water parsnip
Sium suave
greater water parsnip
Sium latifolium
swamp lily
lizard's-tail
Saururus cernuus
water dragon
spring cress
Cardamine bulbosa
rivulus
daisy fleabane
nodding thistle
Carduus nutans
musk thistle
Erigeron annuus
Northern snow bedstraw
Northern bedstraw
Galium boreale
prickle-weed
Desmanthus ilinoensis
prairie mimosa
brookweed
alligator grass
edelweiss
alligator weed
Alternanthera philoxeroides
Artemisia gnaphalodes
Artemisia ludoviciana
prairie sage
western mugwort
white sage
cudweed
water arum
Pachysandra procumbens
Calla palustris
Verbascum lychnitis
Allegheny mountain spurge
white mullein
wild calla
Mentha longifolia
Allegheny spurge
horsemint
Aster dumosus
bushy aster
Lysimachia
genus Lysimachia
horse radish
polecat weed
skunk cabbage