Eucalyptus oblonga, known by the common name Stringybark, is a tree native to eastern Australia. It has thick, fibrous stringy bark usually colored grey over reddish brown. Occurring on the poorest soils in high rainfall areas. Restricted and localised around Sydney

Sydney

Sydney is the most populous city in Australia and the state capital of New South Wales. Sydney is located on Australia's south-east coast of the Tasman Sea. As of June 2010, the greater metropolitan area had an approximate population of 4.6 million people...

. Well suited to skeletal soils and frequent fires.

Referred to as Narrow-Leaved Stringybark in textbooks, but as Stingybark by locals. The leaves are not particularly narrow,
being 6 to 10 cm long, 1.5 to 2.8 cm wide. The same shade of green on both sides, somewhat glossy. Lanceolate or sickle shaped, alternate on the stem. Juvenile leaves starting as opposite on the stem, ovate in shape.

A small tree up to 15 metres tall. Flowering in late summer to Easter. Gumnuts are practically stalkless

Sessility (botany)

In botany, sessility is a characteristic of plants whose flowers or leaves are borne directly from the stem or peduncle, and thus lack a petiole or pedicel...

, crowded together, up to 8 mm in diameter.