Many nightshades are safe and delicious, and go well in sandwiches and sauces. A few are deadly, dished up mainly by criminals, but most occupy a gray area between these two extremes. Worldwide, there are around 2,700 shades of nightshade, a family known to Latin geeks as Solanaceae. The family comprises tasty crops like tomatoes, potatoes, eggplant, peppers, and tomatillos. It is also composed in part by jimsonweed and other shady characters which have wrought mayhem and death, both accidental and intentional, throughout history.
Nightshades are present on every continent except Antarctica, though Australia and South America have the greatest diversity, and overall numbers, of species. Tobacco is one of the most economically important nightshades, while other family members, for example petunias and Chinese lanterns, spice up our yards. The majority of nightshades are wild species, some of which have been used as sources of medicine for millennia. » Continue Reading.