''Scaevola thesioides'' is a species of flowering plant in the family

Goodeniaceae Goodeniaceae is a family of flowering plants in the order Asterales. It contains about 404 species in twelve genera. The family is distributed mostly in Australia, except for the genus '' Scaevola'', which is pantropical. Its species are found a ...

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 els ...

to the southwest of Western Australia. It is a spreading subshrub to

perennial A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...

herb with thread-like to lance-shaped leaves and hairy, fan-shaped, pale blue to white flowers.

Description

''Scaevola thesioides'' is a spreading subshrub to perennial herb that typically grows to a height of up to and is mostly

glabrous Glabrousness (from the Latin '' glaber'' meaning "bald", "hairless", "shaved", "smooth") is the technical term for a lack of hair, down, setae, trichomes or other such covering. A glabrous surface may be a natural characteristic of all or part o ...

. The leaves are sessile, thread-like to lance-shaped with the narrower end toward the base, long and up to wide. The flowers are arranged on the ends of branches in spikes up to long. The bracts are narrowly triangular or thread-like, long and the bracteoles thread-like and long. The petals are long, light blue to white, hairy inside, the

wings A wing is a type of fin that produces lift while moving through air or some other fluid. Accordingly, wings have streamlined cross-sections that are subject to aerodynamic forces and act as airfoils. A wing's aerodynamic efficiency is exp ...

about wide. Flowering mainly occurs from August to December and the fruit is cylindrical to oval, and about in diameter.

Taxonomy

''Scaevola thesioides'' was first formally described in 1837 by

George Bentham George Bentham (22 September 1800 – 10 September 1884) was an English botanist, described by the weed botanist Duane Isely as "the premier systematic botanist of the nineteenth century". Born into a distinguished family, he initially studi ...

and the description was published in ''Enumeratio plantarum quas in Novae Hollandiae ora austro-occidentali ad fluvium Cygnorum et in Sinu Regis Georgii collegit Carolus liber baro de Hügel''. 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 ...

(''thesioides'') means '' Thesium''-like.

Distribution and habitat

This scaevola grows in near-coastal areas of south-western

Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to ...

in the Coolgardie,

Esperance Plains Esperance Plains, also known as Eyre Botanical District, is a biogeographic region in southern Western Australia on the south coast between the Avon Wheatbelt and Hampton bioregions, and bordered to the north by the Mallee region. It is ...

Geraldton Sandplains Geraldton ( Wajarri: ''Jambinu'', Wilunyu: ''Jambinbirri'') is a coastal city in the Mid West region of the Australian state of Western Australia, north of the state capital, Perth. At June 2018, Geraldton had an urban population of 37,648. ...

, Mallee and

Swan Coastal Plain The Swan Coastal Plain in Western Australia is the geographic feature which contains the Swan River as it travels west to the Indian Ocean. The coastal plain continues well beyond the boundaries of the Swan River and its tributaries, as a geo ...

bioregions.

References

{{Taxonbar, from=Q17480679 thesioides Flora of Western Australia Plants described in 1837 Taxa named by George Bentham