Flora of New York/Acorales & Alismatales

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Nymphaeales & magnoliids
Flora of New York — Acorales & Alismatales
Dioscoreales & Liliales
Table of
contents
Genus
index
Protected species index Invasive species index


Order Family Subfamily Tribe Genera G T
Acorales Acoraceae Acorus (sweetflag) 1 2
Alismatales Araceae Orontioideae Orontieae Orontium (duckweed) 1 1
Symplocarpeae Symplocarpus (skunk cabbage) 1 1
Lemnoideae Lemna (duckweed)
Spirodela (duckmeat)
Wolffia (watermeal)
3 10
Aroideae Calleae Calla (callalily) 1 1
Peltandra Peltandra (arrow-arum) 1 1
Arisaemateae Arisaema (Jack-in-the-pulpit)
Pinellia (green dragon)
2 5
Pistieae Pistia (water-lettuce) 1 1
Tofieldiaceae Triantha (Tofieldia) 1 1
Hydrocharitaceae Hydrocharitoideae Egeria (waterweed)
Hydrocharis (frogbit)
Limnobium (spongeplant)
3 3
Anacharidoideae Elodea (waterweed) 1 3
Najadoideae Najadeae Najas (waternymph, naiad)
Hydrilla (water-thyme)
2 8
Vallisnerieae Vallisneria (eelgrass) 1 1
Butomaceae Butomus (flowering rush) 1 1
Alismataceae Sagittaria (arrowhead)
Alisma (water-plantiain)
Helanthium (burhead)
3 12
Scheuchzeriaceae Scheuchzeria (rannoch-rush) 1 1
Juncaginaceae Juncaginoideae Triglochin (arrowgrass) 1 2
Zosteraceae Zostera (eelgrass) 1 1
Zannichelliaceae Zannichellia (horned-pondweed) 1 1
Potamogetonaceae Potamogeton (pondweed)
Stuckenia (fineleaf pondweed)
2 35
Ruppiaceae Ruppia (ditch-grass) 1 1

Order Acorales[edit]

The order Acorales consists of only the Acoraceae (sweetflag family), with Acorus as its only genus.[1]

Family Acoraceae[edit]

Acorus[edit]

Acorales — Acoraceae — Acorus
Acorus Sweetflag N.Y. Status Images Distribution NY NE
 (Raf.) Raf.

1828. Acorus calamus var. americanus
1836. Acorus americanus (Raf.) Raf.
1954. Acorus calamus var. americanus
 auct. Acorus calamusnon L.
American sweet-flag,
American sweetflag,
Several-veined sweetflag,
Sweetflag
Acore d'Amérique,
Acorus d'Amérique,
Belle-angélique
Native, C:5,
Secure,
Fertile diploid
 (2n = 2x = 24)

OBL

Perennial,
Herb-forb,
Sun
Acorus americanus USFS-1.jpg
Acorus americanus nymap.svg
NYFA-5
USDA-N
NEW Can
ARS ITIS
FNA Trop.
NSE BNA
LBJ

Images, wsp
 L.

1753. Acorus calamus L.
Old World sweet-flag,
European sweetflag,
Single-veined sweetflag,
Flag-root,
Myrtle flag
Acore roseau,
Acorus roseau,
Acore aromatique,
Belle-angélique
Introduced from
 Asia,
Sterile triploid
 (2n = 3x = 36)

OBL

Perennial,
Herb-forb,
Sun
Acorus calamus 002.JPG
Acorus calamus nymap.svg
NYFA-X
USDA-X
NEW Can
ARS ITIS
FNA Trop.
NSE BNA


Images, wsp

Order Alismatales[edit]

The order Alismatales as defined in the Angiosperm Phylogeny Website.[1]

Family Araceae[edit]

The plants of the Araceae (arum family) have numerous small flowers that are part of a spadix, a spike inflorescence on which the flowers are borne on a fleshy stem. The spadix is usually surrounded by a bract called a spathe.

Subfamily Orontioideae[edit]

Tribe Orontieae[edit]

Orontium[edit]
Alismatales — Araceae — Orontioideae — Orontieae
Orontium Goldenclub N.Y. Status Images Distribution NY NE
L.

1753. Orontium aquaticum L.
1895. Aronia aquatica (L.) Baill.
Golden club Native, C:9,
Threatened,
NYNHP: 2[1]

OBL

Perennial,
Herb-forb,
Part shade
Orontium aquaticum detail 03.jpg
Orontium aquaticum NY-dist-map.png
NYFA-2
USDA-N0

ARS 
Trop.

LBJ

Images, wsp

Tribe Symplocarpeae[edit]

Symplocarpus[edit]
Symplocarpus foetidus - skunk cabbage
Skunk cabbage (Symplocarpus foetidus) is the only North American native of the genus.
Alismatales — Araceae — Orontioideae — Symplocarpeae
Symplocarpus Skunk-cabbage N.Y. Status Images Distribution NY NE
 (L.) W.Salisb.

1753. Dracontium foetidum L.
1808. Spathyema foetida (L.) Raf. nom. inval.
1812. Symplocarpus foetidus (L.) W.Salisb.
1817. S. foetidus (L.) Salisb. ex W.P.C.Barton
Skunk cabbage,
Polecatweed
Chou puant,
Tabac-du-diable
Native, C:5,
Secure

OBL

Perennial,
Herb-forb,
Shade
Symplocarpus foetidus CT2.jpg
Symplocarpus foetidus NY-dist-map.png
NYFA-5
USDA-NN

ARS 
FNA Trop.

LBJ

Images, wsp

Subfamily Lemnoideae[edit]

Duckweeds:
Spirodela polyrhiza (large),
Lemna minor (medium),
Wolffia arrhiza (small).
The Lemnoideae contains the small aquatic plants known as duckweeds, or water lentils. This subfamily contains plants previously placed in the Lemnaceae.

Spirodela[edit]

Spirodela polyrhiza - common duck-meat
Common duck-meat (Spirodela polyrhiza)
Alismatales — Araceae — Lemnoideae — Spirodela
Spirodela Duckmeat N.Y. Status Images Distribution NY NE
 (L.) Schleid.

