Noah's Walnut

Endiandra microneura is a buttressed tree growing up to 30 m (98 ft) tall. The young twigs are fluted and finely hairy but become hairless when older. Leaves are glossy green, arranged alternately on either side of the twigs and measure up to 15 cm (5.9 in) long and 6.5 cm (2.6 in) wide. Oil dots are present and visible with a hand lens. Inflorescences take the form of a panicle and emerge from the leaf axils. The flowers are very small, with six tepals about 1 mm (0.04 in) long. The flowers are cream or white and fragrant. Anthers are about 0.6 mm long and attached by a filament about 0.1 mm long. The ovary is about 0.7 mm long and wide. The fruit is a glossy, ovoid, yellow or orange drupe measuring up to 8 cm (3.1 in) long and 6.5 cm (2.6 in) wide. It contains a single brown ellipsoid seed up to 6.5 cm (2.6 in) long and 4.5 cm (1.8 in) wide.

Noah's walnut is mostly restricted to lowland areas between the Daintree River and Cape Tribulation, with a handful of occurrences being recorded from other parts of the Daintree National Park. It is estimated that the area of occupancy is about 108 km2 (42 sq mi). The species grows in rainforest on metamorphic soils.