Ontario Marsh Plants

Common Marsh Plants
Emergent
water plantain	Alisma plantago-aquatica
swamp milkweed	Asclepias incarnata
sedges	Carex spp.
turtlehead	Chelone glabra
spike rushes	Eleocharis spp.
water horsetail	Equisetum fluviatile
wild blue flag	Iris versicolor
rushes	Juncus spp.
pickerelweed	Pontederia cordata
arrowhead	Sagittaria latifolia
hard-stemmed bulrush	Scirpus acutus
black bulrush	Scirpus atrovirens
softstem bulrush	Scirpus validus
green fruited bur-reed	Sparganium chlorocarpum
giant bur-reed	Sparganium eurycarpum
cattails	Typha spp.
American brooklime	Veronica americana
Submergent:
coontail	Ceratophyllum demersum
waterweed	Elodea canadensis
watermilfoil	Myriophyllum exalbescens
sago pondweed	Potamogeton pectinatus
pondweed	Potamogeton richardsonii
bladderworts	Utricularia vulgaris
tape grass	Vallisneria americana
Floating-leaved
yellow water lily	Nuphar variegata
white water lily	Nymphaea odorata
water smartweed	Polygonum amphibium
variable-leaved pondweed	Pontamogeton gramineus
floating pondweed	Pontamogeton natans
Free-floating
common duck weed	Lemna minor
star duckweed	Lemna trisulca
greater duckweed	Spirodela polyrhiza
Common Exotic Marsh Plants
Emergent
flowering-rush	Butomus umbellatus
great manna grass	Glyceria maxima
yellow flag	Iris pseudacorus
moneywort	Lysimachia nummularia
purple loosestrife	Lythrum salicaria
*reed canary grass	Phalaris arundinacea
marsh cress	Rorippa amphibia
*common reed grass	Phragmites australis
Submergent
Eurasian watermilfoil	Myriophyllum spicatum
curly pondweed	Potamogeton crispus
Floating-leaved
European frog-bit	Hydrocharis morsus-ranae
floating heart	Nymphoides peltatum
* Species with both exotic and native genotypes.

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