1753. Lemna polyrhiza L.
1839. Spirodela polyrhiza Schleid.
1839. Spirodela polyrrhiza Schleid.
[1]
Common water-flaxseed,
Common duck-meal,
Common duck-meat,
Greater duckweed,
Giant duckweed
Spirodèle polyrhize
Native,
Secure

OBL

Perennial,
Herb-forb
Spirodela polyrhiza sl1.jpg
Nymap.svg
NYFA-5
USDA-NN
NEW Can
ARS ITIS
FNA Trop.
NSE BNA


Images, wsp
  1. "The initial ρ of a Greek word transliterated as rh, e.g. rhiza (ριζα, root, rhizome), should have an additional r added to it when preceded by a vowel, e.g. Glycyrrhiza (γλυκυρριζα, liquorice, from γλυκος, sweet, ριζα, root), leptorrhiza (λεπτορριζα, with a thin root, from λεπτος, small, slender), but as many reputable authors, Linnaeus among them, have omitted this additional r, it is best regarded as optional and an author's original spelling, as in Lemna polyrhiza, should be accepted." - W. T. Stearn (1992), Botanical Latin ed. 4: 261.

Lemna[edit]

Alismatales — Araceae — Lemnoideae — Lemna
Lemna Duckweed N.Y. Status Images Distribution NY NE
 L.

    L. cyclostasa Ell. ex Schleid.
    L. minima Chev. ex Schleid.
Lesser duckweed Native, C:2,
Secure
Kleine Wasserlinse (Entengrütze).JPG
Lemna minor NY-dist-map.png
NYFA-5
USDA-NN
NEW 





Images, wsp
 L.

Star duckweed Native, C:4,
Secure
Lemna trisulca NRCS-1.jpg
Lemna trisulca NY-dist-map.png
NYFA-5
USDA-NN
NEW 





Images, wsp
 Torr.

Minute duckweed Native, C:4,
Endangered,
NYNHP: 1[1]
Lemna perpusilla 3.JPG
Lemna perpusilla NY-dist-map.png
NYFA-1
USDA-NN
NEW 





Images, wsp
 Phil.

Pale duckweed,
Valdivia duckweed
Native, C:10,
Endangered,
NYNHP: 1[2]
Lemna valdiviana NRCS-001 (4x3).jpg
Nymap.svg
NYFA-1
USDA-NN
NEW 





Images, wsp
 Landolt

Turion duckweed,
Lenticulare turionifère
Native, C:4,
Unranked

OBL
Lemna turionifera.jpg
Nymap.svg
NYFA-U
USDA-NN
NEW 
ITIS




Images, wsp
Lemna (excluded species) Duckweed N.Y. Status Images Distribution NY NE
L.

    Lemna gibba L.
    
    
Swollen duckweed N. America native,
N.Y. excluded
L gibba3.jpg
Nymap.svg
NYFA-XCLD
USDA-N0






Images, wsp
 (Austin) Daubs

    L. minor var. obscura
    
    
Little duckweed N. America native,
N.Y. excluded
Aguas del lago de Maracaibo contaminadas por Lemna 02.JPG
Nymap.svg
NYFA-XCLD
USDA-N0

ARS 




Images, wsp

Wolffia[edit]

Wolffia columbiana - Columbian watermeal
The genus Wolffia (watermeal) contains the world's smallest flowering plants, each an undifferentiated, rootless floating body. These species are often found in mixed populations in still ponds, lakes, and marshes in various parts of the state.
Alismatales — Araceae — Lemnoideae — Wolffia
WolffiaHorkel ex Schleiden Watermeal N.Y. Status Images Distribution NY NE
 H.Karst.

1865. Wolffia columbiana H.Karst
1892. Grantia columbiana (H.Karst.) MacMill.
1912. Bruniera columbiana (H.Karst.) Nieuwl.
Columbian watermeal,
Columbia watermeal,
Columbian duckmeal
Wolffie de Colombie
Native,
Secure
Wolffia columbiana sl4.jpg
Nymap.svg
NYFA-5
USDA-NN
NEW Can





Images, wsp
 (Engelm.) Landolt & Wildi
ex Gandhi, Wiersema & Brouillet

1867. W. brasiliensis var. borealis Engelm.
1977. Wolffia borealis Landolt & … nom. inval.
2012. Wolffia borealis … ex Ghandhi, …
 auctWolffia punctata
Dotted watermeal,
Northern watermeal,
Northern duckmeal
Wolffie borèle
Native,
Likely secure
2015.09.13 13.52.47 IMG 0449 - Flickr - andrey zharkikh.jpg
Wolffia borealis NY-dist-map.png
NYFA-4
USDA-NN
NEW 
ARS ITIS
FNA Trop.



Images, wsp
 Wedd.

    Bruniera punctata
    Wolffia punctata Griseb.
    Wolffia papulifera
Brazilian watermeal Native,
Likely secure
Wolffia brasiliensis BB-1913-2.png
Wolffia brasiliensis NY-dist-map.png
NYFA-4
USDA-N0
NEW 
ARS ITIS
FNA 



Images, wsp

Subfamily Aroideae[edit]

Tribe Calleae[edit]

Calla[edit]
Calla palustris - water arum
Calla palustris is the sole species of the genus and is native to cool wetlands of the Northern Hemisphere, including those in New York State.
Alismatales — Araceae — Aroideae — Calleae
Calla Callalily N.Y. Status Images Distribution NY NE
 L.

1753. Calla palustris L.
Wild calla,
Water arum
Calla des marais
Native,
Secure

OBL

Perennial,
Herb-forb
Calla palustris5.JPG
Nymap.svg
NYFA-5
USDA-NN
NEW Can
ARS ITIS
FNA 



Images, wsp

Tribe Peltandreae[edit]

Peltandra[edit]
Alismatales — Araceae — Aroideae — Peltandreae
Peltandra Arrow-arum N.Y. Status Images Distribution NY NE

Green arrow-arum,
Tuckahoe
Native,
Secure
Peltandra virginica MA.jpg
Nymap.svg
NYFA-5
USDA-NN






Images, wsp

Tribe Arisaemateae[edit]

Arisaema[edit]
Two species of Arisaema are native to New York: A. triphyllum (Jack-in-the-Pulpit) and A. dracontium (Green dragon).
Three subspecies of Jack-in-the-Pulpit have been reported in New York. A. triphyllum ssp. triphyllum, a tetraploid with 2n:56 chromosomes, likely originated as a hybrid of subspecies stewardsonii and pusillum, each of which is a diploid with 2n:28 chromosomes.[1]
Alismatales — Araceae — Aroideae — Arisaemateae — Arisaema
ArisaemaMart.sect. Pedatisecta[1] Jack-in-the-pulpit N.Y. Status Images Distribution NY NE
 (L.) Schott
ssp. triphyllum

1753. Arum triphyllum L.
1832. Arisaema triphyllum (L.) Schott
1835. Arisaema atrorubens (Aiton) Blume
Common Jack-in-the-pulpit,
Indian Jack-in-the-pulpit,
Indian-turnip
Arisème petit-prêcheur
Native,
Secure
Arisaema triphyllum SCA-01641.jpg
Arisaema triphyllum ssp triphyllum NY-dist-map.png
NYFA-5
USDA-N
NEW Can

FNA Trop.



