Key features

• •Agave, used to make sisal, poison arrows, bullets, tequila and surgical thread
• •Pineapple, which influenced the construction of greenhouses
• •Hemp, used for hangman's rope, sustainable plastics, the Declaration of Independence and Levi's jeans
• •Coconut, used for coir fiber, soap, margarine, cream, sterile IV drips and coagulants
• •Eucalyptus, used in mouthwash, diuretics, vitamins, honey, underwear and fire-resistant uniforms
• •Sweet pea, which Gregor Mendel used in his research on genetics
• •White mulberry, used to feed the caterpillars that make silk
• •English oak, used for fire-resistant structures, dyes, leather tanning, charcoal, casks and ships
• •White willow, used in the manufacture of aspirin, cricket bats, hot-air balloon baskets and coffins.