Acronychia eungellensis, commonly known as the eungella aspen, is a species of flowering plant in the citrus family, Rutaceae. This tree is endemic to a restricted area within Queensland, Australia, and holds significance as a component of its native ecological communities. The eungella aspen is a small to medium-sized tree, typically reaching heights of 8 to 15 meters, though it can occasionally grow taller. Its growth habit is generally upright, with a slender trunk and a spreading canopy. The bark is smooth and greyish, becoming slightly rougher with age. The leaves are compound, arranged oppositely along the stems. Each leaf typically consists of three to seven leaflets, which are ovate to elliptic in shape, measuring about 5 to 12 cm long and 2 to 5 cm wide. The upper surface of the leaflets is glossy and dark green, while the underside is paler and may have a fine covering of hairs. The margins of the leaflets are entire. Flowering occurs from late spring through summer, producing clusters of small, fragrant flowers. The flowers are typically white or cream-colored and possess four petals. They are borne in axillary or terminal panicles. Following successful pollination, the plant develops fruit, which are drupes. These fruits are globose to ovoid, about 1 to 1.5 cm in diameter, and mature to a yellowish or greenish-brown color. The fruit contains one or two seeds. The native distribution of Acronychia eungellensis is confined to the Eungella region of Queensland, specifically within the rainforests of the Clarke Range. It thrives in moist, sheltered environments, often found growing along creek banks and in gullies within the understory or as a component of the mid-canopy. While its natural habitat is limited, it is cultivated in suitable climates for its ornamental appeal. It prefers well-drained soils and a position that offers some protection from harsh sun and wind. Ecologically, Acronychia eungellensis plays a role in supporting local fauna, with its fruits likely consumed by birds and other animals. Its specific biological or economic importance beyond its native ecological context is not widely documented. The plant's adaptation to its specific rainforest environment, including its preference for moist conditions and its role within the forest structure, are key characteristics that define its ecological niche. The fragrant flowers and attractive foliage make it a desirable specimen for those seeking to cultivate Australian native plants in appropriate settings.