Images, wsp
ssp. stewardsonii (Britton) Huttl.

1901. Arisaema stewardsonii Britton
1910. A. triphyllum var. stewardsonii Stevens
1920. A. triphyllum fo. stewardsonii Engl.
1949. A. triphyllum ssp. stewardsonii Huttl.
Swamp Jack-in-the-pulpit,
Stewardson's Jack...
Arisème de Stewardson,
Arisèma de Stewardson
Native,
Secure
Arisaema triphyllum ssp. stewardsonii.png
Arisaema triphyllum ssp stewardsonii NY-dist-map.png
NYFA-5
USDA-N
Can

FNA Trop.



Images, wsp
ssp. pusillum (Peck) Huttl.

1898. A. triphyllum var. pusillum Peck
1901. Arisaema pusillum (Peck) Nash
1903. Arisaema acuminatum Small
1921. A. triphyllum var. acuminatum Engl.
1940. A. triphyllum fo. pusillum Fernald
1949. A. triphyllum ssp. pusillum Huttl.
Small jack-in-the-pulpit,
Peck's jack-in-the-pulpit
Arisème nain
Native,
Vulnerable
Arisaema triphyllum ssp. pusillum.png
Arisaema triphyllum ssp pusillum NY-dist-map.png
NYFA-3
USDA-N
Can

FNA Trop.



Images, wsp
ArisaemaMart.sect. Tortuosa[1] Green-dragon N.Y. Status Images Distribution NY NE
 (L.) Schott

1753. Arum dracontium L.
1832. Arisaema dracontium (L.) Schott
1903. Muricauda dracontium (L.) Small
Green dragon,
Dragon root,
Dragon arum
Arisème dragon,
Arisèma dragon
Native,
Likely secure
Arisaema dracontium - Green Dragon.jpg
Arisaema dracontium NY-dist-map.png
NYFA-4
USDA-NN
NEW Can
ARS 
FNA Trop.



Images, wsp
Pinellia[edit]
Alismatales — Araceae — Aroideae — Arisaemateae — Pinellia
Pinellia Pinellia N.Y. Status Images Distribution NY NE

Crowdipper,
Green dragon
Introduced Pinellia ternata inlf-inside-abrimaal1.jpg
Pinellia ternata NY-dist-map.png
NYFA-X






Images, wsp

Tribe Pistieae[edit]

Araceae[edit]
Alismatales — Araceae — Aroideae — Pistieae
Pistia Water-lettuce N.Y. Status Images Distribution NY NE
 L.

1753. Pistia stratiotes L.
1803. Pistia spathulata Michx.
1878. Pistia stratiotes var. spathulata
Engl.
Water-lettuce,
Tropical duckweed,
Nile cabbage
Laitue d'eau
Introduced from
 US South,
 South America,
 Africa,
Potentially invasive,
NYIS: 62%[1],
Impersistent
Starr 061108-9789 Pistia stratiotes.jpg
Pistia stratiotes nymap.svg
NYFA-X
USDA-N0
Can
ARS ITIS
Trop.



Images, wsp

Family Tofieldiaceae[edit]

Triantha[edit]

Alismatales — Tofieldiaceae
Triantha Tofieldia N.Y. Status Images Distribution NY NE
 (Michx.) Baker

Sticky false-asphodel Native,
Endangered
Triantha glutinosa.jpg
Triantha glutinosa NY-dist-map.png
NYFA-1
USDA-NN
NEW 



LBJ

Images, wsp

Family Alismataceae[edit]

The Alismataceae (water-plantain family) has about a dozen documented taxa in three genera growing outside of cultivation in New York.

Sagittaria[edit]

Sagittaria latifolia
broad-leaved arrowhead

Alismatales — Alismataceae — Sagittaria
Sagittaria Arrowhead N.Y. Status Images Distribution NY NE

Broad-leaved arrowhead,
Wapato,
Common arrowhead,
Duck-potato
Native, C:3,
Secure

OBL

Perennial,
Herb-forb
Sagittaria latifolia WFNY-001.png
Sagittaria latifolia NY-dist-map.png
NYFA-5
USDA-N
NEW 





Images, wsp

Sessile-fruited arrowhead Native, C:6,
Secure

OBL

Perennial,
Herb-forb
Sagittaria rigida drawing.png
Sagittaria rigida NY-dist-map.png
NYFA-5
USDA-N
NEW 





Images, wsp
ssp. graminea

Grass-leaved arrowhead Native, C:8,
Secure

OBL

Perennial,
Herb-forb
Sagittaria graminea.jpg
Sagittaria graminea ssp graminea NY-dist-map.png
NYFA-5
USDA-N
NEW 





Images, wsp

Northern arrowhead,
Wapato,
Wapatum arrowhead
Native, C:6,
Secure

OBL

Perennial,
Herb-forb
Fig. 04 Sagittaria cuneata 4x3.jpg
Sagittaria cuneata NY-dist-map.png
NYFA-5
USDA-NN
NEW 





Images, wsp

Acid-water arrowhead,
Engelmann arrowhead
Native, C:9,
Likely secure

OBL

Perennial,
Herb-forb
Sagittaria engelmanniana drawing.png
Sagittaria engelmanniana NY-dist-map.png
NYFA-4
USDA-N
NEW 





Images, wsp

Strap-leaved arrowhead Native, C:7,
Rare

OBL

Perennial,
Herb-forb
Sagittaria subulata drawing.png
Sagittaria subulata NY-dist-map.png
NYFA-3
USDA-N
NEW 





Images, wsp
ssp. spongiosa

    Lophotocarpus spathulatus
    Lophotocarpus spongiosus
    Sagittaria spathulata
    S. calycina var. spongiosa
Spongy-leaved arrowhead,
Tidal arrowhead,
Spongy arrowhead,
Hooded arrowhead
Native, C:7,
Threatened

OBL

Annual,
Herb-forb
Sagittaria montevidensis 002.JPG
Sagittaria montevidensis ssp spongiosa NY-dist-map.png
NYFA-2
USDA-N
NEW 

FNA 



Images, wsp

Slender arrowhead,
Quill-leaved sagittaria
Native, C:10,
Endangered

OBL

Perennial,
Herb-forb
Sagittaria teres drawing.png
Sagittaria teres NY-dist-map.png
NYFA-1
USDA-N
NEW 

FNA 



Images, wsp
Sagittaria (excluded species) Arrowhead N.Y. Status Images Distribution NY NE
(J.G.Sm.) Small

1897. S. longirostra var. australis
1903. S. australis (J.G.Sm.) Small
 auct. S. engelmanniana ssp. longirostra
 auct. S. longirostranon J.G.Sm.
Longbeak arrowhead,
Appalachian arrowhead
N. America native,
N.Y. excluded
Sagittaria australis Mohr-1901.png
Nymap.svg
NYFA-XCLD
USDA-N
NEW 
ARS 
FNA Trop.



