The opium poppy is a bright flower, usually red or orange, that grows to a h (46) of about 75-90 centimetres. In the wild, it usually grows in huge clusters, sometimes covering an entire field. Humans have cultivated this flower for thousands of years, b (47) for its beauty and for the powerful chemicals it produces. It is not sur (48) that an ancient human eventually tasted opium, the dried juice of the poppy. Many people (49) (mistake) believe that the juice comes only from the seedpods, and only at a certain time of year. The juice does not pool up the seedpod just before the seed ripen, but it flows thr (50) the rest of the plant as well. The stem and seed capsules leak this milky juice easily if the plant is knocked down or the stem is broken. The dried juice forms a brown crust that is easy to see. Someone searching for food was probably hu (51) enough to risk tasting the dried material. He or she was probably surprised by the result. The first opium-eater has had a long sleep before being able to tell anyone else about the poppy. Its sci (52) name, papaver somniferum, means " sleep-bringing poppy ". (53) (sleep) is one of the best-known side-effects of ingesting opium. Ancient Greek art often showed Hypnos, the god of sleep, with poppies in his hands. The same images were associated with Somnus, the Roman god of sleep. This (54) (connect) of poppies with sleep carried through to one of the most popular books and movies of 20th-century America. In the 1939 movie The Wizard of Oz, a girl named Dorothy and her friends are trying to find a wizard who can help them get the things they need. An ev (55) witch tries to stop them. One of the witch’s tricks is to put Dorothy and all her friends to sleepby leading them into a beautiful, dangerous field of bright poppies.