Grevillea mucronulata
Encyclopedia
Grevillea mucronulata, also known as Green Spider Flower, is a shrub
Shrub
A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience...

 which is endemic to New South Wales
New South Wales
New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...

 in Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

.

Description

This species is a spreading to erect shrub which usually grows to between 0.3 and 2 metres in height. Leaf shape is variable, ranging from narrow elliptic to almost round. The green flowers appear predominantly from late autumn to mid spring (May to October in Australia) .

Distribution

The species occurs in dry sclerophyll
Sclerophyll
Sclerophyll is the term for a type of vegetation that has hard leaves and short internodes . The word comes from the Greek sclero and phyllon ....

 woodland or heathland in the upper Hunter Valley
Hunter Valley
The Hunter Region, more commonly known as the Hunter Valley, is a region of New South Wales, Australia, extending from approximately to north of Sydney with an approximate population of 645,395 people. Most of the population of the Hunter Region lives within of the coast, with 55% of the entire...

, the Sydney
Sydney
Sydney is the most populous city in Australia and the state capital of New South Wales. Sydney is located on Australia's south-east coast of the Tasman Sea. As of June 2010, the greater metropolitan area had an approximate population of 4.6 million people...

 region and southward along the coast towards Eden
Eden, New South Wales
Eden is a coastal town in the South Coast region of New South Wales, Australia. The town, south of the state capital Sydney near the border with Victoria, is located between Nullica Bay to the south and Calle Calle Bay, the northern reach of Twofold Bay, and built on undulating land adjacent to a...

 where it is found in isolated pockets.

Taxonomy

The species was first formally described in 1810 by botanist Robert Brown
Robert Brown (botanist)
Robert Brown was a Scottish botanist and palaeobotanist who made important contributions to botany largely through his pioneering use of the microscope...

 with reference to the type specimen collected from Port Jackson
Port Jackson
Port Jackson, containing Sydney Harbour, is the natural harbour of Sydney, Australia. It is known for its beauty, and in particular, as the location of the Sydney Opera House and Sydney Harbour Bridge...

.

Synonyms include:
  • Embothrium acuminatum (R.Br.) Dum.Cours.
  • Grevillea acuminata R.Br.
  • Grevillea acuminata A.Cunn. ex Meisn. nom. inval.
  • Grevillea attenuata A.Cunn. ex Meisn.
  • Grevillea cinerea R.Br.
  • Grevillea cinerea R.Br. var. cinerea
  • Grevillea cinerea var. angustifolia Benth.
  • Grevillea cinerea var. myrtacea Meisn.
  • Grevillea mucronulata var. angustifolia Benth.
  • Grevillea myrtacea Sieber
    Franz Sieber
    Franz Wilhelm Sieber , was a botanist and collector who travelled to Europe, the Middle East, Southern Africa and Australia.-Early Life:Franz Sieber was born in Prague, on 30 March 1789....

     ex Spreng.
  • Grevillea myrtacea Sieber ex Schult. & Schult.f nom. illeg.


Natural hybrids are formed with other species including:
  • Grevillea juniperina
    Grevillea juniperina
    Grevillea juniperina, commonly known as Juniper Grevillea, is a shrub which is endemic to eastern New South Wales and south-eastern Queensland in Australia....

    subsp. juniperina
  • Grevillea arenaria
    Grevillea arenaria
    Grevillea arenaria is a shrub which is endemic to the east of New South Wales in Australia. It has an erect to spreading habit and grows to between 1 and 3 metres in height. Its leaves are 1.5 to 7 cm long and 3 to 15 mm in width. The flowers, which occur in groups of 2 to 10, are pink, red or...

    subsp. arenaria


A number of naturally occurring forms have been noted as follows:
  • 'Lower Blue Mountains form'
  • 'Cumberland Plain
    Cumberland Plain
    The Cumberland Plain is a region in the Sydney Basin of New South Wales, Australia. The plain extends from 10 kilometres north of Windsor in the north, to Picton in the south; and...

     form'
  • 'large-leaved form'
  • 'Picton
    Picton, New South Wales
    Picton is a small town in the Macarthur Region of New South Wales, Australia, in the Wollondilly Shire. The town is located 80 kilometres South-west of Sydney, close to Camden and Campbelltown. It is also the administrative centre of Wollondilly Shire....

     form'.

Cultivation

As the green flowers are camouflaged within the foliage, this species has not proved as popular in horticulture as other species within the genus, beyond being grown by collectors.

Cultural references

A 50c Australian postage stamp
Postage stamp
A postage stamp is a small piece of paper that is purchased and displayed on an item of mail as evidence of payment of postage. Typically, stamps are made from special paper, with a national designation and denomination on the face, and a gum adhesive on the reverse side...

depicting the Green Spider Flower was issued in February 2007.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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