Cupaniopsis serrata

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Cupaniopsis serrata, commonly known as smooth tuckeroo, is a flowering tree in the soapberry family native to eastern Australia.

- Size: It can be a shrub or small tree, growing about 4–25 meters tall with a trunk up to about 30 cm in diameter.
- Leaves: The leaves are compound (paripinnate) with 6–12 leaflets, each leaflet about 60–125 mm long and around 25 mm wide, ending in a point. The leaf stalk (rachis) is 45–145 mm long.
- Branches and stems: They have soft, rusty-brown hairs with lenticels on the branchlets and petioles.
- Flowers: Male and female flowers are separate and arranged in short racemes. Flowers have small white petals.
- Fruit: The fruit is a small, rounded drupe about 12–16 mm long and 25–28 mm wide, covered with velvety hairs, containing a seed surrounded by an orange aril.
- Habitat: Smooth tuckeroo grows on rocky hillsides and in rainforest from Gympie in southeastern Queensland to the Tweed River in northern New South Wales.
- Taxonomy: It was first described in 1862 by Ferdinand von Mueller as Cupania serrata. In 1879, Ludwig Radlkofer moved it to Cupaniopsis, giving the current name Cupaniopsis serrata.
- Conservation: It is listed as a threatened species under the New South Wales Biodiversity Conservation Act 2016.