Flora of New York/Lycophytes

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Dipsacales
Flora of New York — Lycophytes
Pre-polypod
ferns
Table of
contents
Genus
index
Protected species index Invasive species index


Class Lycopodiopsida contains the lycophytes (clubmosses, firmosses and quillworts).[1][2]
tracheophytes
lycophytes
Lycopodiales : Lycopodiaceae
Lycopodielloideae

Lycopodiella spp. (5 bog cubmosses)

Pseudolycopodiella caroliniana (slender bog clubmoss)

Lycopodioideae

Dendrolycopodium spp. (3 tree cubmosses)

Diphasiastrum spp. (8 ground cedars)

Spinulum spp. (3 bristly clubmosses)

Lycopodium spp. (2 running clubmosses)

Huperzioideae

Huperzia spp. (4 firmosses)

Isoetales : Isoetaceae

Isoetes spp. (8 quillworts)

Selaginellales : Selaginellaceae

Selaginella spp. (3 spikemosses)

euphyllophytes

Polypodiopsida (ferns)

spermatophytes (seed plants)


Class Order Family Subfamily Genus Common names #
Lycopodiopsida

(lycophytes)
Lycopodiales Lycopodiaceae Lycopodielloideae Lycopodiella bog clubmoss 5
Pseudolycopodiella false bog clubmoss 1
Lycopodioideae Lycopodium clubmoss 2
Dendrolycopodium tree clubmoss 3
Spinulum interrupted clubmoss 3
Diphasiastrum ground cedar 7
Huperzioideae Huperzia firmoss 5
Isoetales Isoetaceae Isoetes quillwort 8
Selaginellales Selaginellaceae Selaginella spikemoss 3

Order Lycopodiales[edit | edit source]

The Lycopodiales ...

Family Lycopodiaceae[edit | edit source]

The Lycopodiaceae (clubmoss family) can, for identification purposes in New York State, roughly be divided into clumping (firmoss) and creeping (clubmoss) groups.
Lycopodiaceae
Huperzioideae (firmoss)

Huperzia lucidula (shining firmoss)

Huperzia appressa (mountain firmoss)

Huperzia selago (northern firmoss)

Huperzia × bartleyi (Bartley’s firmoss)

Lycopodielloideae
bog clubmoss

Lycopodiella inundata (northern bog-clubmoss)

Lycopodiella appressa (southern bog-clubmoss)

Lycopodiella alopecuroides (foxtail bog-clubmoss)

slender bog-clubmoss

Pseudolycopodiella caroliniana (Carolina clubmoss)

Lycopodioideae
running clubmoss

Lycopodium clavatum (staghorn clubmoss)

Lycopodium lagopus (one-cone clubmoss)

tree clubmoss

Dendrolycopodium obscurum (flat-branched tree clubmoss)

Dendrolycopodium dendroideum (prickly tree clubmoss)

Dendrolycopodium hickeyi (Hickey’s tree clubmoss)

bristly clubmoss

Spinulum annotinum (common bristly clubmoss)

Spinulum canadense (northern bristly clubmoss)

groundcedar

Diphasiastrum digitatum (southern ground cedar)

Diphasiastrum tristachyum (blue ground cedar)

Diphasiastrum complanatum (northern ground cedar)

Diphasiastrum sitchense (Sitka ground cedar)

clumping
(firmoss)
creeping
(clubmoss)

Subfamily Huperzioideae[edit | edit source]

The Huperzioideae, known as firmosses, have also been treated as a separate family Huperziaceae. Firmosses differ from other Lycopodiaceae in that they grow in clumps, instead of producing creeping, horizontal stems like other family members.[1] Of the three genera in this group, Huperzia is a temperate and arctic genus and is the only one found naturally in New York. Of the other two genera, Phlegmariurus is native to tropical and subtropical regions, and Phylloglossum is native to Australia and New Zealand.
Huperzia[edit | edit source]
Huperzia lucidula, shining firmoss
Commonly known as firmoss or fir-clubmoss, Huperzia (hoo-per-zee-uh) was named for Johann Peter Huperz, an early 19th century German botanist who specialized in ferns.
Lycopodiales — Lycopodiaceae — Huperzioideae — Huperzia
HuperziaBernh. (1801) Firmoss N.Y. Status Images Distribution NY NPT
 (Michx.) Trevis.

