Kew's Herbarium contains a wreath of folded olive leaves which was found in the sarcophagus of King Tutankhamun and is over 3,300 years old.
Sunflower is a beautiful and nutritious plant widely cultivated for its edible seeds and oil.
Sugar is extracted from the sweet, juicy stems of sugar cane, and is used worldwide as a sweetener, preservative and in the cosmetics industry.
The mopane tree is reputed to provide the best fuelwood in Africa.
A star of many Western films, the iconic saguaro cactus is a spectacular feature of the Sonoran Desert in south western North America.
A highly variable, extremely widespread plant with numerous medicinal uses, hopbush is known by over 50 different common names.
River red gum is a beautiful tree found along river banks and in valleys in Australia.
Copper beech trees can be propagated by grafting to maintain the colour of the leaves.
Having virtually disappeared from its natural habitat for the second time, St Helena boxwood is kept safe in cultivation in Kew's glasshouses.
Oxytenanthera abyssinica (Bindura bamboo) is a drought-resistant bamboo from tropical Africa. Kew's Millennium Seed Bank holds several thousand seeds from this species.