Take the nightshade vegetables or Solanaceae, a plant family that includes eggplant, peppers, potatoes and tomatoes. (The term 'nightshade' may have been coined because some of these plants prefer to grow in shady areas, and some flower at night.)
Luckily, most of the edible nightshades–eggplant, tomatoes, goji and peppers– are fruits (fruits by definition contain seeds). Tobacco is a nightshade vegetable, but it is typically smoked, not eaten, so the only nightshade vegetable humans consume is the beloved potato.
AND AVOCADOS ARE TECHNICALLY FRUIT, SO THAT'S APPARENTLY WHERE THEY STAND
