Hydrocharitaceae - Frog's-bit Family
(113)
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HElodea
E.
canadensis Michx. - water weed
HVallisneria
V.
americana Michx. - water celery
Scheuchzeriaceae (114)
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HScheuchzeria
S.
palustris L. var.
americana Fern.
Juncaginaceae - Arrow-grass Family
(115)
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HTriglochin
- arrow-grasses
T.
maritima L. - arrow-grass
Potamogetonaceae - Pondweed Family (116)
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HPotamogeton
- pondweeds
P.
amplifolius Tuckerm.
P.
alpinus Balbis var. tenuifolius
(Ruf.) Ogden
Balbis var. subellipticus (Fern)
Ogden
P.
natans L.
P.
oakesianus J.W. Robbins - whitestem pondweed
P.
epihydrus Raf. var.
nuttallii (C. & S.)
Fern.
P.
spirillus Tuckerm.
P.
gramineus L.
P.
praelongus Wulfen
P.
perfoliatus L. var.
bupleuroides (Fern.) Farw.
P.
zosteriformis Fern.
P.
friesii Rupr.
P.
pectinatus L.
P.
obtusifolius Mert. & Koch
P.
pusillus L. (incl.
P. berchtoldi Fieber)
Ruppiaceae - Ditchgrass Family (117)
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HRuppia
- widgeon grasses
R.
maritima L. var. obliqua (Schur.) Achers. &
Graebn.
Najadaceae - Water-nymph Family (118)
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ANajas
- naiads
N.
flexilis (Willd.) Rostk. & Schmidt.
Zannichelliaceae - Horned Pondweed Family
(119)
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HZannichellia
- horned pondweeds
Z.
palustris L. var.
major (Boenn) Koch
Zosteraceae - Eelgrass Family (120)
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HZostera
- eel-grasses
Z.
marina L. var.
stenophylla Aschers. & Graebn.
Acoraceae - Sweetflag Family (121)
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HAcorus
A.
americanus Raf. - sweet flag
Araceae - Arum Family (122)
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HArisaema
A.
triphyllum (L.) Schott - Jack-in-the-pulpit
HCalla
C.
palustris L. - wild calla, water arum
HSymplocarpus
S.
foetidus (L.) Salisb. - skunk cabbage
Lemnaceae - Duckweed Family (123)
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HSpirodela
S.
polyrhiza (L.) Schleid.
HLemna
L.
minor L. - small duckweed
L.
trisulca L. - star duckweed
Xyridaceae - Yellow-eyed Grass Family
(124)
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HXyris
- yellow-eyed grasses
X.
montana Ries. - yellow-eyed grass
Eriocaulaceae - Pipewort Family (125)
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HEriocaulon
- pipeworts
E.
aquaticum (Hill) Druce - pipewort
Juncaceae - Rush Family (126)
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Juncus
- bog-rush
HJ. effusus L.
- soft rush
HJ.
filiformis L.
HJ.
arcticus Willd. var. balticus (Willd.) Trautvetter
AJ.
bufoniusL. - toad-rush
HJ.
marginatusRostk.
HJ.
gerardii Loisel. - black grass
HJ.
secundus P. Beauv
HJ.
tenuis Willd.
HJ.
greenei Oakes & Tuckerman
HJ.
pelocarpus E. Meyer
HJ.
canadensisJ. Gray
HJ.
brevicaudatus (Engelm.) Fern.
HJ.
militaris Bigelow
HJ.
articulatus L.
HLuzula
- wood rush
L.
acuminata Raf. - spiked wood-rush
L.
multiflora (Retz.) Lejeune - common woodrush