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Poa compressa

Family:Poaceae
Species:Poa compressa L.
Common Name:flat-stemmed blue grass, Canada blue grass
Habitat:Mesic forests, ledges and rock outcrops, edge of paths and dirt roads through forests, roadsides, and disturbed sites. Does particularly well in high pH sites. Sometimes it can occur in large relatively dense patches but the plants are thin and therefore this introduced species usually does not appear to be an aggressive invader.
Associated Ecological Communities:**
Growth Habit:Graminoid
Duration:Perennial
Category:Vascular
Plant Notes:**
Taxonomic Notes:**
Status:Not Native, Naturalized, FACU (NCNE), FACU (EMP), SNA (State Rank), GNR (Global Rank)
References:**

** Not applicable or data not available.

Classification

SupraordinalMonocots
Order Poales
FamilyPoaceae
Genus Poa
SpeciesPoa compressa L. - flat-stemmed blue grass, Canada blue grass

Citation

Citation Poa compressa L.
Basionym: **
Type: **

** Not applicable or data not available.

Source

CountyYearHerbariaNotesSubmission Info
Albany  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Albany1989 NYS
Herbarium Name Used: none Poa compressa
   
Allegany1940 TAES – Accession #: 64994
Herbarium Name Used: none Poa compressa
   
Bronx1995 BKL – BKL00079511
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Bronx1989 BKL – BKL00087344
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Bronx  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Broome  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Cattaraugus  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Cayuga  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Chautauqua  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Chemung  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Clinton  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Columbia  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Delaware  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Dutchess  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Dutchess1996 BKL – BKL00007231
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Erie  BKL – BKL00079498
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Erie  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Essex1988 NYS
Herbarium Name Used: none Poa compressa
   
Essex  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Essex1918 BKL – BKL00079497
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Franklin1976 NYS
Herbarium Name Used: none Poa compressa
   
Fulton  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Genesee  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Greene  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Greene1934 BKL – BKL00079509
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Hamilton  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Herkimer  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Jefferson  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Jefferson1992 NYS
Herbarium Name Used: none Poa compressa
   
Jefferson1994 RCFS – accession # 10071
Herbarium Name Used: Poa compressa
  11/17/2009 - RCFS (Andy Nelson)
Kings1992 BKL – BKL00079466
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings1992 BKL – BKL00079480
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings1992 BKL – BKL00079481
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings1992 BKL – BKL00079469
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings1992 BKL – BKL00079485
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings1936 BH
Herbarium Name Used: none Poa compressa
   
Kings1936 NY
Herbarium Name Used: none Poa compressa
   
Kings1936 BKL
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings1992 BKL – BKL00007410
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings1992 BKL – BKL00079495
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings1992 BKL – BKL00079460
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings1926 BKL – BKL00079479
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings1910 BKL – BKL00079472
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings1992 NYS
Herbarium Name Used: none Poa compressa
   
Kings1993 BKL – BKL00079465
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Kings1992 BKL – BKL00079488
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings1936 CONN
Herbarium Name Used: none Poa compressa
   
Kings1992 BKL – BKL00079484
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings1888 BKL – BKL00079491
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Kings1993 BKL – BKL00079486
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Lewis  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Lewis1987 NYS
Herbarium Name Used: none Poa compressa
   
Livingston  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Madison1987 NYS
Herbarium Name Used: none Poa compressa
   
Madison  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Monroe1981 NYS
Herbarium Name Used: none Poa compressa
   
Monroe1989 NYS
Herbarium Name Used: none Poa compressa
   
Monroe1991 NYS
Herbarium Name Used: none Poa compressa
   
Monroe  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Monroe1992 FLH
Herbarium Name Used: Poa compressa
  3/13/2022 - FLH (Bruce Gilman)
Monroe1993 FLH
Herbarium Name Used: Poa compressa
  3/13/2022 - FLH (Bruce Gilman)
Montgomery  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Nassau  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Nassau1921 BKL – BKL00079489
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Nassau1922 BKL – BKL00079512
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
New York1995 BKL – BKL00079515
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
New York  NYFA_1990
Herbarium Name Used: none Poa compressa
   
