Eucalyptus sieberi, commonly known as the silvertop ash or black ash, is a species of medium-sized to tall tree that is endemic to south-eastern Australia. It has rough bark on the trunk and the base

In botany, a pedicel is a stalk that attaches a single flower to the inflorescence. Such inflorescences are described as pedicellate. The stalk at the base of a leaf is called a petiole.