Poisonous

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Photo of buffalo bur flower and leaves.

Buffalo Bur (Kansas Thistle)

Solanum rostratum

Poisonous

Photo of common jimsonweed flower

Common Jimsonweed

Datura stramonium

Poisonous

Photo of common water hemlock or spotted cowbane flowers

Common Water Hemlock

Cicuta maculata

Poisonous

Photo of flowering spurge flowers

Flowering Spurge

Euphorbia corollata

Poisonous

Photo of horse nettle flowers and leaves

Horse Nettle

Solanum carolinense

Poisonous

Photo of leafy spurge seed heads

Leafy Spurge

Euphorbia esula

Poisonous

Invasive

Photo of pokeweed plant with dangling stalks of ripe and unripe berries.

Pokeweed

Phytolacca americana

Poisonous

Photo of sesbania flowers and foliage

Sesbania (Coffeeweed)

Sesbania herbacea (formerly S. exaltata)

Poisonous

Invasive

Photo of soapwort plants and flowers

Soapwort (Bouncing Bet)

Saponaria officinalis

Poisonous

Photo of white snakeroot leaves and flowers

White Snakeroot

Ageratina altissima (formerly Eupatorium rugosum)

Poisonous

Photo of wild four-o'clock flower

Wild Four-O’Clock

Mirabilis nyctaginea

Poisonous