Images, wsp

Alisma[edit]

Alismatales — Alismataceae — Alisma
Alisma Water-plantain N.Y. Status Images Distribution NY NE

    
    
    
Southern water-plantain,
Broad-leaved water-plantain
Native, C:4,
Secure

OBL

Perennial,
Herb-forb
Alisma subcordatum - Water Plantain.jpg
Alisma subcordatum NY-dist-map.png
NYFA-5
USDA-N
NEW 





Images, wsp
Pursh

    Alisma triviale Pursh
    A. plantago-aquatica L. misappl.
Northern water-plantain Native, C:4,
Secure

OBL

Perennial,
Herb-forb
Alisma triviale.jpg
Alisma triviale NY-dist-map.png
NYFA-5
USDA-N
NEW 





Images, wsp
Lej.

    
    
    
Narrow-leaved water-plantain,
Grass-leaved water-plantain,
Ribbonleaf water-plantain
Native, C:7,
Threatened

OBL

Perennial,
Herb-forb
Alisma gramineum plant.jpg
Alisma gramineum NY-dist-map.png
NYFA-2-3
USDA-N
NEW 





Images, wsp
Note: [1]

Helanthium[edit]

Alismatales — Alismataceae — Helanthium
Helanthium Burhead N.Y. Status Images Distribution NY NE
(Mart. ex Schult.f.) Britton

1830. Alisma tenellum Mart. ex Schult.f.
1856. Echinodorus parvulus Engelm.
1868. Echinodorus tenellus Buchenau
1905. Helanthium tenellum Britton
North American
  dwarf burhead,
Mud-babies,
Pygmy chain sword
Native,
Likely extirpated
Helanthium tenellum - Mutis-2.png
Helanthium tenellum nymap.svg
NYFA-Z
USDA-NN
NEW 
ARS ITIS
FNA Trop.



Images, wsp

Family Butomaceae[edit]

Butomus[edit]

Butomus umbellatus
flowering rush
The sole species of Butomaceae (the flowering rush family) is the aquatic Eurasian plant Butomus umbellatus, which is listed as moderately invasive in New York. Its first appearance in North America was in the St. Laurence River in 1897, and it is now a problem weed in the Great Lakes.[1]

Studies by L. C. Anderson in 1974 found that the naturalized North American Butomus populations had separate sources. Those east of Niagara Falls, introduced near the St. Lawernce River, originated in eastern Asia. Those west of the Falls were introduced near Detroit, and were from western Euraasia. R. L. Stuckey, in 1994, recognized these two groups as separate species, with B. umbellatus, from western Eurasia, found west of the Falls, and B. junceus, from eastern Asia, found east of the falls.[2] B. junceus is not widely accepted as a separate species at this time, but if it were to be accepted, New York's populations would probably be considered to be B. junceus.[3][4]


Alismatales — Butomaceae — Butomus
Butomus Flowering rush N.Y. Status Images Distribution NY NE
 L.

1753. Butomus umbellatus L.
1837. Butomus junceus Turcz.
Flowering rush,
Water gladiolus,
Grass rush
Butome à ombelle,
Jonc fleuri
Introduced from
 Eurasia,
 northern Africa,
Moderately invasive,
NYIS: 64%[1],
NE-1[2]
Butomus umbellatus Sturm-04007.png
Butomus umbellatus nymap.svg
NYFA-X
USDA-X
NEW Can
ARS ITIS
FNA Trop.
NSE BNA
IPN 

Images, wsp
  1. New York non-native plant invasiveness assessmentButomus umbellatus: Moderate (64). M.J.Jordan, G.Moore & T.W.Weldy (2008). Invasiveness ranking system for non-native plants of New York. Unpublished. The Nature Conservancy, Albany & Cold Spring Harbor, NY; Brooklyn Botanic Garden, Brooklyn, NY.
  2. Category 1 Plants - highly invasive - Eastern Region invasive plants, ranked by degree of invasiveness as based on information from States (1998) US Forest Service

Family Hydrocharitaceae[edit]

The Hydrocharitaceae (tape-grass family) ...

Subfamily Hydrocharitoideae[edit]

Hydrocharis[edit]

Hydrocharis morsus-ranae - European frog's-bit
Frog's-bit is a recent invader of northern New York State.
Alismatales — Hydrocharitaceae — Hydrocharitoideae — Hydrocharis
Hydrocharis Frog-bit N.Y. Status Images Distribution NY NE
 L.

1753. Hydrocharis Morsus ranae L.
1827. Pontederia dubia Blume
1925. H. dubia (Blume) Backer
Common frogbit,
European frog-bit,
Frog's bit
Hydrocharide grenouillette,
Grenouillette,
Morène,
Petit nénuphar
Introduced from
 Eurasia,
 northern Africa,
Very highly invasive,
NYIS: 86%[1],
Prohibited[2]
Hydrocharis morsus-ranae 2017-08-06 3636.jpg
Hydrocharis morsus-ranae nymap.svg
NYFA-X
USDA-XX
NEW Can
ARS ITIS
FNA Trop.
NSE BNA
IPN 

Images, wsp
  1. New York non-native plant invasiveness assessmentHydrocharis morsus-ranae: Very high (86). M.J.Jordan, G.Moore & T.W.Weldy (2008). Invasiveness ranking system for non-native plants of New York. Unpublished. The Nature Conservancy, Albany & Cold Spring Harbor, NY; Brooklyn Botanic Garden, Brooklyn, NY.
  2. New York State Department of Environmental Conservation Regulation 6 NYCRR Part 575 Prohibited and Regulated Invasive Species

Egeria[edit]

Alismatales — Hydrocharitaceae — Hydrocharitoideae — Egeria
Egeria Waterweed N.Y. Status Images Distribution NY NE
 Planch.

