''Prostanthera campbellii'' is a species of flowering plant in the family

Lamiaceae The Lamiaceae ( ) or Labiatae are a family of flowering plants commonly known as the mint, deadnettle or sage family. Many of the plants are aromatic in all parts and include widely used culinary herbs like basil, mint, rosemary, sage, savory ...

and is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to the south-west of Western Australia. It is an erect shrub with linear leaves and white to cream-coloured flowers with purple striations.

Description

''Prostanthera campbellii'' is an erect shrub that typically grows to a height of . The leaves are linear, yellowish green, long, wide and

sessile Sessility, or sessile, may refer to: * Sessility (motility), organisms which are not able to move about * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant * Sessility (medicine), tumors and polyps that ...

. The flowers are arranged singly in two to sixteen upper leaf axils, each flower on a

pedicel Pedicle or pedicel may refer to: Human anatomy *Pedicle of vertebral arch, the segment between the transverse process and the vertebral body, and is often used as a radiographic marker and entry point in vertebroplasty and kyphoplasty procedures ...

long. The

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...

s are green and form a tube long with two lobes, the lower lobe long and the upper lobe long. The petals are white to cream-coloured with purple striations near the base of the lobes, long and fused to form a tube long. The lower lip has three lobes, the centre lobe spatula-shaped, long and wide and the side lobes long and wide. The upper lip has two lobes long and wide. Flowering occurs from July to November.

Taxonomy

''Prostanthera campbellii'' was first formally described in 1882 by

Ferdinand von Mueller Baron Sir Ferdinand Jacob Heinrich von Mueller, (german: Müller; 30 June 1825 – 10 October 1896) was a German-Australian physician, geographer, and most notably, a botanist. He was appointed government botanist for the then colony of Vict ...

in the journal ''Southern Science Record'' from specimens collected by

John Forrest Sir John Forrest (22 August 1847 – 2 SeptemberSome sources give the date as 3 September 1918 1918) was an Australian explorer and politician. He was the first premier of Western Australia (1890–1901) and a long-serving cabinet minister i ...

near the

Gascoyne River The Gascoyne River is a river in the Gascoyne region of Western Australia. At , it is the longest river in Western Australia. Description The Gascoyne River comprises three branches in its upper reaches. Draining the Collier Range, the river ...

. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

honours the politician

Thomas Cockburn-Campbell Sir Thomas Cockburn-Campbell, 4th Baronet (18 April 1845 – 27 September 1892) was an English-born journalist and politician in Australia. __NOTOC__ Early life Cockburn-Campbell was born in Exeter, the second son of Sir Alexander Thomas Cockbu ...

Distribution and habitat

This mintbush grows on granite outcrops and rocky places in the

South-West The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each se ...

and

Eremaean The Eremaean province is a botanical region in Western Australia, characterised by a desert climate. It is sometimes referred to as the ''dry and arid inland'' or ''interior'' region of Western Australia It is one of John Stanley Beard's phytoge ...

botanical regions of Western Australia.

Conservation status

''Prostanthera campbellii'' is classified as "not threatened" by the Western Australian Government

Department of Parks and Wildlife The Department of Parks and Wildlife (DPaW) was the department of the Government of Western Australia responsible for managing lands described in the ''Conservation and Land Management Act 1984'' and implementing the state's conservation and e ...

References

{{Taxonbar, from=Q15355261 campbellii Flora of Western Australia Lamiales of Australia Taxa named by Ferdinand von Mueller Plants described in 1882