1803. Lycopodium lucidulum Michx.
1875. Huperzia lucidula Trevis.
1939. Urostachys lucidulus
Herter ex Nessel
1965. Huperzia selago ssp. lucidula
Shining firmoss,
Shining clubmoss,
Shining fir-clubmoss
Lycopode brillant,
Huperzie brillant
Native, C:5,
Secure
Lycopodium lucidulum témis 2x3.jpg
Huperzia lucidula nymap.svg
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(Desv.) A.Löve & D.Löve

1827. Lycopodium selago var. appressum
1961. H. appressa A.Löve & D.Löve
1992. H. appalachiana Beitel & Mickel
Appalachian firmoss,
Appalachian clubmoss,
Appalachian fir-clubmoss,
Mountain firmoss,
Mountain fir-clubmoss
Lycopode des Appalaches
Native, C:9,
Rare,
NYNHP: 3[1]
Huperzia appressa 2x3.jpg
Huperzia appressa nymap.svg
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(L.) Bernh. ex Schrank & Mart.

1753. Lycopodium selago L.
1778. Lycopodium densum Lam.
1805. Plananthus selago P.Beauv.
1821. Lycopodium abietiforme Gray
1829. Huperzia selago Schrank & Mart.
1923. Urostachys selago Herter
1955. Mirmau selago H.P.Fuchs
Northern fir-moss,
Fir clubmoss
Lycopode sélagine,
Huperzie sélagine
Native, C:10,
Endangered
Huperzia selago Suldgrabe1.jpg
Huperzia selago nymap.svg
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(Cusick) Kartesz & Gandhi

Huperzia lucidula ×
Huperzia porophila

1987. Lycopodium × bartleyi Cusick
1991. H. × bartleyi Kartesz & Gandhi
Bartley's clubmoss Native,
Unranked
Ny hybrid.svg
Huperzia × bartleyi nymap.svg
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Huperzia (excluded taxa) Firmoss N.Y. Status Images Distribution NY NPT
(F.E.Lloyd & Underw.) Holub

1900. Lycopodium porophilum
F.E.Lloyd & Underw.
1903. L. selago var. porophilum
1905. L. lucidulum var. porophilum
1939. Urostachys lucidulus var. porophilus
1985. Huperzia porophila Holub
Rock clubmoss,
Rock firmoss,
Lloyd's clubmoss
Lycopode porophile
N. America native,
N.Y. excluded
Huperzia porophila-2a.jpg
Excluded nymap.svg
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(Clute) Kartesz & Gandhi

1903. L. lucidulum fo. occidentale
1932. L. lucidulum var. occidentale
1966. L. selago var. occidentale
1967. L. lucidulum var. tryonii
1991. H. occidentalis
(Clute) Kartesz & Gandhi
Pacific Clubmoss

Lycopode de l'Ouest
N. America native
 Northwest,
N.Y. excluded

Perennial,
Heerb-forb
Excluded nymap.svg
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(Abbe) Kartesz & Gandhi

Huperzia lucidula ×
Huperzia selago

1953. Lycopodium × buttersii Abbe
1991. H. × buttersii Kartesz & Gandhi
Butters' club-moss,
Butters' firmoss
Lycopode de Butters
N. America native,
N.Y. excluded
Ny hybrid.svg
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A.Haines

Huperzia appressa ×
Huperzia lucidula

2003. Huperzia × protoporophila A.Haines
Hybrid rock firmoss N. America native,
No N.Y. reports
Ny hybrid.svg
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 A. Haines

Huperzia appressa ×
Huperzia selago

2003. Huperzia × beitelii A.Haines illeg.
2003. Huperzia × josephbeitelii A. Haines
Beitel's firmoss,
Joseph Beitel's clubmoss
N. America native,
No N.Y. reports
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Subfamily Lycopodioideae[edit | edit source]

Lycopodium[edit | edit source]
Running clubmoss
The genus name Lycopodium (lī-kə-ˈpō-dē-əm) was derived from the Greek lukos (wolf) and podion (small foot). It is commonly known as running clubmoss.