1849. Egeria densa Planch.
1857. Elodea densa Casp.
1931. Anacharis densa Vict.
1933. Philotria densa Small
Brazilian waterweed,
Brazilian elodea,
South American waterweed
Introduced from
 Brazil,
Highly invasive,
NYIS: 75%[1],
Prohibited[2],
NE-2[3]
Wasserpest.jpg
Egeria densa nymap.svg
NYFA-X
USDA-XW
NEW Can
ARS ITIS
FNA Trop.



Images, wsp

Limnobium[edit]

Alismatales — Hydrocharitaceae — Hydrocharitoideae — Limnobium
LimnobiumRich. 1814 Spongeplant N.Y. Status Images Distribution NY NE
(Bosc) Rich. ex Steud.

1807. Hydrocharis spongia Bosc
1814. Limnobium spongia Rich.
1818. Hydrocharis cordifolia Nutt.
1840. Limnobium spongia Steud.
American frogbit,
American spongeplant
Introduced,
US South native,
Impersistent
Limnobium spongia BB-1913.png
Limnobium spongia NY-dist-map.png
NYFA-X
USDA-N0
NEW-0
ARS ITIS
FNA Trop.



Images, wsp

Subfamily Stratiotoideae[edit]

Stratiotes[edit]

Alismatales — Hydrocharitaceae — Stratiotoideae — Stratiotes
Stratiotes Water-aloe N.Y. Status Images Distribution NE
 L.

1753. Stratiotes aloides L.
Water-soldiers,
Water-aloe
Stratiote faux-aloès,
Faux-aloès,
Aloès d'eau
Introduced from
 Eurasia,
Potentially invasive,
NYIS: Not ranked[1]
Water soldier plants.JPG
Stratiotes aloides nymap.svg

USDA-00
Can
ARS ITIS
Trop.
BNA


Images, wsp
Note: CA

Subfamily Anacharidoideae[edit]

Elodea[edit]

Alismatales — Hydrocharitaceae — Anacharidoideae
Elodea Waterweed N.Y. Status Images Distribution NY NE
L.Rich. ex Michx.

Canadian waterweed,
Common waterweed,
Broad waterweed
Native,
Secure
Elodea canadensis2 ies.jpg
Elodea canadensis NY-dist-map.png
NYFA-5
USDA-NN






Images, wsp
(Planch.) St. John

Nuttall's waterweed Native,
Secure
ElodeaNuttallii2.jpg
Elodea nuttallii NY-dist-map.png
NYFA-5
USDA-NN






Images, wsp
 H.St.John

    E. longivaginata H.St.John
    E. nevadensis (Planch.) H,St.John
Twoleaf waterweed,
Two-leaved waterweed,
Long-sheath waterweed
Introduced,
Western native
Herne - Kanal - Osthafen 06 ies.jpg
No counties NY-dist-map.png
NYFA-X
USDA-NN






Images, wsp

Subfamily Najadoideae[edit]

Tribe Najadeae[edit]

Najas[edit]
Alismatales — Hydrocharitaceae — Najadoideae — Najadeae — Najas
Najas Waternymph / Naiad N.Y. Status Images Distribution NY NE
(Willd.) Rostk. & W.L.E.Schmidt

1798. Caulinia flexilis Willd.
1803. Najas canadensis Michx.
1824. N. flexilis Rostk. & W.L.E.Schmidt
1942. N. flexilis ssp. caespitosus
1975. N. caespitosus (Maguire) Reveal
Slender naiad,
Slender naias,
Slender water-nymph,
Nodding water-nymph,
Bushy naiad,
Northern water-nymph,
Wavy waternymph
Native,
Secure
BB-0213 Naias flexilis.png
Nymap.svg
NYFA-5
USDA-NN
NEW 
ARS 
FNA 
NSE 


Images, wsp
(A.Braun ex Engelm.) Magnus

1867. Najas indica var. gracillima
1870. Najas gracillima Magnus
Thread-like naiad,
Thread-like water-nymph,
Slender waternymph
Native,
Likely secure
Najas gracillima seeds.JPG
Nymap.svg
NYFA-4
USDA-NN
NEW 





Images, wsp
(Spreng.) Magnus
ssp. guadalupensis

1825. Caulinia guadalupensis Spreng.
1870. Najas guadalupensis Magnus
Southern water-nymph,
Southern naiad
Native,
Secure
BB-0214 Naias guadalupensis.png
Najas guadalupensis ssp guadalupensis nymap.svg
NYFA-5
USDA-NN
NEW 
ARS ITIS
FNA Trop.



Images, wsp
(Spreng.) Magnus
ssp. muenscheri
(R.T.Clausen) R.R.Haynes & Hellq.

1937. Najas muenscheri R.T.Clausen
1979. N.g. var. muenscheri
1996. N.g. ssp. muenscheri
Hudson River water-nymph,
Muenscher's water-nymph,
Mermaid weed
Native,
Endangered,
NYNHP: 1
Endemic[1]
Najas guadalupensis NRCS-1.jpg
Najas guadalupensis ssp muenscheri nymap.svg
NYFA-1E
USDA-N0

ITIS
FNA Trop.



Images, wsp
(Spreng.) Magnus
ssp. olivacea
(Rosend. & Butters) R.R.Haynes & Hellq.

1935. N. olivacea Rosend.& Butters
1979. N. guadalupensis var. olivacea
1996. N. guadalupensis ssp. olivacea
Guadalupe water-nymph,
Southern naiad
Native,
Endangered
Najas guadalupensis NRCS-4x3.jpg
Najas guadalupensis ssp olivacea nymap.svg
NYFA-1
USDA-NN
NEW 

FNA Trop.



Images, wsp
 L.

1753. Najas marina L.
1893. Najas gracilis Morong
1903. Najas gracilis Small
Spiny water-nymph,
Spiny naiad,
Holly-leaved naiad,
Prickly waternymph
Native,
Endangered
JCS Najas marina 01544.jpg
Najas marina nymap.svg
NYFA-1
USDA-NN

ARS 
FNA Trop.



Images, wsp
All.

1773. Najas minor All.
1807. Fluvialis minor Pers.
1808. Ittnera minor C.C.Gmel.
1845. Caulinia minor Coss. & Germ.
Brittle water-nymph Introduced from
 Eurasia,
 n. Africa,
Potentially invasive,
[2]
Najas minor NRCS-4x3.jpg
Najas minor nymap.svg
NYFA-X
USDA-XX
NEW 
ARS 
FNA Trop.



