yes, you heard me right.
potato... FRUIT!
Quote from his website:
"These are genuine fruit, but not that common. Usually, potato flowers just drop off. When fruit do form, they’re more likely found on certain varieties, like Yukon Gold."
from wikipedia:
"After potato plants flower, some varieties will produce small green fruits that resemble green cherrt tomatoes, each containing up to 300 true seeds. Potato fruit contains large amounts of the toxic alkaloid solanine, and is therefore unsuitable for consumption. "
so there is a potato fruit BUT unfortunately its toxic. you have been educated and be warned =D
+dbc+
source:
http://tinyfarmblog.com/potato-fruit/
http://en.wikipedia.org/wiki/Potato
