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Weeds and Plant Identification
Jimsonweed - Datura stramonium

Jimsonweed plant

Fruit

Mature capsule

Jimsonweed leaf

Seedling
 
 

 
Jimsonweed Datura stramonium L.
Solanaceae (Nightshade family)
 
Life cycle
Erect, branching summer annual.
 
Leaves
Cotyledons are long and narrow with a prominent midvein. Leaves are alternate, oval to egg-shaped, 3 to 8 inches long, smooth with long petioles. First leaves are entire; later leaves have large, coarsely and unevenly toothed margins. Damaged leaves will emit a foul odor.
 
Stems
Erect and branching, up to 5-foot-tall stems are hollow, generally smooth and green to purple. Damaged stems emit a foul odor.
 
Flowers and fruit
Flower petals are large, white to purple in color and fused into a 2- to 5-inch-long tube. Fruit are very spiny, egg-shaped capsules with four valves. Each valve contains numerous flat, dark brown to black, round to kidney-shaped seeds.
 
Reproduction
Seeds.
 
Toxicity
All plant parts are toxic to animals.

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