''Grevillea hirtella'' 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 west of Western Australia. It is a spreading shrub with crowded linear and divided leaves and clusters of pale pink to deep red flowers.

Description

''Grevillea hirtella'' is a spreading shrub that typically grows to up to high and wide and has hairy branchlets. Its leaves are crowded, some leaves linear, long, some divided with two or three lobes long and long. The upper surface of the leaves is more or less

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 of ...

and the edges are rolled under, obscuring the lower surface. The flowers are arranged in down-turned clusters of ten to sixteen on a

rachis In biology, a rachis (from the grc, ῥάχις [], "backbone, spine") is a main axis or "shaft". In zoology and microbiology In vertebrates, ''rachis'' can refer to the series of articulated vertebrae, which encase the spinal cord. In this c ...

long. The flowers are pale pink to deep pinkish red, the

style Style is a manner of doing or presenting things and may refer to: * Architectural style, the features that make a building or structure historically identifiable * Design, the process of creating something * Fashion, a prevailing mode of clothing ...

with a green tip, 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'' ...

long. Flowering mainly occurs from August to November and the fruit is an oblong to elliptic follicle long.

Taxonomy

This grevillea was first formally described in 1870 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 ...

who gave it the name ''Grevillea pinaster'' var. ''hirtella'' in ''

Flora Australiensis ''Flora Australiensis: a description of the plants of the Australian Territory'', more commonly referred to as ''Flora Australiensis'', and also known by its standard abbreviation ''Fl. Austral.'', is a seven-volume flora of Australia published be ...

'' from specimens collected by Pemberton Walcott near

Champion Bay Champion Bay is a coastal feature north of Geraldton, Western Australia, facing the port and city between Point Moore and Bluff Point. Champion Bay was named by Lieutenant John Lort Stokes of , who surveyed the area in April 1840. He named it ...

. In 1994,

Peter M. Olde Peter may refer to: People * List of people named Peter, a list of people and fictional characters with the given name * Peter (given name) ** Saint Peter (died 60s), apostle of Jesus, leader of the early Christian Church * Peter (surname), a sur ...

and

Neil R. Marriott Neil is a masculine name of Gaelic and Irish origin. The name is an anglicisation of the Irish ''Niall'' which is of disputed derivation. The Irish name may be derived from words meaning "cloud", "passionate", "victory", "honour" or "champion".. A ...

raised the variety to species status as ''Grevillea hirtella'' in ''The Grevillea Book''. 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 ...

(''hirtella'') means "somewhat hairy".

Distribution and habitat

''Grevillea hirtella'' grows in open heathland on sandy or loamy soils of up to 200m above sea level in scattered populations between Mingenew and Walkaway in the

Avon Wheatbelt The Avon Wheatbelt is a bioregion in Western Australia. It has an area of . It is considered part of the larger Southwest Australia savanna ecoregion. Geography The Avon Wheatbelt bioregion is mostly a gently undulating landscape with low reli ...

and

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. ...

bioregions of Western Australia. It is limited to an estimated

extent of occurrence Extent may refer to: Computing * Extent (file systems), a contiguous region of computer storage medium reserved for a file * Extent File System, a discontinued file system implementation named after the contiguous region * Extent, a chunk of st ...

of 3,000km².

Conservation status

''Grevillea hirtella'' is currently listed as

Endangered An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inva ...

on the

IUCN Red List of Threatened Species The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biologi ...

and as " Priority Three" by the Government of Western Australia

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 ...

, meaning that it is poorly known and known from only a few locations but is not under imminent threat. This species has lost much of its population and habitat through land clearing for agriculture and road development. It is now mainly restricted to road verges, where it is threatened by verge clearing and competition with weeds, including both native and invasive species.

References

{{Taxonbar, from=Q15578889

hirtella ''Hirtella'' is a genus of 110 species of woody trees in family Chrysobalanaceae. It was first described as a genus by Linnaeus in 1753. ''Hirtella'' naturally occurs in tropical forests throughout Latin America, the West Indies, southeast Afri ...

Endemic flora of Western Australia Eudicots of Western Australia Proteales of Australia Taxa named by George Bentham Plants described in 1870

Description

Taxonomy

Distribution and habitat

Conservation status

See also

References