Needlerush (Juncus roemerianus) 
Nitella (Nitella sp. ): 
Oak (Quercus sp.) 
overcup (Quercus lyrata) 
pin (Quercus palustris) 
white (Quercus alba) 
willow (Quercus phellos) 
Panicum (Panicum sp.) 
fall (Panicum dichotomiflorum) 
warty (Panicum verrucosum) 
Partridge-pea, little (Cassia nictitans) 
Paspalum (Paspalum sp.) 
Pennywort, water (Hydrocotyle ranunculoides) 
Phragmites (Phragmites communis) 
Pickerelweed (Pontederia cordata) 
Pilewort (Erechtites hieracifolia) 
Pine, loblolly (Pinus taeda) 
Poison-ivy (Rhus radicans) 
Pondweed (Potamogeton sp.) 
Berchtold (Potamogeton berchtoldi) 
claspingleaf (Potamogeton perfoliatus) 
grassleaf (Potamogeton pusillus) 
horned (Zannichellia palustris) 
largeleaf (Potamogeton amplifolius) 
leafy (Potamogeton foliosus) 
longleaf (Potamogeton nodosus) 
ribbonleaf (Potamogeton epihydrus) 
sago (Potamogeton pectinatus) 
variableleaf (Potamogeton gramineus) 
Possunrhaw (Ilex decidua) 
Quillwort (Isoetes engelmanni) 
Riverweed (Podostemum ceratophylfum) 
Rose, swamp (Rosa palustris) 
Rosegentian (Sabatia stellaris) 
Rosemallow (Hibiscus moscheutos) 
Rush (Juncus sp.) 
St. John’s-wort 
little (Hypericum mutilum) 
marsh (Hypericum virginicum) 
Saltgrass (Distichlis spicata) 
Sealavender (Limonium carolinianum) 
Sea-lettuce (Ulva lactuca) 
Sedge (Carex sp.) 
tussock (Carex stricta) 
Seedbox (Ludwigia alternifolia) 
Smartweed (Polygonum sp. ): 
dotted (Polygonum punctatum) 
largeseed (Polygonum pensylvanicum) 
marsh (Polygonum coccineum) 
nodding (Polygonum lapathifolium) 
southern (Polygonum densiflorum) 
swamp (Polygonum hydropiperoides) 
Softrush (Juncus effusus) 
Sorghum (Sorghum vulgare) 
Spatterdock (Nuphar advena) 
Spicebush (Lindera benzoin) 
Spikerush 
blunt (Eleocharis obtusa) 
common (Eleocharis palustris) 
dwarf (Eleocharis parvula) 
slender (Eleocharis acicularis) 
squarestem (Eleocharis quadrangulata) 
Spirogyra (Spirogyra sp.) 
Swamp-candles (Lysimachia terrestris) 
Sweetbay (Magnolia virginiana) 
Sweetflag (Acorus calamus) 
Sweetgum (Liquidambar styraciflua) 
Switchgrass (Panicum virgatum) 
Tearthumb 
arrowleaf (Polygonum sagittatum) 
halberdleaf (Polygonum arifolium) 
Three-square (Scirpus sp.) 
common (Scirpus americanus) 
Olney (Scirpus olneyi) 
Tulip-poplar (Liriodendron tulipifera) 
Twigrush (Cladium mariscoides) 
Waterchestnut (Trapa natans) 
Waterhemp, tidemarsh (Acnida cannabina) 
Waterlily, white (Nymphaea odorata) 
Watermil foil 
Eurasian (Myriophyllum spicatum) 
pinnate (Myriophyllum pinnatum) 
slender (Myriophylfum tenellum) 
Waterp arsnip (Sium suave) 
Waterpepper (Polygonum hydropiper) 
Waterplantain (Alisma subcordatum) 
Waterpurslane (Ludwigia palustris) 
Watershield (Brasenia schreberi) 
Waterstargrass (Heteranthera dubia) 
Water-starwort (Callitriche heterophyl{a) 
Waterweed 
common (Elodea canadensis) 
Nuttall (Elodea nuttalilii) 
Waxmyrtle (Myrica cerifera) 
Wheat (Triticum aestivum) 
‘Widgeongrass (Ruppia maritima) 
Wildcelery (Vallisneria americana) 
Wildrice (Zizania aquatica) 
Winterberry (Ilex verticillata) 
Woodbine (Parthenocissus quinquefolia) 
Woodreed (Cinna arundinacea) 
Woolgrass (Scirpus cyperinus) 
Yellow-eyed-grass (Xyris sp.) 
