Cassia marksiana

The common name is in honour of Dr. C. F. Marks, an early botanical collector.

The Brunswick River is considered the southernmost point of natural distribution.

Its habitat is seaside and lowland subtropical rainforest, which is almost completely destroyed, with only small remnant patches remaining.

It is a small to medium-sized tree, up to 25 m tall and a stem diameter of 50 cm.

Showy and attractive yellow flowers form on racemes from September to November.