Tall Lettuce: Wild Opium: Horse-weed. Lactuca canadensis.

Composite Family. June - Sept.

Found in roadsides, borders of fields, thickets, moist soil. Canada to Georgia, west to Arkansas.


Pale-yellow, numerous, small, in loose, spreading cluster terminating stem, 4 - 10 feet high.


Lower leaves deeply toothed, often 1 foot long, narrowed toward the base; upper leaves lance-shaped, toothless.

Wild Lettuce.

Wild Lettuce.