also: つのなす
noun
nipplefruit; apple of Sodom; titty fruit; cow's udder
A tropical plant (Solanum mammosum) known for its unusual, nipple-shaped fruit. The Japanese name literally means 'horned eggplant'. The fruit is inedible and often used ornamentally.
ツノナスは観賞用として栽培されることが多い。
Nipplefruit is often grown as an ornamental plant.
ツノナスの実は独特な形をしている。
The fruit of the nipplefruit has a distinctive shape.
From 角 (つの, 'horn') + 茄子 (なす, 'eggplant'), referring to the horn-like protrusions on the fruit.