Calothamnus lateralis

Calothamnus lateralis is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a small, spreading shrub with long, cylindrical leaves and blood red flowers with their bases buried in the plant's corky bark.

Description

Calothamnus lateralis grows to about high and wide. Its leaves are mostly long, narrow and circular in cross section. The flowers are blood red and arranged in spikes long on one side of the stems. The flowers are buried in the corky bark so that only the tips of the sepals, the petals, stamens, stigma and style are visible. The stamens are arranged in four, narrow, claw-like bundles. Flowering can occur in almost any month of the year and is followed by fruits which are woody capsules.
In describing this species, John Lindley wrote:

Taxonomy and naming

Calothamnus lateralis was first formally described by John Lindley in 1839 in A Sketch of the Vegetation of the Swan River Colony. The specific epithet is a Latin word meaning "lateral" or "belonging to the side" referring to the flowers being arranged on one side of the stem.

Distribution and habitat

Calothamnus lateralis occurs from Perth along the south-west coast to Albany, [Western Australia|Albany] and the Stirling Range in the Jarrah Forest, Swan Coastal Plain and Warren biogeographic regions. It grows in peaty sand or clay in swamps and areas that are flooded in winter.

Conservation

Calothamnus lateralis is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.