''Grevillea biternata'' is a species of flowering plant in the family

Proteaceae The Proteaceae form a family of flowering plants predominantly distributed in the Southern Hemisphere. The family comprises 83 genera with about 1,660 known species. Together with the Platanaceae and Nelumbonaceae, they make up the order Pro ...

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 a shrub with divided leaves with linear lobes and clusters of white flowers.

Description

''Grevillea biternata'' is a shrub that typically grows to a height of and usually has branchlets densely covered with soft, woolly hairs. The leaves are usually divided with two to three linear lobes, the lobes long, wide and sharply pointed. The flowers are arranged in cone-shaped or cylindrical groups of eight to thirty on a rachis long, and are pale pale green in the bud stage, later white. The

pistil Gynoecium (; ) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of (one or more) ''pistils'' ...

is long. Flowering occurs from July to November and the fruit is an oblong follicle long.

Taxonomy

''Grevillea biternata'' was first formally described in 1845 by Carl Meissner in Johann Georg Christian Lehmann's ''

Plantae Preissianae ''Plantae preissianae sive enumeratio plantarum quas in australasia occidentali et meridionali-occidentali annis 1838-1841 collegit Ludovicus Preiss'', more commonly known as ''Plantae preissianae'', is a book written by Johann Georg Christian Leh ...

'' from specimens collected by James Drummond in the

Swan River Colony The Swan River Colony, also known as the Swan River Settlement, or just Swan River, was a British colony established in 1829 on the Swan River, in Western Australia. This initial settlement place on the Swan River was soon named Perth, and it ...

. 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 ...

(''biternata'') means "twice-ternate", referring to the three leaflets of each leaf.

Distribution and habitat

This grevillea grows in heath or mallee-woodland between

New Norcia New is an adjective referring to something recently made, discovered, or created. New or NEW may refer to: Music * New, singer of K-pop group The Boyz Albums and EPs * ''New'' (album), by Paul McCartney, 2013 * ''New'' (EP), by Regurgitator, ...

Northampton Northampton () is a market town and civil parish in the East Midlands of England, on the River Nene, north-west of London and south-east of Birmingham. The county town of Northamptonshire, Northampton is one of the largest towns in England; ...

, Wubin and

Wongan Hills Wongan Hills is a range of low flat-topped hills in the Avon Wheatbelt bioregion of Western Australia. It is located at , in the Shire of Wongan–Ballidu. History The range was first recorded in 1836 by Surveyor General of Western Australia Jo ...

in the Avon Wheatbelt, Geraldton Sandplains,

Jarrah Forest Jarrah forest is tall open forest in which the dominant overstory tree is ''Eucalyptus marginata'' (jarrah). The ecosystem occurs only in the Southwest Botanical Province of Western Australia. It is most common in the biogeographic region named in ...

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 geol ...

bioregions of south-western Western Australia.

Conservation status

''Grevillea biternata'' is listed as "not threatened" by the

Department of Biodiversity, Conservation and Attractions The Department of Biodiversity, Conservation and Attractions (DBCA) is the Western Australian government The Government of Western Australia, formally referred to as His Majesty's Government of Western Australia, is the Australian state de ...

and as "Least Concern" on the IUCN Red List of Threatened Species. It has no major threats, either current or in the near future. Although the population is suspected to be decreasing, it is not declining significantly enough to warrant a threatened or near-threatened category.

References

{{Taxonbar, from=Q5607884 biternata Endemic flora of Western Australia Eudicots of Western Australia Proteales of Australia Taxa named by Carl Meissner