Tetratheca
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Tetratheca
''Tetratheca'' is a genus of around 50 to 60 species of shrubs endemic to Australia. It is classified in the botanical family Elaeocarpaceae, now known to encompass the family Tremandraceae, which the genus originally belonged to. It occurs throughout extratropical Australia, and has been recorded in every mainland state except the Northern Territory. Origin and evolution The origin of the genus is thought to be south-western Western Australia, radiating eastward. The distribution of ''Tetratheca'' is mainly across the temperate southern part of the continent. Most species are localised endemics and are highly disjunct from each other. Very few are widespread across Australia; none occurs in the Nullarbor Plain and only seven are found on both the western and the south-eastern sides. (McPherson, 2008). The formation of the Nullarbor is thought to have created a barrier to dispersal between the east and west. It is estimated that the family Elaeocarpaceae is 120 million years ...
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Tetratheca Thymifolia 01
''Tetratheca'' is a genus of around 50 to 60 species of shrubs endemic to Australia. It is classified in the botanical family Elaeocarpaceae, now known to encompass the family Tremandraceae, which the genus originally belonged to. It occurs throughout extratropical Australia, and has been recorded in every mainland state except the Northern Territory. Origin and evolution The origin of the genus is thought to be south-western Western Australia, radiating eastward. The distribution of ''Tetratheca'' is mainly across the temperate southern part of the continent. Most species are localised endemics and are highly disjunct from each other. Very few are widespread across Australia; none occurs in the Nullarbor Plain and only seven are found on both the western and the south-eastern sides. (McPherson, 2008). The formation of the Nullarbor is thought to have created a barrier to dispersal between the east and west. It is estimated that the family Elaeocarpaceae is 120 million years ...
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Tetratheca Hirsuta
''Tetratheca hirsuta'', commonly known as black-eyed Susan, is a small shrub in the family Elaeocarpaceae. Endemic to the south-west of Western Australia, it is not related to other plants known as black-eyed Susan around the world. Appearance ''Tetratheca hirsuta'' has an erect, climbing habit, growing to between 0.1 and 0.9 (4–36 in) metres high. It has a woody rootstock from which arise multiple rough stems which are hairy at their upper ends. The green hairy leaves are arranged alternately, oppositely or in whorls and measure 0.5–2.5 cm (0.2–1 in) by 0.5–1 cm (0.2–0.4 in). Pink flowers appear between July and December in the species' native range. They appear on stalks around 3 cm (1.2 in) in length and are 2 cm (0.8 in) in diameter. They have five deep pink or purple-tinted petals. History The species was first formally described by English botanist John Lindley in 1839 in '' A sketch of the vegetation of the Swan River ...
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Tetratheca Bauerifolia
''Tetratheca bauerifolia'', commonly known as heath pink-bells, is a flowering plant in the family Elaeocarpaceae and is endemic to eastern Australia. It is a small compact shrub with pink-mauve flowers. Description ''Tetratheca bauerifolia'' is a small shrub to high with angled or needle-shaped stems covered with bristly, short, curved or curled hairs usually less than long. The leaves are oval to narrow-elliptic shaped, arranged in whorls of 4-6 along the branches, usually long, wide and sessile. The flowers are borne mostly singly on a hooked peduncle, the petals mauve-pink and long with darker, hairless sepals that are long. Flowering occurs from September to November and the fruit is heart-shaped to more or less wedge shaped and long. Taxonomy ''Tetratheca bauerifolia'' was first formally described by Victorian Government Botanist Ferdinand von Mueller Baron Sir Ferdinand Jacob Heinrich von Mueller, (german: Müller; 30 June 1825 – 10 October 1896) was a G ...
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Tetratheca Aphylla
''Tetratheca aphylla'', also known as the Bungalbin Tetratheca, is a species of flowering plant in the quandong family that is endemic to Australia. Subspecies * ''Tetratheca aphylla'' subsp. ''aphylla'' * ''Tetratheca aphylla'' subsp. ''megacarpa'' Description The species grows as an erect, spreading, leafless shrub to 60 cm in height. The flowers are pink or pink-purple, appearing from September to October. Distribution and habitat The range of the species lies within the Coolgardie and Mallee IBRA bioregions of south-west Western Australia, where it occurs in the Helena Aurora Range, 50 km north-north-east of Koolyanobbing, and 80 km east of Newdegate. The plants grow in pockets of skeletal soil among banded iron formations, rock outcrops and debris, in shrubland. Conservation The species is listed as Vulnerable under Australia's EPBC Act. The main potential threats are mining activities, inappropriate fire regimes and roadworks. References aph ...
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Tetratheca Gunnii
''Tetratheca gunnii'', commonly known as shy susan, is a perennial herb in the family Elaeocarpaceae. It is endemic to the foothills of the Dazzler Range near Beaconsfield in Tasmania. It grows to between 15 and 50 cm high and has leaves that are up to 5 mm long. The flowers, which are pale lilac to deep pink, appear in spring. ''Tetratheca gunnii'' relies on native bees for pollination. Associated species include ''Eucalyptus amygdalina'', ''Eucalyptus ovata ''Eucalyptus ovata'', commonly known as swamp gum or black gum, is a small to medium-sized tree species that is endemic to south-eastern Australia. It has mostly smooth bark, glossy green, lance-shaped to egg-shaped adult leaves, green flower bu ...'', '' Euryomyrtus ramosissima'', '' Epacris virgata'' and '' Hibbertia riparia''. References {{Taxonbar, from=Q16993027 gunnii Oxalidales of Australia Flora of Tasmania ...