New York2003 BKL – BKL00025843
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
New York2003 BKL – BKL00040819
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
New York1995 NYS
Herbarium Name Used: none Poa compressa
   
Niagara  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Niagara1988 BH
Herbarium Name Used: Poa compressa
collector and number: P.M.Eckel s.n. 7/1/2024 - Patricia Eckel
Oneida  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Onondaga  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Onondaga1946 RCFS – accession # 11741
Herbarium Name Used: Poa compressa
  11/17/2009 - RCFS (Andy Nelson)
Onondaga1945 RCFS – accession # 11742
Herbarium Name Used: Poa compressa
  11/17/2009 - RCFS (Andy Nelson)
Onondaga1946 RCFS – accession # 11743
Herbarium Name Used: Poa compressa
  11/17/2009 - RCFS (Andy Nelson)
Onondaga1949 RCFS – accession # 11744
Herbarium Name Used: Poa compressa
  11/17/2009 - RCFS (Andy Nelson)
Onondaga1949 RCFS – accession # 11745
Herbarium Name Used: Poa compressa
  11/17/2009 - RCFS (Andy Nelson)
Onondaga1923 BH
Herbarium Name Used: Poa compressa
Werier (2017) voucher!; G.P. VanEseltine & F.L. VanEseltine 2701 3/6/2018 - David Werier
Ontario1980 FLH
Herbarium Name Used: Poa compressa
  3/13/2022 - FLH (Bruce Gilman)
Ontario1980 FLH
Herbarium Name Used: Poa compressa
  3/13/2022 - FLH (Bruce Gilman)
Ontario1985 FLH
Herbarium Name Used: Poa compressa
  3/13/2022 - FLH (Bruce Gilman)
Ontario2001 FLH
Herbarium Name Used: Poa compressa
  3/13/2022 - FLH (Bruce Gilman)
Ontariono date FLH
Herbarium Name Used: Poa compressa
  3/13/2022 - FLH (Bruce Gilman)
Ontario  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Orange1990 BKL – BKL00013573
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Orange1990 NYS
Herbarium Name Used: none Poa compressa
   
Orange  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Orange1990 BKL – BKL00079468
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Oswego  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Oswego1997 NYS
Herbarium Name Used: none Poa compressa
   
Oswego1997 RCFS – accession # 12070
Herbarium Name Used: Poa compressa
  11/17/2009 - RCFS (Andy Nelson)
Oswego2009 RCFS – accession # 13284
Herbarium Name Used: Poa compressa
  11/17/2009 - RCFS (Andy Nelson)
Oswego2009 RCFS – accession # 13302
Herbarium Name Used: Poa compressa
  11/17/2009 - RCFS (Andy Nelson)
Otsego  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Putnam1976 NYS
Herbarium Name Used: none Poa compressa
   
Putnam1990 BKL – BKL00079467
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Queens1990 BKL – BKL00079471
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Queens1883 BKL – BKL00079492
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Queens1989 BKL – BKL00079487
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Queens1883 BKL – BKL00079493
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Queens1992 BKL – BKL00079482
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Queens1969 BKL – BKL00079463
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Queens1896 BKL – BKL00079513
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Queens  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Queens1912 BKL – BKL00079478
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Queens1910 BKL – BKL00079473
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Queens1896 BKL – BKL00079514
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Queens1990 BKL – BKL00079470
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Queens1990 BKL
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Queens2005 BKL – BKL00052278
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Queens1992 BKL – BKL00079483
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Rensselaer1999 NYS
Herbarium Name Used: none Poa compressa
   
Rensselaer  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Rensselaer1997 NYS
Herbarium Name Used: none Poa compressa
   
Richmond1989 BKL – BKL00079516
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Richmond1912 BKL – BKL00079725
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Richmond  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Rockland1990 NYS
Herbarium Name Used: none Poa compressa
   
Rockland  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Saratoga  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Schoharie  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Schuyler  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Schuyler1988 BKL – BKL00100317
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
St. Lawrence1982 STLA
Herbarium Name Used: none Poa compressa
  Anne Johnson
St. Lawrence  NYFA_1990
Herbarium Name Used: none Poa compressa
   
