A kind of wild fruit in Qingdao, Shandong Province, with purple-black berries, small size and unique taste, is called tobacco oil (four tones) and homophonic smoke hole. What is its scientific name?

It should be eggplant fruit, right? Panicum miliaceum, 30- 100 cm tall, with erect stems and many branches. The fruit is spherical, shriveled, 2 ~ 5 mm in diameter, dark brown, orange-red or yellow-green; There is a round brown style mark at the top and sometimes a fine fruit stalk at the bottom. Dried fruits are easy to break, and after breaking, you can see that they contain most yellow and white round flat seeds. You can eat the fruit when it is ripe.