Also treated as Lycopodium sect. Lycopodium.


Lycopodiales — Lycopodiaceae — Lycopodioideae — Lycopodium
Lycopodium Running clubmoss N.Y. Status Images Distribution NY NPT
 L.

1753. Lycopodium clavatum L.
    L. clavatum var. laurentianum
    L. clavatum var. subremotum
    L. clavatum var. tristachyum
Common clubmoss,
Running clubmoss,
Running pine,
Running cedar,
Staghorn clubmoss,
Elk moss
Lycopode à massue
Native, C:5,
Secure
LycopodiumClavatum.jpg
Lycopodium clavatum nymap.svg
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(Laest. ex Hartm.) Zinserl. ex Kuzen

1953. Lycopodium lagopus Zinserl. ex Kuzen
    L. clavatum var. brevispicatum
    L. clavatum var. integerrimum
    L. clavatum var. megastachyon
    L. clavatum var. monostachyon
One-cone clubmoss,
One-cone ground-pine,
Running pine,
Running cedar,
Arctic stag's-horn clubmoss
Lycopode patte-de-lapin
Native, C:4,
Likely secure
Lycopodium lagopus iNat-100397035.jpg
Lycopodium lagopus nymap.svg
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Dendrolycopodium[edit | edit source]
Tree clubmoss
From Greek δενδρος (denros: tree), λυκος (lukos: wolf), and ποδιων (podion: legs), Dendrolycopodium (den-drō-lī-kə-ˈpō-dē-əm) contains tree-clubmoss species, which are fairly erect and have branched stems. This genus, also treated as Lycopodium sect. Obscura, is characterized by stalked terminal strobili, which contain their sporangia.
Lycopodiales — Lycopodiaceae — Lycopodioideae — Dendrolycopodium
Dendrolycopodium Tree clubmoss N.Y. Status Images Distribution NY NPT
(L.) A.Haines

1753. Lycopodium obscurum L.
2003. Dendrolycopodium obscurum
(L.) A.Haines
Ground pine,
Princess-pine,
Eastern tree clubmoss,
Rare clubmoss,
Flat-branch tree clubmoss
Lycopode obscur
Native, C:5,
Secure

FACU
Lycopodium obscurum (homeredwardprice) 001.jpg
Dendrolycopodium obscurum nymap.svg
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(Michx.) A.Haines

1803. Lycopodium dendroideum Michx.
1890. L. obscurum var. dendroideum
1916. L. obscurum var. hybridum
2003. Dendrolycopodium dendroideum
(Michx.) A. Haines
Prickly tree clubmoss,
Northern tree clubmoss,
Treelike clubmoss,
Prickle tree club-moss
Lycopode dendroïde
Native, C:5,
Secure

FACU
Dendrolycopodium dendroideum iNat-100397591.jpg
Dendrolycopodium dendroideum nymap.svg
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(W.H.Wagner, Beitel, & Moran) A.Haines

    L. obscurum var. isophyllum
Pennsylvania clubmoss,
Hickey's tree club-moss
Native, C:5,
Secure

Perennial,
Herb
Dendrolycopodium hickeyi iNat-98729163.jpg
Dendrolycopodium hickeyi nymap.svg
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Spinulum[edit | edit source]

Spinulum (ˈspīn-yə-ləm) is also treated as Lycopodium sect. Annotina.

Lycopodiales — Lycopodiaceae — Lycopodioideae — Spinulum
Spinulum Bristly clubmoss N.Y. Status Images Distribution NY NPT
 (L.) A.Haines

1753. Lycopodium annotinum L.
1772. Lycopodium dubium Zoëga
2003. Spinulum annotinum A.Haines
Common bristly clubmoss,
Common stiff clubmoss,
Interrupted clubmoss
Lycopode interrompu
Native, C:5,
Secure
Lycopode au Creux du Van - img 19577.jpg
Spinulum annotinum nymap.svg
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 (Nessel) A.Haines

