Plants in the genus Tasmannia are shrubs or small trees, usually dioecious with simple leaves, mostly white, sometimes yellow flowers, and one to many clusters of berries.

Plants in the genus Tasmannia are shrubs or small trees that are usually dioecious, with simple, aromatic leaves arranged alternately along the branchlets, and have fine oil dots.

The flowers are usually white, sometimes yellow and arranged singly in the axils of bud scales, appearing like an umbel, later becoming like a whorl.

[2][3][4] The genus Tasmannia was first formally described by published by Augustin Pyramus de Candolle in his Regni Vegetabilis Systema Naturale, from an unpublished description by Robert Brown (botanist, born 1773).

[7] The following is a list of Tasmannia species accepted by Plants of the World Online as at April 2024:[8] In Australia, the genus Tasmannia ranges from Tasmania and eastern Victoria and New South Wales to southeastern Queensland, and in the mountains of northeastern Queensland, where it grows in moist mountain forests and in wet areas in the drier forest and along watercourses to an elevation of 1500 m (5000 ft).