Images, wsp
Hydrilla[edit]
Alismatales — Hydrocharitaceae — Najadoideae — Najadeae — Hydrilla
Hydrilla Water-thyme N.Y. Status Images Distribution NY NE
 (L.f.) Royle

1782. Serpicula verticillata L.f.
1824. Udora verticillata Spreng.
1839. Hydrilla verticillata Royle
1888. Elodea verticillata F.Muell.
Hydrilla,
Florida elodea,
Waterthyme,
Water-thyme,
Esthwaite waterweed
Introduced from
 Eurasia, Africa,
 Australia,
Very highly invasive,
NYIS: 91%[1],
Discovered 2008.[2]
Hydrilla verticillata is it- in Hyderabad W2 IMG 8305.jpg
Hydrilla verticillata nymap.svg
NYFA-X1
USDA-X0
NEW 
ARS ITIS
FNA Trop.



Images, wsp
  1. New York non-native plant invasiveness assessmentHydrilla verticillata: Very high (91).
  2. Three large infestations of Hydrilla were discovered in Orange and Suffolk Counties in 2008.

Tribe Vallisnerieae[edit]

Vallisneria[edit]
Alismatales — Hydrocharitaceae — Najadoideae — Vallisnerieae
Vallisneria Eelgrass N.Y. Status Images Distribution NY NE
 Michx.

Eel-grass,
Tape-grass,
Water-celery,
Wild-celery
Native,
Secure
Vallisneria americana UMFS 2.JPG
Vallisneria americana NY-dist-map.png
NYFA-5
USDA-NN






Images, wsp

Family Scheuchzeriaceae[edit]

The monotypic Scheuchzeriaceae (scheuchzeria family)

Scheuchzeria[edit]

Alismatales — Scheuchzeriaceae — Scheuchzeria
Scheuchzeria Rannoch-rush N.Y. Status Images Distribution NY NE
 L.

    S. americana (Fernald) G.N.Jones
    S. palustris var. americana Fernald
American scheuchzeria,
Rannoch-rush
Native,
Vulnerable
ScheuchzeriaPalustris2.jpg
Scheuchzeria palustris NY-dist-map.png
NYFA-3
USDA-NN
NEW 





Images, wsp

Family Juncaginaceae[edit]

The Juncaginaceae (arrowgrass family)

Triglochin[edit]

Alismatales — Juncaginaceae — Triglochin
Triglochin Arrowgrass N.Y. Status Images Distribution NY NE
 L.

Seaside arrowgrass Native,
Likely secure
Triglochin maritima baie-authie 80 29042007 6.jpg
Triglochin maritima NY-dist-map.png
NYFA-4
USDA-NN






Images, wsp
 L.

Slender bog arrow-grass Native,
Threatened
Triglochin palustris 02.jpg
Triglochin palustris NY-dist-map.png
NYFA-2
USDA-NN






Images, wsp

Family Ruppiaceae[edit]

The Ruppiaceae (ditch-grass family)

Ruppia[edit]

Ruppia maritima
ditch-grass

Alismatales — Ruppiaceae — Ruppia
Ruppia Widgeonweed N.Y. Status Images Distribution NY NE
 L.

1753. Ruppia maritima L.
1915. Buccaferrea maritima Lunell
Ditch-grass,
Beaked ditchgrass,
Widgeongrass,
Sea ditchgrass,
Tassel pondweed
Ruppie maritime,
Persil d'eau
Native,
Vulnerable

OBL

Perennial,
Herb-forb
Ruppia maritima South Chungcheong, South Korea 27 Jun 2006.jpg
Nymap.svg
NYFA-3-4
USDA-NN
NEW Can
ITIS
FNA Trop.
NSE BNA


Images, wsp

Family Zosteraceae[edit]

The Zosteraceae (eelgrass family)

Zostera[edit]

Alismatales — Zosteraceae — Zostera
Zostera Eelgrass N.Y. Status Images Distribution NY NE
 L. (1753)

Zostera pacifica L.
Eelgrass,
Seawrack,
Zostére marine
Native,
Vulnerable
Zostera marina.jpeg
Zostera marina NY-dist-map.png
NYFA-3
USDA-NN

ITIS
FNA 



Images, wsp

Family Potamogetonaceae[edit]

The Potamogetonaceae (pond-weed family)

Zannichellia[edit]

Alismatales — Potamogetonaceae — Zannichellia
Zannichellia Horned pondweed N.Y. Status Images Distribution NY NE
 L.

1753. Zannichellia palustris L.
Horned pondweed Native,
Secure
ZannichelliaPalustris3.jpg
Zannichellia palustris NY-dist-map.png
NYFA-5
USDA-NN
NEW Can
ITIS
FNA 



Images, wsp

Potamogeton[edit]

The Potamogeton (pondweed) subdivisions used here are from Lindqvist et al. (2006).[1] Chromosome numbers are from Kaplan et al. (2013).[2]

Potamogeton clade 1A[edit]

Alismatales — Potamogetonaceae — Potamogeton — clade 1A
Potamogetonclade 1A Pondweed N.Y. Status Images Distribution NY NE
 Oakes

Robbins' pondweed,
Flat-leaved pondweed,
Fern pondweed
Potamot de Robbins
Native,
Secure,
2n = 52
Potamogeton robbinsii NRCS-002.jpg
Nymap.svg
NYFA-5
USDA-NN
NEW 

FNA 



Images, wsp
 L.

1753. Potamogeton crispus  L.
Curly pondweed,
Curled pondweed
Potamot crepu
Introduced from
 Eurasia,
 northern Africa,
 Australia,
Very highly invasive,
NYIS: 80%[1],
NE-1[2] Note[3],
2n = 52
Potamogeton crispus1.jpg
Potamogeton crispus NY-dist-map.png
NYFA-X
USDA-XX
NEW 
ARS 
FNA 



Images, wsp
  1. New York non-native plant invasiveness assessmentPotamogeton crispus: Very high (80).
  2. Category 1 Plants - highly invasive - Eastern Region invasive plants, ranked by degree of invasiveness as based on information from States (1998) US Forest Service
  3. The exotic invasive Potamogeton crispus is easily recognized by being the only species in North America with serrate leaves (Flora of North America).

Potamogeton clade 1B[edit]

Alismatales — Potamogetonaceae — Potamogeton — clade 1B
Potamogetonclade 1B Pondweed N.Y. Status Images Distribution NY NE
 L.

