Hakea Circumalata
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''Hakea circumalata'' is a shrub 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 ...
native to an area in the Wheatbelt and
Mid West The Midwestern United States, also referred to as the Midwest or the American Midwest, is one of four Census Bureau Region, census regions of the United States Census Bureau (also known as "Region 2"). It occupies the northern central part of ...
regions of
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 th ...
. A small shrub producing a profusion of strongly scented pink to red flowers in dense clusters from July to September.


Description

''Hakea circumulata'' is a non
lignotuberous A lignotuber is a woody swelling of the root crown possessed by some plants as a protection against destruction of the plant stem, such as by fire. Other woody plants may develop basal burls as a similar survival strategy, often as a response t ...
compact or low open shrub typically growing to a height of . Smaller branches are densely covered with short, soft, flattened rusty coloured hairs. The rigid needle-shaped leaves are long and wide. The leaves grow upright, slightly tapering with a very sharp point at the apex. The
inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...
consists of 6-12 strongly scented white, pink or reddish brown clusters of flowers. Inflorescence are supported on a stem long covered in long soft hairs. The
bract In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves. They may be smaller, larger, or of ...
s surrounding the flowers are long. The
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 ...
s are long with white hairs, occasionally with glands on the tips. The white and pink
perianth The perianth (perigonium, perigon or perigone in monocots) is the non-reproductive part of the flower, and structure that forms an envelope surrounding the sexual organs, consisting of the calyx (sepals) and the corolla (petals) or tepals when ...
are smooth or having coarse longish hairs. 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 ...
is long. Flowers appear in leaf axils on the smaller branches from July to September. Fruit are erect on the stem, egg-shaped and often solitary ending in two prominent horns. The surface is smooth in between the many small rounded protuberances. The fruit have two winged, silky, dark brown seeds and are retained on the shrub.


Taxonomy and naming

''Hakea circumalata'' was first formally described by botanist
Carl Meisner Carl Daniel Friedrich Meissner (1 November 1800 – 2 May 1874) was a Swiss botanist. Biography Born in Bern, Switzerland on 1 November 1800, he was christened Meisner but later changed the spelling of his name to Meissner. For most of his 40 ...
in 1855 and the description was published in ''
Hooker's Journal of Botany and Kew Garden Miscellany ''Hooker's Journal of Botany and Kew Garden Miscellany'' was a scientific journal In academic publishing, a scientific journal is a periodical publication intended to further the progress of science, usually by reporting new research. Cont ...
''. 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 ...
(''circumalata'') is derived from the
Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...
word ''circum'' meaning "around" and ''alatus'' meaning "winged" referring to the seed which is surrounded by a wing.


Distribution and habitat

''Hakea circumalata'' grows from
Shark Bay Shark Bay (Malgana: ''Gathaagudu'', "two waters") is a World Heritage Site in the Gascoyne region of Western Australia. The http://www.environment.gov.au/heritage/places/world/shark-bay area is located approximately north of Perth, on the ...
ranging south through to
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 ...
and Corrigin. It grows on clay, deep sand and sand with
lateritic Laterite is both a soil and a rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical areas. Nearly all laterites are of rusty-red coloration, because of high iron oxide content. They develop by ...
gravel in heath and low woodland. Requires full sun and a well-drained site. An ornamental species that tolerates moderate frosts. A good wildlife habitat due to its prickly dense growth habit.


Conservation status

''Hakea circumalata'' 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=Q18082847 circumalata Eudicots of Western Australia Plants described in 1855 Taxa named by Carl Meissner