Definition: Rhatany root, known as Peruvian rhatany, consists of the dried, usually fragmented, underground organs of Krameria triandra Ruiz and Pavon.
本品也称作秘鲁娜檀根,为豆科植物拉坦尼Krameria triandra Ruiz and Pavon的通常破碎的地下部分。
This site offers images from the tropics e.g. pictures of soil profiles: aridisol in Peru, vertisol in Kenya, alfisol in Nigeria, mollisol in Thailand, spodosol in Brazil, laterite outcrops etc.