Eucalyptus
(Eucalyptus globulus)
Also known as Blue gum and Fever tree,
eucalyptus can be used to treat bronchitis and asthma and to kill
germs. The aromatic oil of the leaves and resin kills germs. Steam
inalations are excellent in treating asthma and bronchitis. It is
famous for its aroma, and can be used as an air freshener, in
sachets, or in potpurri.