Wild lettuce (lactuca virosa) has recently shown promise in research as both a nootropic (a substance that can help improve cognitive function) and painkiller.

Wild lettuce extract, also known as lettuce opium became popularized Friday after Dr. Oz recommended the extract to help people sleep. ... sap and seeds of Lactuca virosa, a wild leafy plant.

The Latin name for my weed is likely Lactuca serriola, but could be L. virosa, L. canadensis or L. scariola. The genus name, Lactuca comes from Latin for the white latex or milky sap the plant exudes.

SELF-FERTILIZATION in Lactuca sativa L. is commonly regarded as being complete, although the inflorescences are visited by insects and the possibility of cross-pollination does occur1,2. Some ...