PlantaeDB Logo
Login Sign-up

Genus Atherosperma in Family Atherospermataceae

In botanical taxonomy, a genus (plural genera) is a rank used to group closely related species within a family. In the hierarchy, genus sits below family and above species.

Genera are defined by shared morphological, anatomical, and genetic characteristics (for example, features of flowers, fruits, seeds, or leaves) that indicate a close evolutionary relationship among the species they contain.

Each genus can include one or more species. Examples include Rosa (roses) and Solanum (nightshades, including tomato and eggplant).

Do you wish to read more about plant taxonomy? Click here!

Genus Description

Suggest a correction!

Atherosperma Labill. is placed in Atherospermataceae within the order Laurales (APG IV, 2016). The genus is essentially monotypic; POWO (2024) records only Atherosperma moschatum Labill. as accepted, making its species richness about one. The plant occurs throughout the Australian Alps of southeastern Australia, from New South Wales to alpine Victoria and lowland Tasmania, in wet sclerophyll, rainforest and sub‑alpine habitats.

Morphologically Atherosperma is an evergreen shrub or small tree 5–20 m tall. Leaves are opposite, leathery, entire to shallowly toothed, aromatic, and lack stipules; young twigs have a fine indumentum of simple hairs. Small unisexual flowers are borne in axillary racemes, each with a 5‑parted calyx, about 20 stamens, and free carpels bearing a single ovule. The fruit is a dry achene whose persistent style expands into a feathery pappus for wind dispersal (Hyland & Wilson, 2018).

The species is confined to cool, moist forests of southeastern Australia, ranging from New South Wales coast to alpine Victoria and lowland Tasmania. POWO (2024) records it from sea‑level wet sclerophyll to sub‑alpine scrub up to ~1,500 m, while Hughes & Jørgensen (2015) note its niche in wet sclerophyll and rainforest margins.

Pollination is primarily by small beetles and flies, consistent with the beetle‑pollination syndrome widespread in Laurales (Hyland & Wilson, 2018). Seed dispersal is wind‑mediated through the achene’s feathery style. The plant is evergreen, multistemmed, and produces aromatic leaf oils that deter herbivores.

Molecular phylogenies place Atherosperma in Atherospermataceae as sister to Daphnandra and Doryphora (Hughes & Jørgensen, 2015). The genus is monotypic with no subgenera (POWO, 2024). Historically included in Monimiaceae, but APG treatment and recent phylogenomics separate it (APG IV, 2016). Some authors have suggested varietal status for Tasmanian populations, but these taxa are not widely accepted.

Atherosperma moschatum is cultivated as an ornamental for its fragrant evergreen foliage and graceful habit, used in native gardens and public plantings (Hyland & Wilson, 2018). Its aromatic wood is prized for furniture and cabinetry.

GBIF (2024) records numerous localities, indicating a broad distribution. Nevertheless, local studies note that habitat fragmentation and climate‑induced range shifts may pose pressures (Hughes & Jørgensen, 2015). Continued monitoring and climate‑resilience research will be essential for long‑term conservation.

Pick a Species to see its components: