Acronychia crassipetala, commonly known as crater aspen,[1] is a species of small rainforest tree that is endemic to north-eastern Queensland. It has simple, elliptic to egg-shaped leaves on cylindrical stems, flowers in small groups, and fleshy, more or less spherical fruit.
Acronychia crassipetala is a tree that typically grows to a height of and has more or less cylindrical stems. The leaves are simple, glabrous, elliptical to egg-shaped with the narrower end towards the base, long and wide on a petiole long. The flowers are arranged in small groups long, each flower on a pedicel long. The four sepals are wide, the four petals long and the eight stamens alternate in length. Flowering occurs from October to April and the fruit is a fleshy, more or less spherical drupe long.[2] [3]
Acronychia crassipetala was first formally described in 1974 by Thomas Gordon Hartley in the Journal of the Arnold Arboretum from specimens collected on Mount Spurgeon.[4] [5]
This tree grows in rainforest between the Windsor Tablelands and the Atherton Tableland at an altitudes of .
Crater aspen is classified as of "least concern" under the Queensland Government Nature Conservation Act 1992.