Same family; the datura flowers are large and showy plants (and in frost-free climates can be kept year around to shrub out), the blossoms smell terrific though they don’t last long, and if they fruit, do not eat them, even though they look like eggplants (another relative, see the keywords). The fruit is also known as the “zombie cucumber” and is the source of the drug described in “Serpent and the Rainbow”.
Always polite to ping the one you are talking about! ;)