    
    
    
Floating pondweed,
Floating-leaved pondweed
Native, C:4,
Secure

OBL

Perennial,
Herb-forb,
2n = 52
Potamogeton natans.jpg
Nymap.svg
NYFA-5
USDA-NN
NEW 





Images, wsp
 Poir.

1816. Potamogeton nodosus Poir.
1848. P. lonchites Tuck.
1893. P. americanus var. novaeboracensis
1893. P. lonchites var. novaeboracensis
Long-leaved pondweed Native, C:4,
Secure

OBL

Perennial,
Herb-forb,
2n = 52
Potamogeton nodosus.jpg
Potamogeton nodosus NY-dist-map.png
NYFA-5
USDA-NN
NEW 





Images, wsp
 L.

1753. P. perfoliatus L.
    
    
Claspingleaf pondweed,
Clasping-leaved pondweed,
Clasped pondweed,
Perfoliate pondweed
Potamot perfolié
Native, C:5,
Secure

OBL

Perennial,
Herb-forb,
2n = 52
PotamogetonPerfoliatus.jpg
Nymap.svg
NYFA-5
USDA-NN
NEW 
ARS 
FNA 



Images, wsp
(A.Benn.) Rydb.

1889. P. perfoliatus var. richardsonii
1905. P. richardsonii Rydb.
1941. P. perfoliatus ssp. richardsonii
Richardson's pondweed Native, C:6,
Secure

OBL

Perennial,
Herb-forb,
2n = 52
Potamogeton richardsonii 02.jpg
Nymap.svg
NYFA-5
USDA-NN
NEW 

FNA 



Images, wsp
Tuck. (1848)

    
    
    
Largeleaf pondweed,
Large-leaved pondweed,
Broad-leaved pondweed
Potamot à grandes feuilles
Native, C:7,
Secure

OBL

Perennial,
Herb-forb,
2n = 52
Potamogeton amplifolius NRCS-2.jpg
Potamogeton amplifolius NY-dist-map.png
NYFA-5
USDA-NN
NEW Can

FNA 



Images, wsp
J.W.Robbins

    
    
    
Oakes' pondweed Native, C:7,
Secure

OBL

Perennial,
Herb-forb,
Chro. # unk.
BB-0175 Potamogeton oakesianus.png
Potamogeton oakesianus NY-dist-map.png
NYFA-5
USDA-NN
NEW 

FNA 



Images, wsp
Wulfen

    
    
    
Whitestem pondweed,
White-stemmed pondweed
Potamot à longs pédoncules
Native, C:7,
Secure

OBL

Perennial,
Herb-forb,
2n = 52
Potamogeton praelongus bluete.jpeg
Nymap.svg
NYFA-5
USDA-NN
NEW 

FNA 



Images, wsp
 L.

    
    
    
Grassy pondweed Native, C:7,
Secure

OBL

Perennial,
Herb-forb,
n = 26
Potamogeton gramineus (3817604665).jpg
Nymap.svg
NYFA-5
USDA-NN
NEW 





Images, wsp

    
    
    
Illinois pondweed Native, C:7,
Secure

OBL

Perennial,
Herb-forb,
2n = 104
BB-0184 Potamogeton illinoensis.png
Potamogeton illinoensis NY-dist-map.png
NYFA-5
USDA-NN
NEW 





Images, wsp
(J.W. Robbins) Morong (pro sp.)

Potamogeton gramineus ×
Potamogeton illinoensis

    
    
    
Hybrid pondweed Native,
Vulnerable

OBL

Perennial,
Herb-forb,
2n = 78
Ny hybrid.svg
Nymap.svg
NYFA-3?
USDA-NN






Images, wsp

Potamogeton gramineus ×
Potamogeton perfoliatus

    
    
    
Hybrid pondweed Native,
Vulnerable

OBL

?,
Herb-forb,
2n = 52
Ny hybrid.svg
Nymap.svg
NYFA-3?
USDA-NN






Images, wsp
Hagstr.

Potamogeton illinoensis ×
Potamogeton perfoliatus

    
    
    
Hybrid pondweed Native,
Unranked

OBL

?,
Herb-forb
Ny hybrid.svg
Nymap.svg
NYFA-U
USDA-N0






Images, wsp
 Balbis

    
    
    
Alpine pondweed,
Northern pondweed,
Red pondweed
Native, C:9,
Threatened

OBL

Perennial,
Herb-forb,
2n = 52
Potamogeton alpinus out of watet.jpg
Nymap.svg
NYFA-2
USDA-NN
NEW 

FNA 



Images, wsp
 Tuck.

    
    
    
Spotted pondweed Native, C:10,
Threatened

OBL

Perennial,
Herb-forb,
chr. # unk.
BB-0177 Potamogeton pulcher.png
Nymap.svg
NYFA-2
USDA-NN
NEW 





Images, wsp
Potamogetonclade 1B (excluded species) Pondweed N.Y. Status Images Distribution NY NE

    
    
    
Shining pondweed Introduced from
 Eurasia,
 northern Africa,
N.Y. excluded

OBL,
2n = 52
Potamogeton lucens Prague 2012 4.jpg
Nymap.svg
NYFA-XCLD






Images, wsp

Potamogeton gramineus ×
Potamogeton lucens

    
    
    
Long-leaved pondweed Introduced from
 Eurasia,
 northern Africa,
N.Y. excluded

OBL,
2n = 52
Ny hybrid.svg
Nymap.svg
NYFA-XCLD






Images, wsp

Potamogeton clade 2A[edit]

Alismatales — Potamogetonaceae — Potamogeton — clade 2A
Potamogetonclade 2A Pondweed N.Y. Status Images Distribution NY NE
 Raf.

1808. Potamogeton epihydrus Raf.
1827. P. nuttallii Cham. & Schltdl.
1894. P. nuttallii var. ramosus
1924. P. epihydrus var. ramosus
1932. P. epihydrus var. typicus (i)
1932. P. epihydrus var. nuttallii
1965. P. epihydrus ssp. nuttallii
Ribbon-leaved pondweed,
Nuttall's pondweed
Native, C:6,
Secure

OBL

Perennial,
Herb-forb,
2n = 26
Potamogeton epihydrus NRCS-1.jpg
Nymap.svg
NYFA-5
USDA-NN
NEW 

FNA Trop.



Images, wsp

Potamogeton clade 2B[edit]

Alismatales — Potamogetonaceae — Potamogeton — clade 2B
Potamogetonclade 2B Pondweed N.Y. Status Images Distribution NY NE
 Tuck.

