Photo of Chinese yam showing leaves and bulbils

    Chinese Yam

    Dioscorea oppositifolia (sometimes called D. batatas)
    invasive icon

    Invasive

    Photo of climbing false buckwheat vines, leaves, and flowers.

    Climbing False Buckwheat (Crested Buckwheat)

    Fallopia scandens (formerly Polygonum scandens)
    Photo of coontail aquatic plant with penny for scale

    Coontail (Hornwort)

    Ceratophyllum demersum
    Photo of various duckweeds and watermeal on water surface

    Duckweeds (Watermeal)

    Lemna spp.; Spirodella spp.; Wolffia spp.
    Picture of a patch of filamentous green algae floating in a stream.

    Filamentous Green Algae (Pond Scum)

    Cladophora, Pithophora, and Spirogyra spp., and others
    Photo of a giant ragweed plant.

    Giant Ragweed

    Ambrosia trifida
    Photo of several big bluestem seed heads against a blue sky.

    Grasses

    All true grasses (species in the grass family).
    Photo of Japanese knotweed

    Japanese Knotweed

    Fallopia japonica
    invasive icon

    Invasive

    Photo of Johnson grass flower clusters

    Johnson Grass

    Sorghum halepense
    invasive icon

    Invasive

    Photo of whorled milkweed flowers.

    Milkweeds

    Subfamily Asclepiadoideae
    Photo of pale Indian plantain flower clusters.

    Pale Indian Plantain

    Arnoglossum atriplicifolium (also Cacalia atriplicifolia)
    Photo of pokeweed plant with dangling stalks of ripe and unripe berries.

    Pokeweed

    Phytolacca americana
    Poisonous Icon

    Poisonous

    Photo of American pondweed leaves floating on water surface

    Pondweeds

    Potamogeton spp.
    Photo of several reed canary grass plants with flowering heads

    Reed Canary Grass

    Phalaris arundinacea
    invasive icon

    Invasive

    Photo of path rush, closeup showing drying fruits.

    Rushes

    Juncus spp. and Luzula spp.
    Photo of eastern woodland sedge plant growing among leaf litter.

    Sedges

    Carex, Schoenoplectus, Scirpus, and other genera
    Photo of a spatterdock flower held against a leaf

    Spatterdock (Yellow Pond Lily)

    Nuphar advena (formerly N. lutea)
    fork and knife icon

    Edible

    Photo of tall fescue plants

    Tall Fescue

    Festuca arundinacea
    invasive icon

    Invasive

    Photo of white avens flower and upper stem leaves.
    Photo of white snakeroot leaves and flowers

    White Snakeroot

    Ageratina altissima (formerly Eupatorium rugosum)
    Poisonous Icon

    Poisonous

    Photo of wood nettle leaves at top of plant.

    Wood Nettle (Stinging Nettle)

    Laportea canadensis
    fork and knife icon

    Edible