Erythrostemon gilliesii is a large evergreen shrub with 2-pinnate leaves. It is upright, open, and rounded with yellow flowers and long crimson stamens. This plant grows up to 5m (16.5 ft), depending on rainfall. The leaves are bipinnate, long, bearing 3–10 pairs of pinnae, each with 6–10 pairs of leaflets long and broad. The
flowers are borne in
racemes up to long, each flower with five yellow petals with 10 long conspicuous red
stamens. The pods are densely covered in short, red glandular hairs. ==Cultivation==