Many people considered them poisonous, mistaking them for nightshade, a truly poisonous plant in the same family.
From the tennessean.com
Some of the source substances are gentle, like daisies, others poisonous, like arsenic, poison ivy or deadly nightshade.
From the dailyherald.com
Once believed poisonous because they are related to the deadly nightshade, tomatoes are now a staple of nearly every cuisine in the world.
From the sfgate.com
These members of the nightshade family, which were once thought to be poisonous, produce their fruit in a vast array of color, shape and size.
From the orlandosentinel.com
Because it was known that potatoes were in the nightshade family, it became a common misconception that potatoes were poisonous.
From the tennessean.com
The alkaloids of these plants are very similar to those of mandrake, deadly nightshade, and henbane, which are also highly poisonous plants used cautiously for effective pain relief in antiquity.
From the en.wikipedia.org
As a member of the nightshade family, aubergine is related to tomatoes and potatoes, and like them its leaves are poisonous.
From the guardian.co.uk
Tomatoes are part of the nightshade family, just like peppers and eggplants, which have led some in the past to believe the fruit is poisonous.