Below are plants introduced through the marketplace.
Not all are causing harm, but many are invasive in the U.S.
Algae
- Sphacelaria fluviatilis
- Brown algae
- Sphacelaria lacustris
- Brown algae
Vascular Plants
- Alternanthera philoxeroides
- Alligator weed
- Azolla pinnata
- Feathered mosquito fern
- Bacopa egensis
- Brazilian waterhyssop
- Butomus umbellatus
- Flowering rush
- Cabomba caroliniana
- Carolina fanwort
- Colocasia esculenta
- Coco yam
- Conium maculatum
- Poison hemlock
- Cryptocoryne beckettii
- Water trumpet
- Egeria densa
- Brazilian waterweed
- Eichhornia azurea
- Anchored water hyacinth, floating water hyacinth
- Eichhornia crassipes
- Water hyacinth
- Elodea canadensis
- Canadian waterweed
- Epilobium hirsutum
- Great hairy willow herb
- Glossostigma cleistanthum
- Mud mat
- Hydrilla verticillata
- Hydrilla
- Hydrocharis morsus-ranae
- European frogbit
- Hygrophila polysperma
- Indian hygrophila
- Impatiens glandulifera
- Ornamental jewelweed
- Ipomoea aquatica
- Water spinach, swamp morning glory
- Iris pseudacorus
- Yellow iris
- Juncus inflexus
- Rush, European meadow rush
- Landoltia punctata
- Dotted duckweed
- Ludwigia grandiflora
- Large-flower primrose-willow
- Ludwigia peploides
- Creeping water primrose, floating primrose
- Lupinus polyphyllus
- Lupine
- Lysimachia nummularia
- Moneywort
- Lysimachia vulgaris
- Garden loosestrife
- Lythrum salicaria
- Purple loosestrife
- Marsilea quadrifolia
- European water clover
- Mentha spicata
- Spearmint
- Myosotis scorpioides
- True forget-me-not
- Myriophyllum aquaticum
- Parrot feather, Brazilian watermilfoil
- Myriophyllum heterophyllum
- Variable leaf watermilfoil, twoleaf watermilfoil
- Myriophyllum spicatum
- Eurasian watermilfoil
- Najas minor
- Brittle waternymph
- Nasturtium officinale
- Watercress
- Nymphaea ampla
- Dot-leaf water lily
- Nymphaea odorata
- Fragrant water lily
- Nymphoides cristata
- Crested floating heart
- Nymphoides indica
- Water snowflake
- Nymphoides peltata
- Yellow floating heart
- Phyllanthus fluitans
- Red root floater
- Pistia stratiotes
- Water lettuce
- Potamogeton crispus
- Curlyleaf pondweed
- Salvinia minima
- Water spangles
- Salvinia molesta
- Giant salvinia
- Solanum dulcamara
- Bittersweet nightshade
- Spartina alterniflora
- Smooth cordgrass
- Spartina patens
- Saltmeadow cordgrass
- Trapa natans
- Water chestnut
- Zostera japonica
- Dwarf eelgrass