Bosistoa transversa is a tree that typically grows to a height of 15–22 m (49–72 ft) and has a cylindrical, sometimes crooked trunk.

The trunk has a diameter of 8–20 cm (3.1–7.9 in) and has mostly smooth dark brown bark with irregular horizontal ridges.

Appearing from January to March, the tiny white flowers are arranged in panicles 70–160 mm (2.8–6.3 in) long, on the ends of branches or in upper leaf axils.

Flowering occurs from December to May and is followed by pairs of small woody, oval follicles that ripen from May to July.

[5] The generic name Bosistoa honours the name of Joseph Bosisto, a manufacturer of essential oils.