Agalinis purpurea (purple agalinis) Agalinis tenuifolia (slender false foxglove) Amphicarpaea bracteata (American hog-peanut) Aureolaria pedicularia (fern-leaved false foxglove) Bidens cernua (nodding beggarticks) Capnoides sempervirens (pink corydalis) Cardamine pensylvanica (Pennsylvania bittercress) Chamaecrista fasciculata (showy partridge pea) Chamaecrista nictitans (sensitive partridge pea) Cicuta maculata (spotted water hemlock) Drosera intermedia (spoonleaf sundew) Echinochloa walteri (Walter's barnyard grass) Eleocharis obtusa (blunt spikerush) Echinocystis lobata (wild cucumber) Erechtites hieraciifolius (American burnweed) Erigeron annuus (annual fleabane) Erigeron pulchellus (Robin's-plantain) Erigeron strigosus (daisy fleabane) Gentianopsis crinita (fringed gentian) Hexasepalum teres (rough buttonweed) Hypericum canadense (Canada St. John's wort) Hypericum gentianoides (orange-grass St. John's-wort) Impatiens capensis (orange jewelweed) Lactuca canadensis (Canada wild lettuce) Lindernia dubia (yellowseed false pimpernel) Lobelia inflata (Indian tobacco) Melampyrum lineare (cow-wheat) Nuttallanthus canadensis (blue toadflax) Oenothera biennis (evening primrose) Polygala sanguinea (purple milkwort) Polygonum articulatum (northern jointweed) Pseudognaphalium obtusifolium (rabbit tobacco) Rudbeckia hirta (black-eyed Susan) Trichostema dichotomum (forked bluecurls) Triodanis perfoliata (clasping Venus' looking-glass) Utricularia gibba (creeping bladderwort) Verbena urticifolia (white vervain)