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Tetratheca Glandulosa
''Tetratheca glandulosa'' is a spreading shrub in the family Elaeocarpaceae. It is endemic to New South Wales. Description Its leaves are alternate or opposite or rarely in whorls of three or four. They are linear and 3–20 mm long by 1–2 mm wide with revolute margins and stiff, occasionally gland-tipped hairs which give a toothed appearance. The midrib on lower surface is often glandular/hairy and the leaves are sometimes sessile. The flowers are solitary (rarely paired) on peduncles which are 3–10 mm long. They can be hairy with dark red, gland-tipped and tubercle-based hairs. The sepals are 2–3 mm long and persist with the fruit. The deep lilac-pink petals are 4.5–10.5 mm long and also persist in the fruit. The ovary is hairy and there are two ovules. The fruit is 3–7 mm long and the seeds are greater than 3 mm long. It usually flowers from July to November. It grows in sandy or rocky heath or scrub, from Mangrove Mountain to the Blue Mountains (New South Wales) ...
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Tetratheca Fasciculata
''Tetratheca fasciculata'', also known as Cronin's Tetratheca, is an extinct species of plant in the quandong family that was endemic to Australia. Description The species grew as a compact shrub less than 20 cm in height. The flowers were pink. Distribution and habitat The plant was collected only twice, in the late 19th century, from the Wagin area about 230 km south-east of Perth, in the Avon Wheatbelt IBRA bioregion of south-west 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 .... References fasciculata Eudicots of Western Australia Oxalidales of Australia Taxa named by Joy Thompson Plants described in 1976 {{Australia-rosid-stub ...
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Tetratheca Harperi
''Tetratheca harperi'', also known as Jackson Tetratheca, is a species of flowering plant in the quandong family that is endemic to Australia. Description The species grows as a multi-stemmed shrub to 20–40 cm in height. The tiny leaves are 2 mm long, and mature branches are leafless. The flowers each have four or five pink petals 12 mm long and 6 mm wide, and appear from July to November. Distribution and habitat The species is only known from Mount Jackson, north of the town of Southern Cross, within the Coolgardie IBRA bioregion of south-west Western Australia. The plants grow on stony loam soils in crevices on rocky outcrops. Conservation The species has been listed as Vulnerable under Australia's EPBC Act. Threats include mineral exploration and mining, invasive weeds, inappropriate fire regimes and grazing by feral goat The feral goat is the domestic goat (''Capra aegagrus hircus'') when it has become established in the wild. Feral goats o ...
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Tetratheca Elliptica
''Tetratheca setigera'' is a species of plant in the quandong family that is endemic to Australia. Description The species grows as an erect or diffuse shrub to 20–80 cm in height. The pink-purple flowers appear from August to December. Distribution and habitat The species occurs within the Esperance Plains, Jarrah Forest, Swan Coastal Plain and Warren IBRA bioregions of south-west 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 .... The plants grow on slopes, flats and swampy areas with sandy and gravelly soils. References setigera Eudicots of Western Australia Oxalidales of Australia Taxa named by Stephan Endlicher Plants described in 1837 {{Australia-rosid-stub ...
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Tetratheca Ciliata
''Tetratheca ciliata'', commonly known as pink bells, is a small shrub in the family Elaeocarpaceae. It is endemic to southern Australia. It is a small shrub which may grow up to 100 cm high. Deep lilac pink flowers appear between October and November in the species' native range. The species was first formally described by English botanist John Lindley in 1838 in '' Three Expeditions into the interior of Eastern Australia''. It occurs in Western Australia, South Australia, Tasmania, Victoria and New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es .... References ciliata Oxalidales of Australia Flora of New South Wales Flora of South Australia Flora of Tasmania Flora of Victoria (Australia) Flora of Western Australia {{Oxalidales-stub ...
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Tetratheca Hispidissima
''Tetratheca hispidissima'' is an erect spreading or straggling shrub in the family Elaeocarpaceae. It is endemic to Western Australia. It grows from 0.3 m to 0.8 m high, on sandy, clayey and gravel soils on river flats and on lateritic ridges. Its pink to purple flowers may be seen from September to December. It was first described by Joachim Steetz Joachim Steetz (12 November 1804 – 24 March 1862) was a German botanist. His herbarium, comprising more than 5000 specimens from over 160 collectors and 30 countries was purchased in 1863 by Victorian Government Botanist Ferdinand von Muelle ... in 1845. There are no synonyms. The specific epithet, ''hispidissima'', is a superlative derived from the Latin, ''hispidus'', meaning "hispid", "covered with coarse rigid erect hairs or bristles harsh to the touch", and thus describes the plant as being "most hairy". References {{Taxonbar, from=Q18009919 hispidissima Oxalidales of Australia Flora of Western Australia Taxa ...
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Tetratheca Decora
''Tetratheca decora'', also known as black-eyed susan, is a species of plant in the quandong family that is endemic to Australia. Description The species grows as a small, erect shrub to 30–40 cm in height. The deep lilac-pink flowers have petals 6–15 mm long, appearing mainly from September to November. Distribution and habitat The plants have a scattered distribution across central eastern New South Wales from the Warrumbungles to the Nowra area, occurring in heath and dry sclerophyll forest on sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) ... substrates. References decora Flora of New South Wales Oxalidales of Australia Taxa named by Joy Thompson Plants described in 1976 {{Australia-rosid-stub ...
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