1772. Lycopodium dubiumauct. non Zoëga
1842. L. annotinum var. pungens Desv.
1842. L. pungens La Pylaie ex Desv.
1843. L. annotinum var. montanum Tuck.
1940. L. canadense Nessel
1968. L. annotinum ssp. pungens Hultén
2003. Spinulum canadense A.Haines
Northern bristly clubmoss,
Northern stiff clubmoss,
Northern interrupted clubmoss
Native, C:10,
Endangered
Lycopodium annotinum PID1478-1.jpg
Spinulum canadense nymap.svg
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Hybrid bristly clubmoss Native,
Unranked
Lycopodium annotinum 1127942872.jpg
Spinulum annotinum × canadense nymap.svg
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Diphasiastrum[edit | edit source]

Also treated as Lycopodium sect. Complanata.

Lycopodiales — Lycopodiaceae — Lycopodioideae — Diphasiastrum
DiphasiastrumHolub (1975) Ground-cedar N.Y. Status Images Distribution NY NPT
(Dill. ex A.Braun) Holub

1848. Lycopodium digitatum Dill. ex A.Braun
1901. Lycopodium complanatum var. flabelliforme
1911. L. flabelliforme (Fernald) Blanch.
1965. Diphasium complanatum ssp. flabelliforme
1975. Diphasiastrum digitatum
(Dill. ex A.Braun) Holub
Southern groundcedar,
Southern ground-cedar,
Fan club-moss,
Southern running-pine
Lycopode en éventail,
Courants verts,
Lycopode aplati
  variété en éventail
Native, C:4,
Secure,
S5, G5
Diphasiastrum digitatum6.jpg
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 (Pursh) Holub

1814. Lycopodium tristachyum Pursh
183?. Lycopodium complanatum
ssp. chamaecyparissus
1840. Lycopodium clavatum var. tristachyum
1944. Diphasium tristachyum (Pursh) Rothm.
1961. Diphasium chamaecyparissus
(A. Braun ex Mutel) Á. Löve & D. Löve
1975. Diphasiastrum tristachyum (Pursh) Holub
Blue ground-cedar,
Deep-root clubmoss
Native, C:4,
Secure,
S5, G5
Diphasiastrum tristachyum 240813d 2x3.jpg
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 (L.) Holub

1753. Lycopodium complanatum L.
    Diphasium complanatum (L.) Rothm.
    Lycopodium anceps Wallr.
    Diphasium anceps (Wallr.) Á,D.Löve
1975. Diphasiastrum complanatum (L.) Holub
Northern groundcedar,
Trailing clubmoss,
Northern running-pine,
Lycopode aplati
Native, C:8,
Endangered,
S2, G5
Diphasiastrum complanatum Острівський зак-к.jpg
Diphasiastrum complanatum nymap.svg
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(Rupr.) Holub (1975)

    Lycopodium sitchense Rupr. (1845)'
    Diphasium sitchense (Rupr.) Á,D.Löve'
    Lycopodium sabinifolium sitchense
Sitka groundcedar,
Alaskan clubmoss,
Sitka club-moss,
Lycopode de Sitka
Native, C:10,
Endangered,
S1, G5
Diphasiastrum sitchense iNat-42883913.jpg
Diphasiastrum sitchense nymap.svg
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(Willd.) Holub (1975)

Diphasiastrum sitchense ×
Diphasiastrum tristachyum

    Lycopodium × sabinifolium Willd.
    Lycopodium sabinifolium Willd.
    Lycopodium armatum Desv.
Ground-fir,
Savinleaf groundpine,
Savin-leaved groundpine,
Cypress clubmoss
Native,
Unranked,
SNA, GNA
Diphasiastrum × sabinifolium iNat-47838781.jpg
Diphasiastrum × sabinifolium nymap.svg
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(Rouy) Holub (1975)

Diphasiastrum complanatum ×
Diphasiastrum tristachyum

    Lycopodium × zeilleri
    Diphasium zeilleri (Rouy) Damboldt'
Zeiller's running-pine,
Zeiller's clubmoss
Native,
Unranked,
SNA, GNA
Diphasiastrum complanatum (3121381112) 2x3.jpg
Diphasiastrum × zeilleri nymap.svg
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(House) Holub (1975)

Diphasiastrum digitatum ×
Diphasiastrum tristachyum

    Lycopodium × habereri House
    L. complanatum var. habereri
    L. tristachyum var. habereri
Haberer's clubmoss Native,
Unranked,
SNA, GNA
Diphasiastrum digitatum (homeredwardprice) 003.jpg
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Subfamily Lycopodielloideae[edit | edit source]

Lycopodiella[edit | edit source]

Bog clubmoss. (Lycopodiella in Latin means little wolf's-foot.)

