Silver Dollar Gum, Argyle Apple. The Eucalyptus cinerea grows to an average of 20 to 30 feet tall. Young leaves are round, grey-green, and about 1 inch in diameter and grow opposite each other on the stem. They become longer, more oval shaped with pointed ends as they get older. The flowers are a creamy white and grow in 1 inch clusters. The bark is reddish-brown and fibrous. Because of its aromatic and long lasting quality, the young leaves are a "best seller" as medicines to treat many sicknesses such as: infections, colds, flu, sore throats, bronchitis, pneumonia, aching, stiffness, neuralgia and even some skin infections.