A survey was made of the early literature on the production of khat. A botanical and micromorphological examination of 15 samples of Catha edulis was carried out and the findings were compared with data from the earlier literature on the subject. Based on earlier and present observations, the vital organs (leaves, flowers, fruit and seeds) are described, with illustrations, to assist in the identification of khat.
对有关巧茶生产的早期文献进行了一项调查。对15个巧茶样本进行了植物学和微观形态学检查，并将结果与该主题早期文献中的数据进行了比较。根据早期和目前的观察结果，对重要器官（叶、花、果实和种子）进行了描述，并配有插图，以帮助识别巧茶。