Lycopodiales — Lycopodiaceae — Lycopodielloideae — Lycopodiella
LycopodiellaHolub (1964) Bog clubmoss N.Y. Status Images Distribution NY NPT
 (L.) Holub

1753. Lycopodium inundatum L.
1805. Plananthus inundatus (L.) P.Beauv.
1852. Lepidotis inundata (L.) Opiz
1912. Lepidotis inundata (L.) Börner
1964. Lycopodiella inundata (L.) Holub
Northern bog clubmoss,
Marsh clubmoss,
Inundated clubmoss
Lycopodielle inondé
Native, C:8,
Secure

OBL

Perennial,
Subshrub
Lycopodiella inundata 003.jpg
Lycopodiella inundata nymap.svg
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 (Chapm.) Cranfill

1843. Lycopodium inundatum var. bigelovii
1878. Lycopodium inundatum var. appressum
1900. Lycopodium appressum
F.E.Lloyd & Underw.
1981. Lycopodiella appressa
(Chapm.) Cranfill
1985. Lycopodiella bigelowii (Tuck.) Holub
Southern bog clubmoss,
Appressed bog-clubmoss,
Chapman's club-moss
Native, C:7,
Likely secure

FACW

Perennial,
Subshrub
BB-0104 Lycopodium adpressum.png
Lycopodiella appressa nymap.svg
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(L.) Cranfill

1753. Lycopodium alopecuroides L.
1944. Lepidotis alopecuroides (L.) Rothm.
1981. Lycopodiella alopecuroides (L.) Cranfill
Foxtail bog-clubmoss,
Foxtail clubmoss
Native, C:7,
Vulnerable,
S2?, G2

FACW

Perennial,
Subshrub
Lycopodiella alopecuroides.jpg
Lycopodiella alopecuroides nymap.svg
Kings, Nassau, Richmond, Suffolk
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(Eiger) Cranfill (1981)

L. alopecuroides ×
L. appressa

Copeland's bog clubmoss,
Copeland's clubmoss
Native,
Unranked
Ny hybrid.svg
Nymap.svg
Suffolk
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A.Haines (2003)

L. appressa ×
L. inundata

Gilman's bog clubmoss,
Gilman's clubmoss
Native,
Unranked
Ny hybrid.svg
Nymap.svg
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Lycopodiella (excluded taxa) Bog clubmoss N.Y. Status Images Distribution NY NPT
( R.J.Eaton) A.Haines (2002)

L. alopecuroides ×
L. inundata

Lycopodium inundatum var. robustum
Bog clubmoss Native,
N.Y. excluded
Ny hybrid.svg
Excluded nymap.svg
NYFA-U

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Pseudolycopodiella[edit | edit source]
Lycopodiales — Lycopodiaceae — Lycopodielloideae — Pseudolycopodiella
Pseudolycopodiella False bog-clubmoss N.Y. Status Images Distribution NY NPT
(L.) Holub

1753. Lycopodium carolinianum L.
1968. Lycopodiella caroliniana (L.) Pic.Serm.
1983. Pseudolycopodiella caroliniana Holub
1983. Pseudolycopodiella meridionalis Holub
Carolina clubmoss,
Slender clubmoss,
Slender bog club-moss
Native, C:9,
Endangered,
NYNHP: 1[1]
Lycopodiella caroliniana (L.) Pic.Serm. (7858727400).jpg
Pseudolycopodiella caroliniana nymap.svg
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Order Selaginellales[edit | edit source]

Family Selaginellaceae[edit | edit source]

Selaginella[edit | edit source]