1817. P. dimorphus Raf.
1848. P. spirillus Tuck.
Spiral pondweed,
Northern snailseed pondweed
Potamot spirille
Native, C:7,
Secure

OBL

Perennial,
Herb-forb,
2n = 28
Potamogeton spirillus (as Potamogeton dimorphus) BB-1913.png
Nymap.svg
NYFA-5
USDA-NN
NEW Can

FNA Trop.



Images, wsp
Fernald

1893. P. diversifolius
var. trichophyllus
1932. P. bicupulatus Fernald
Snailseed pondweed,
Snail-seeded pondweed
Native, C:8,
Secure

OBL

Perennial,
Herb-forb
Potamogeton bicupulatus, NH, USA.jpg
Potamogeton bicupulatus NY-dist-map.png
NYFA-5
USDA-NN
NEW Can

FNA Trop.



Images, wsp
Rchb.

1845. P. confervoides Rchb.
    P. tuckermanii
Algae-like pondweed,
Alga pondweed,
Tuckerman’s pondweed
Potamot confervoïde
Native, C:9,
Threatened

OBL

Perennial,
Herb-forb
BB-0190 Potamogeton confervoides.png
Potamogeton confervoides NY-dist-map.png
NYFA-3
USDA-NN
NEW Can





Images, wsp
Raf. (1808)

    P. capillaceus Poir.
    P. dimorphus Raf.
Water-thread pondweed Native, C:10,
Endangered

OBL

Perennial,
Herb-forb,
2n = 28
Potamogeton diversifolius NRCS-1.jpg
Nymap.svg
NYFA-1
USDA-N0
NEW 

FNA 



Images, wsp

Potamogeton clade 2C[edit]

Alismatales — Potamogetonaceae — Potamogeton — clade 2C
Potamogetonclade 2C Pondweed N.Y. Status Images Distribution NY NE
 Raf.
ssp. foliosus

    
    
    
Leafy pondweed Native,
Secure
Potamogeton foliosus NRCS-1.jpg
Nymap.svg
NYFA-5
USDA-NN
NEW 





Images, wsp
 L.

    
    
    
Small pondweed Native,
Secure
BB-0200 Potamogeton pusillus.png
Nymap.svg
NYFA-5
USDA-NN
NEW 





Images, wsp
 Fieber

    P. berchtoldii Fieber
    P. pusillus var. tenuissimus
    P. pusillus ssp. tenuissimus
Berchtold’s pondweed Native, C:2,
Secure,
Herb-forb
PotamogetonPusillusAgg.jpg
Nymap.svg
NYFA-5
NEW 





Images, wsp
 J.W.Robbins

    
    
    
Vasey's pondweed Native,
Secure
BB-0198 Potamogeton vaseyi.png
Nymap.svg
NYFA-5
USDA-NN
NEW 

FNA 



Images, wsp
Fernald

    
    
 auct. P. compressusnon L.
Flat-stemmed pondweed,
Flatstem pondweed
Native,
Secure
Potamogeton zosteriformis NRCS-1.jpg
Nymap.svg
NYFA-5
USDA-NN
NEW 





Images, wsp

    
    
    
Fries' pondweed Native,
Likely secure
BB-0196 Potamogeton friesii.png
Nymap.svg
NYFA-4?
USDA-NN
NEW 





Images, wsp
Mert. & W.D.J. Koch

    
    
    
Blunt-leaved pondweed Native,
Likely secure
Potamogeton obtusifolius kz1.JPG
Nymap.svg
NYFA-4
USDA-NN
NEW 





Images, wsp
 Morong

    
    
    
Hill's pondweed Native,
Threatened
BB-0193 Potamogeton hillii.png
Nymap.svg
NYFA-2
USDA-NN
NEW 





Images, wsp
Hellquist & Hilton

    
    
    
Ogden's pondweed Native,
Endangered
Nymap.svg
NYFA-1
USDA-NN
NEW 





Images, wsp
 Benn.

    
    
 auct. P. rutilusnon Wolfg.
Straight-leaved pondweed,
Narrowleaf pondweed
Native,
Endangered
Nymap.svg
NYFA-1
USDA-NN
NEW 





Images, wsp
Hellquist & Crow

Potamogeton strictifolius ×
Potamogeton zosteriformis

    
    
    
Hybrid pondweed Native,
Endangered
Nymap.svg
NYFA-1?
USDA-NN






Images, wsp
Potamogetonclade 2C (excluded species) Pondweed N.Y. Status Images Distribution NY NE

1753. P. compressus L.
    
Grass-wrack pondweed,
Flatstem pondweed,
Eelgrass pondweed
Introduced from
 Eurasia,
N.Y. excluded
Potamogeton compressus.jpeg
Nymap.svg
NYFA-XCLD





Kew 
Images, wsp
Wolfg.

1827. P. rutilus Wolfg.
    
Shetland pondweed Introduced from
 Eurasia,
N.Y. excluded
BB-0197 Potamogeton rutilus.png
Nymap.svg
NYFA-XCLD





Kew 
Images, wsp

Stuckenia[edit]

Alismatales — Potamogetonaceae — Stuckenia
Stuckenia Pondweed N.Y. Status Images Distribution NY NE
 (L.) Börner

    Potamogeton pectinatus L.
    Stuckenia pectinata (L.) Börner
    Coleogeton pectinatum
(L.) Les & R.R.Haynes
Sago pondweed Native, C:2,
Secure
PotamogetonPectinatus1.jpg
Nymap.svg
NYFA-5
USDA-NN






Images, wsp
(Pers.) Börner

    
    
    
Thread-leaved pondweed,
Fineleaf pondweed
Native,
Endangered
Stuckenia filiformis ssp filiformis NRCS-1.jpg
Nymap.svg
NYFA-1
USDA-NN






Images, wsp
Stuckenia (excluded species) Pondweed N.Y. Status Images Distribution NY NE
(Turcz.) Holub

1854. Potamogeton vaginatus Turcz.
1984. Stuckenia vaginata
(Turcz.) Holub
    
Sheathed pondweed,
Big sheathed pondweed,
Large sheathed pondweed
Potamot engainé
N. America native,
Endangered
Stuckenia vaginata.jpg
Nymap.svg
NYFA-XCLD
USDA-NN


FNA 



Images, wsp

Nymphaeales & magnoliids
Flora of New York — Acorales & Alismatales
Dioscoreales & Liliales
Table of
contents
Genus
index
Protected species index Invasive species index

References[edit]