The Cassia Diphylla is an extremely common, large plant and can be found in caves and other dark places. It blooms once a year, for 1 week. It has tiny, fan shaped leaves, which are usually yellow-green. It also grows decent sized flowers, which can be light yellow, grey, dark grey, light pink and light brown. These plants grow separated by a fair distance from each other, but it's no trouble to control and maintain their growth. They can be used as a cooking ingredient, similar to herbs. As a defense mechanism the Cassia Diphylla grows large thorns. They rely on self pollination to reproduce. Once pollinated, they grow fairly large, delicious fruits.