Three spikemoss (Selaginella) species have been found growing wild in New York.
Selaginellales — Selaginellaceae — Selaginella
Selaginella Spikemoss N.Y. Status Images Distribution NY NPT
 (L.) Spring

1753. Lycopodium rupestre L.
1838. Selaginella rupestris (L.) Spring
Rock spikemoss,
Dwarf spikemoss,
Northern selaginella
Sélaginelle des rochers,
Sélaginelle rupestre
Native, C:9,
Likely secure

UPL

Perennial,
Herb-forb
Selaginella rupestris iN-34325628.jpg
Selaginella rupestris nymap.svg
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 (L.) Spring

1753. Lycopodium apodum L.
1840. Selaginella apus Spring
1840. Selaginella apoda (L.) Spring
Meadow spikemoss,
Creeping spikemoss
Sélaginelle apode
Native, C:6,
Unranked,
Under review[1]

FACW
Selaginella apoda iN-11291436.jpg
Selaginella apoda nymap.svg
NYFA-2?
NRCS-N0
Go Botany
iNaturalist
ITIS
FNA

Images, wsp
 W.R.Buck

1977. Selaginella eclipes W.R.Buck
1996. S. apoda ssp. eclipes Skoda
Hidden spikemoss,
Buck's meadow spikemoss,
Creeping spikemoss
Native, C:8,
Endangered

FACW
Selaginella eclipes iNat-19576466.jpg
Selaginella eclipes nymap.svg
NYFA-1
NRCS-NN
Go Botany
ITIS
FNA
Tropicos

Images, wsp
Selaginella (excluded taxa) Spikemoss N.Y. Status Images Distribution NY NPT
(L.) P. Beauv. ex Mart. & Schrank

1753. Lycopodium selaginoides L.
1805. S. spinosa P.Beauv. illeg.
1841. S. selaginoides (L.)
P.Beauv. ex Mart. & Schrank
Club spikemoss
Northern spikemoss
Northern spike-moss
Prickly mountain-moss
Lesser-club-moss

N. America native,
N.Y. excluded

FACW

Perennial,
Herb-forb
Selaginella selaginoides02.jpg
Excluded nymap.svg
NYFA-XCLD
USDA-NN
Go Botany
ARS-GRIN

Images, wsp

Order Isoetales[edit | edit source]

Family Isoetaceae[edit | edit source]

Isoetes[edit | edit source]

Isoetales — Isoetaceae — Isoetes
Isoetes Quillwort N.Y. Status Images Distribution NY NPT
 A.Braun

1846. Isoetes engelmannii A.Braun
1905. Isoetes valida Clute
1997. Isoetes appalachiana
   D.F.Brunt. & D.M.Britton
Engelmann's quillwort,
Appalachian quillwort
Isoète d'Engelmann
Native, C:6,
Secure
Isoetes engelmannii NRCS-3x4.jpg
Isoetes engelmannii nymap.svg
NYFA-5
USDA-NN
Go Botany
VASCAN
ITIS
FNA
Tropicos
NatureServe
BONAP
IPN

Images, wsp
 Durieu
ssp. muricata A.Löve & D.Löve[1]

1789. Isoetes setacea Lam. p.p.
1827. Isoetes tenella Léman ex Desv.
1861. Isoetes echinospora Durieu
1864. Isoetes braunii Durieu
1864. Isoetes muricata Durieu
1867. I. echinospora var. braunii
1961. I. echinospora ssp. muricata
Spiny-spore quillwort,
Spring quillwort,
Braun's quillwort,
Bristlelike quillwort
Isoète à spores
   épineuses,
Isoète à spores
   spinuleuses
Native, C:7,
Likely secure
Isoetes echinospora iNat-25264828q.jpg
Isoetes echinospora nymap.svg
NYFA-4
USDA-?
Go Botany
VASCAN
ARS-GRIN
ITIS
FNA
Tropicos

Images, wsp
A.Braun ex Engelm.

