Green flowers

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Photo of Chinese yam showing leaves and bulbils

Chinese Yam

Dioscorea oppositifolia (sometimes called D. batatas)

Invasive

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

Climbing False Buckwheat (Crested Buckwheat)

Fallopia scandens (formerly Polygonum scandens)

Rope dodder stems

Dodders

Cuscuta spp.

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

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

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 white avens flower and upper stem leaves.

White Avens (Red Root)

Geum canadense

Photo of white snakeroot leaves and flowers

White Snakeroot

Ageratina altissima (formerly Eupatorium rugosum)

Poisonous

Photo of wood nettle leaves at top of plant.

Wood Nettle (Stinging Nettle)

Laportea canadensis

Edible

Photo of yellow passionflower flowers.

Yellow Passion Flower

Passiflora lutea