These develop into fruits containing the edible seeds. Rapeseed is grown for the production of animal feed, edible vegetable oils, and biodiesel. Tragopogon porrifolius is a plant cultivated for its ornamental flower and edible root. This avoids direct competition for commodities like corn and edible vegetable oil. A berry is a small, pulpy, and often edible fruit. Noni fruit comes from "Morinda citrifolia", a small tree with edible fruit. Others are edible and used as vegetables. Others rely on animals, for example with edible fruits. Nearly one thousand species of plants with edible leaves are known. These gorillas favor areas where edible plants are more copious. They are among the most popular of wild edible mushrooms. These fruit typically have a higher price, due to having more edible flesh. Researchers have also explored the possibility of using ornamental cultivars as edible lilies. Dik-diks seek habitats with a plentiful supply of edible plants such as shrubs. Oilseed grains are grown primarily for the extraction of their edible oil.