions Research and Engineering Laboratory, Hanover, NH.

Indicator status rating definitions according to Lichvar et al. 2012.

OBL:	Obligate Wetland Plants - almost always occur in wetlands.
FACW:	Facultative Wetland Plants - usually occur in wetlands, but may occur in non-wetlands.
FAC:	Facultative Plants - occur in wetlands and non-wetlands.
FACU:	Facultative Upland Plants - usually occur in non-wetlands, but may occur in wetlands.
UPL:	Upland Plants - almost always occur in uplands.

Wetland indicator status ratings are provided for each of the two regions that exist in NY, the Northcentral and Northeast Region (NCNE) and the Eastern Mountains and Piedmont Region (EMP). See the Atlas guide for further details.

NWPL: National Wetland Plant List (NCNE and EMP Regions)

Indicator status rating definitions according to Lichvar et al. 2012.

OBL:	Obligate Wetland Plants - almost always occur in wetlands.
FACW:	Facultative Wetland Plants - usually occur in wetlands, but may occur in non-wetlands.
FAC:	Facultative Plants - occur in wetlands and non-wetlands.
FACU:	Facultative Upland Plants - usually occur in non-wetlands, but may occur in wetlands.
UPL:	Upland Plants - almost always occur in uplands.

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 New York State.
S2 - Typically 6 to 20 occurrences, few remaining individuals, acres, or miles of stream, or factors demonstrably making it very vulnerable in New York State.
S3 - Typically 21 to 100 occurrences, limited acreage, or miles of stream in New York State.
S4 - Apparently secure in New York State.
S5 - Demonstrably secure in New York State.
SE - State exotic or non-native
SH - Historically known from New York 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 New York 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 — At very high risk of extinction or elimination due to very restricted range, very few populations or occurrences, very steep declines, very severe threats, or other factors.
G2 - Imperiled — At high risk of extinction or elimination due to restricted range, few populations or occurrences, steep declines, severe threats, or other factors.
G3 - Vulnerable — At moderate risk of extinction or elimination due to a fairly restricted range, relatively few populations or occurrences, recent and widespread declines, threats, or other factors.
G4 - Apparently Secure — At fairly low risk of extinction or elimination due to an extensive range and/or many populations or occurrences, but with possible cause for some concern as a result of local recent declines, threats, or other factors.
G5 - Secure — At very low risk of extinction or elimination due to a very extensive range, abundant populations or occurrences, and little to no concern from declines or threats.
GH - Possibly Extinct — Known from only historical occurrences but still some hope of rediscovery. Examples of evidence include (1) that a species has not been documented in approximately 20-40 years despite some searching and/or some evidence of significant habitat loss or degradation; (2) that a species has been searched for unsuccessfully, but not thoroughly enough to presume that it is extinct or eliminated throughout its range.
GNA - Not Applicable — A conservation status rank is not applicable because the species is not a suitable target for conservation activities. A global conservation status rank may be not applicable for several reasons, related to its relevance as a conservation target. Typically the species is a hybrid without conservation value, or of domestic origin.
GNR - Global rank not yet assessed.
GX - Presumed Extinct — Not located despite intensive searches and virtually no likelihood of rediscovery.

Filter by County - Counties to Include - ANY versus ALL

Any - An Any search will combine the list of counties to include with a Boolean Or. Plant species returned will be found within at least one of the selected counties.
All - An All search will combine the list of counties to include with a Boolean And. Plant species returned will be found within each of the selected counties.

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: David Werier or Kyle Webster

Web Development: USF Water Institute

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

Citation Information:

Werier, David, Kyle Webster, Troy Weldy, Andrew Nelson, Richard Mitchell†, and Robert Ingalls†. 2024 New York Flora Atlas. [S. M. Landry and K. N. Campbell (original application development), USF Water Institute. University of South Florida]. New York Flora Association, Albany, New York.

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Hint: Correct spelling is necessary for desired results, but because this function is a string search the full name need not be entered. Any correct part of a taxon name can be entered and a choice of the correct one made from the small list of resulting matches.

For example, matching the full name exactly in a Scientific Name search for Piptochaetium avenacioides may be difficult, but strings of either tium aven or avenaci or m avenac or pipto will all result in very small lists of matches. The intended name can then be chosen from any of those lists. Usually, the last letter (or two) of a given genus, a space, and the first few correct letters of the specific epithet will provide a sufficiently short list containing the desired taxon.

A similar example in a Common Name search is Virginia snakeroot. Searching using "snake root" will yield no results due to the extra space, but searching "snake" will generate a short list of plants with the word "snake" in the common name. Furthermore, a search of "Virginia snake" or even "nia snak" yields one result: Virginia snakeroot.

If, after following the above advice, then difficulties are still encountered please use the "browse" feature.

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.

Carex flava

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