Just FYI, the climbing, vining plant that is commonly called wild Morning Glory is altogether a different plant from the Datura. Although the flowers have a similar shape and color, the Datura bloom is vastly larger than the vining plant bloom. The Datura does not climb, but is rather a shrubby plant but with softer, not woody, stems.
The seeds of the morning glory are said to be a hallucinogen, however, to my knowledge, they do not possess the deadly poisonous properties of the Datura.