St. Lawrence1992 NYS
Herbarium Name Used: none Poa compressa
   
St. Lawrence1990 ESF
Herbarium Name Used: none Poa compressa
  Anne Johnson
St. Lawrence1916 BKL – BKL00079496
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
St. Lawrence1985 NYS
Herbarium Name Used: none Poa compressa
   
Steuben  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Suffolk1995 NYS
Herbarium Name Used: none Poa compressa
   
Suffolk  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Suffolk1940 BKL – BKL00079490
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1941 BKL – BKL00079510
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1994 BKL – BKL00011837
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1994 BKL – BKL00084266
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1879 BKL – BKL00079477
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1994 BKL – BKL00011833
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1872 BKL – BKL00079474
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1962 BKL – BKL00080576
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1994 BKL – BKL00011488
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1994 BKL – BKL00084225
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1994 BKL – BKL00084265
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk  BKL – BKL00079476
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1931 BKL – BKL00079475
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk2006 BKL – BKL00076094
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1962 BKL – BKL00080577
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1990 NYS
Herbarium Name Used: none Poa compressa
   
Suffolk1972 CONN
Herbarium Name Used: none Poa compressa
   
Suffolk1989 NYS
Herbarium Name Used: none Poa compressa
   
Suffolk1994 NYS
Herbarium Name Used: none Poa compressa
   
Suffolk1994 BKL – BKL00011507
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1909 BKL – BKL00079461
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1872 BKL – BKL00079494
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1994 BKL – BKL00084183
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk1994 BKL – BKL00011836
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Suffolk2022 BH
Herbarium Name Used: Poa compressa
collector: V. Bustamante 2028 11/28/2023 - David Werier
Suffolk2021 BH
Herbarium Name Used: Poa compressa
collector: V. Bustamante 1900 11/28/2023 - David Werier
Sullivan2010 BKL – BKL00097422
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Sullivan  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Tioga  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Tompkins  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Ulster2011 BKL – BKL00102108
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Ulster2011 BKL – BKL00101371
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Ulster  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Warren  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Warren1991 NYS
Herbarium Name Used: none Poa compressa
   
Washington  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Washington1897 BKL – BKL00079517
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Wayne  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Westchester  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Westchester1896 NYS
Herbarium Name Used: none Poa compressa
   
Westchester1896 BKL – BKL00079464
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Westchester1896 BKL – BKL00079462
Herbarium Name Used: Poa compressa
  2/8/2012 - BKL (Steve Glenn)
Yates  NYFA_1990
Herbarium Name Used: none Poa compressa
   
Yates1950 BUPL
Herbarium Name Used: none Poa compressa
   

Synonyms

SynonymFull CitationBasionymTypeNotes
Poa compressa var. sylvestris Poa compressa L. var. sylvestris Torr.   
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:
  1. 5 or fewer extant sites, or
  2. fewer than 1,000 individuals, or
  3. restricted to fewer than 4 U.S.G.S. 7 1/2 minute topographical maps, or
  4. species listed as endangered by the U. S. Department of Interior, as enumerated in the Code of Federal Regulations 50 CFR 17.11.
Threatened:
  1. 6 to fewer than 20 extant sites, or
  2. 1,000 to fewer than 3,000 individuals, or
  3. restricted to not less than 4 or more than 7 U.S.G.S. 7 1/2 minute topographical maps, or
  4. listed as threatened by the U. S. Department of the Interior, as enumerated in the Code of Federal Regulations 50 CFR 17.11.
Rare:
  1. 20 to 35 extant sites, or
  2. 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)

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.

 
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)

 
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 β€” 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 β€” At high risk of extinction or elimination due to restricted range, few populations or occurrences, steep declines, severe threats, or other factors.
  • G3 - Vulnerable β€” 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 β€” 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 β€” 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 β€” 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 β€” 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 β€” Not located despite intensive searches and virtually no likelihood of rediscovery.
 
Associated Ecological Communities
 
Search Help

Select the criterion by which you wish to search (Scientific name, Genus, Family, etc.) and enter that information into the provided field.

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.