Tree An area of woodland composed primarily of trees established by planting or artificial seeding is known as a plantation. Trees are the source of many of the world's best known fleshy fruits. Apples, pears, plums, cherries and citrus are all grown commercially in temperate climates and a wide range of edible fruits are found in the tropics. Other commercially important fruit include dates, figs and olives. Palm oil is obtained from the fruits of the oil palm ("Elaeis guineensis"). The fruits of the cocoa tree ("Theobroma cacao") are used to make cocoa and chocolate and the berries of coffee trees,
Dresden Botanical Garden unusual "Quercus phellos" as well as "Corydalis nobilis", "Hamamelis", rhododendrons, magnolias, and so forth; a systematic section; an alpine garden collecting a variety of European high mountain plants, including gentian ("Gentiana"), species of saxifrage ("Saxifraga"), "Dianthus caryophyllus", numerous cruciferous plants and primroses; and a garden that contains poisonous, curative, and medicinal plants. The garden also contains five greenhouses of about 1,000 m² total area, containing some 3,000 species, as well as an aquatic greenhouse for "Victoria cruziana" and plants from tropical America including "Ananas comosus", "Tillandsia usneoides", "Theobroma cacao", epiphytic bromeliads, etc. The Great Tropical House (Paläotropis) contains tropical flora