jimsonweed
Datura stramonium                                      

Identifying Characteristics:

Seed:    flat, kidney-shaped seed; very pitted surface creating a dull appearance; dark brown to black in color

Seedling:  simple, ovate leaves with large triangular teeth; glabrous; long petioles

Mature Plant: erect, branching growth habit; large trumpet-shaped, white or purple flowers in leaf or branch axils; oval fruit covered with spines

Method of Propagation: seed

Life Cycle: warm-season annual

References: Abaye, A. Ozzie. "Identification & Adaption: Common Grasses, Legumes & Non-leguminous Forbs of the Eastern United States."
Bryson, Charles T. & Michael S DeFelice. "Weeds of the Midwestern United States & Central Canada."