Beyeria viscosa, commonly known as the pinkwood or sticky wallaby bush (New South Wales), is a species of flowering plant in the spurge family, Euphorbiaceae, that is endemic to Australia.

Leaves are spirally arranged, oblong to oblanceolate from 2–5 cm long by 5–15 mm wide tapering towards the petiole with flat or with slightly recurved margins.

Male flowers are cream-yellow and clustered in groups of 2 or 3 with 4 mm long sepals and numerous short stamens.

Female flowers lack petals and are solitary with 2–3 mm long sepals, roughly globose ovary and large sessile stigma.

Plants prefer poor, well drained soils on semi-shaded sites and are abundant in riparian habitats, gullies and on rocky hills and ridges where they can form dense stands.