Virginia crownbeard
Mexican tea
Tripleurospermum inodorum
frostweed
curled leaf pondweed
Matricaria inodorum
boar thistle
bull thistle
king devil
spear thistle
Cirsium vulgare
genus Lindera
Cirsium lanceolatum
Hieracium praealtum
Asarum europaeum
Lindera
bastard pennyroyal
Rocky Mountain dogbane
yellow hawkweed
Apocynum pumilum
Trichostema dichotomum
asarabacca
calamint
Chenopodium rubrum
field chamomile
Carolina pond fern
allspice
floating fern
red goosefoot
Conradina
genus Conradina
Azolla caroliniana
genus Cercis
corn chamomile
Cercis
mosquito fern
French spinach
Anthemis arvensis
spiked loosestrife
gromwell
Euphorbia amygdaloides
cross-leaved heath
Lithospermum officinale
Erica tetralix
iva
bell heather
Lythrum salicaria
marsh elder
purple loosestrife