1867. I. tuckermanii A.Braun ex Engelm.
1900. I. tuckermanii var. borealis
1981. I. acadiensis Kott
1991. I. tuckermanii ssp. acadiensis
Tuckerman's quillwort
Isoète de Tuckerman
Native, C:10,
Likely secure
BB-0119 Isoetes tuckermani.png
Isoetes tuckermanii nymap.svg
NYFA-4
USDA-NN
Go Botany
ITIS
FNA

Images, wsp
 R.Dodge

Isoetes echinospora ×
Isoetes engelmannii

1896. Isoetes eatonii R.Dodge
1900. I. gravesii A.A.Eaton
    I. eatonii var. gravesii A.A.Eaton
Eaton's quillwort Native,
Vulnerable
Isoetes × eatonii BB-1913-1.png
Isoetes × eatonii BB-1913-2.png
Isoetes × eatonii nymap.svg
NYFA-3
USDA-NN
ITIS

Images, wsp
 L.

1753. Isoetes lacustris L.
1864. Isoetes macrospora Durieu
1900. Isoetes hieroglyphica A.A.Eaton
1922. I. macrospora fo. hieroglyphica
Lake quillwort,
Carved quillwort,
Warty Quillwort
Isoète lacustre,
Isoète hiéroglyphique
Native, C:10,
Rare
Isoetes lacustris rivnenskyi.jpg
Isoetes lacustris nymap.svg
NYFA-3
USDA-NN
Go Botany
ITIS
FNA

Images, wsp
D.F.Brunt.

 auct. I. riparia var. canadensis (i)
1903. I. canadensis var. robbinsii
2015. I. septentrionalis D.F. Brunt.
Northern shore quillwort,
Northern quillwort
isoète du Nord
Native, C:10,
Endangered

OBL

Perennial,
Herb-forb
BB-0123 Isoetes riparia.png
Isoetes riparia var canadensis nymap.svg
NYFA-1
USDA-N0
Go Botany
VASCAN
ITIS
FNA

Images, wsp
I. engelmannii × septentrionalis

Isoetes engelmannii ×
Isoetes septentrionalis

 auct. Isoetes × brittonii
 auct. Isoetes engelmannii × riparia
Hybrid of
 Engelmann's quillwort &
 northern shore quillwort
Native,
No recent reports
BB-0127 Isoetes engelmanni.png
Isoetes × brittonii nymap.svg
NYFA-Z?
USDA-N0
Go Botany
ARS-GRIN
ITIS

Images, wsp
  1. The New York Flora Atlas and New England Wild Flower Society list the spiny-spore quillwort as Isoëtes echinospora ssp. muricata because the leaves of the North American plants of bear stomata, while those of the European plants do not. The other sources used here treat ssp. muricata as a synonym.

Isoetes (excluded)[edit | edit source]

Isoetales — Isoetaceae — Isoetes
Isoetes (excluded taxa) Quillwort N.Y. Status Images Distribution NY NPT
Engelm. ex A.Braun[1]

1846. I. riparia Engelm. ex A.Braun
18??. I. saccharata Engelm. in A.Gray
1891. Calamaria saccharata
(Engelm.) Kuntze
1901. I. canadensis (Engelm.) A.A.Eaton
1949. I. riparia fo. saccharata
    
Shore quillwort,
Canada shore quillwort
Native,
N.Y. excluded
BB-0123 Isoetes riparia.png
Excluded nymap.svg
NYFA-XCLD
USDA-NN
Go Botany
ITIS
Tropicos
BONAP

Images, wsp
 A.A.Eaton

Isoetes lacustris ×
Isoetes tuckermanii

1900. Isoetes × heterospora A.A.Eaton
    Isoetes tuckermanii var. harveyi
Harvey's quillwort Native,
N.Y. excluded
Ny hybrid.svg
Excluded nymap.svg
NYFA-XCLD
USDA-NN
Go Botany
ITIS
FNA

Images, wsp
D.F. Brunt. & D.M. Britton

Isoetes septentrionalis ×
Isoetes tuckermanii

    
    
    
New England quillwort Native,
N.Y. excluded
Ny hybrid.svg
Excluded nymap.svg
NYFA-XCLD
USDA-N0
Go Botany
ITIS
FNA

Images, wsp
  1. Isoetes riparia was apparently misapplied to reports of Isoetes septentrionalis in New York. (NYFA (2016)