Actinostrobus pyramidalis

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Actinostrobus pyramidalis
Actinostrobus pyramidalis - Flickr - Kevin Thiele.jpg
Actinostrobus pyramidalis Miq. (AM AK366304).jpg
(AM AK366304)
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Pinophyta
Class: Pinopsida
Order: Cupressales
Family: Cupressaceae
Genus: Actinostrobus
Species:
A. pyramidalis
Binomial name
Actinostrobus pyramidalis
Synonyms [2]
  • Callitris actinostrobusF.Muell.
  • Callitris pyramidalis(Miq.) J.E.Piggin & J.J.Bruhl
  • Frenela actinostrobus(F.Muell.) F.Muell.

Actinostrobus pyramidalis, commonly known as swamp cypress, Swan River cypress and King George's cypress pine, [3] is a species of coniferous tree in the Cupressaceae (cypress family). Like the other species in the genus Actinostrobus, it is endemic to southwestern Western Australia.

Swamp cypress is a shrub or small tree, reaching eight metres tall. The leaves are evergreen and scale-like, except on young seedlings, where they are needle-like. The leaves are arranged in six rows along the twigs, in alternating whorls of three. The male cones are small, 3–6 mm long, and are located at the tips of the twigs. The female cones start out similarly inconspicuous, but mature in 18–20 months to 1–2 cm with a rounded apex.

The cones open and release the seeds only upon drying. They tend to remain closed on the trees for many years, opening only if the branch, or the whole tree, dies. Bushfire kills swamp cypress, but it also causes a great many seeds to be released all at once, resulting in prolific regeneration. In one case, an isolated tree on Jeegarnyeejip Island was killed by fire, and the following winter there were 800 seedlings per square metre within a couple of metres of the original specimen, and about 150 per square metre ten metres away.

The species was first collected from Perth in September 1841 by Johann August Ludwig Preiss, and a description was published by Friedrich Anton Wilhelm Miquel in 1845 as Actinostrobus pyramidalis. A 2010 study of the genera Actinostrobus and Callitris found that all three species of Actinostrobus lay within the current concept of Callitris based on analysis of 42 morphological and anatomical characters, hence Actinostrobus pyramidalis was renamed Callitris pyramidalis. [4]

Related Research Articles

Cypress is a common name for various coniferous trees or shrubs of northern temperate regions that belong to the family Cupressaceae. The word cypress is derived from Old French cipres, which was imported from Latin cypressus, the latinisation of the Greek κυπάρισσος (kyparissos). Cypress trees are a large classification of conifers, encompassing the trees and shrubs from the cypress family (Cupressaceae) and many others with the word cypress in their common name. Many cypress trees have needle-like, evergreen foliage and acorn-like seed cones.

<span class="mw-page-title-main">Cupressaceae</span> Cypress family of conifers

Cupressaceae is a conifer family, the cypress, with worldwide distribution. The family includes 27–30 genera, which include the junipers and redwoods, with about 130–140 species in total. They are monoecious, subdioecious or (rarely) dioecious trees and shrubs up to 116 m (381 ft) tall. The bark of mature trees is commonly orange- to red-brown and of stringy texture, often flaking or peeling in vertical strips, but smooth, scaly or hard and square-cracked in some species.

<i>Callitris</i> Genus of conifers

Callitris is a genus of coniferous trees in the Cupressaceae. There are 16 recognized species in the genus, of which 13 are native to Australia and the other three native to New Caledonia. Traditionally, the most widely used common name is cypress-pine, a name shared by some species of the closely related genus Actinostrobus.

<i>Actinostrobus</i> Genus of conifers

Actinostrobus is a genus of coniferous trees in the Cupressaceae. Common names include cypress, sandplain-cypress and cypress-pine, the last of these shared by the closely related genus Callitris.

<i>Taxodium distichum</i> Species of cypress tree

Taxodium distichum is a deciduous conifer in the family Cupressaceae. It is native to the southeastern United States. Hardy and tough, this tree adapts to a wide range of soil types, whether wet, salty, dry, or swampy. It is noted for the russet-red fall color of its lacy needles.

<i>Widdringtonia</i> Genus of conifers

Widdringtonia is a genus of coniferous trees in the Cupressaceae. The name was Austrian botanist Stephan Endlicher's way of honouring an early expert on the coniferous forests of Spain, Capt. Samuel Edward Widdrington (1787–1856). There are four species, all native to southern Africa, where they are known as cedars or African cypresses.

<i>Diselma</i> Genus of conifers

Diselma archeri is a species of plant of the family Cupressaceae and the sole species in the genus Diselma. It is endemic to the alpine regions of Tasmania's southwest and Central Highlands, on the western coast ranges and Lake St. Clair. It is a monotypic genus restricted to high altitude rainforest and moist alpine heathland. Its distribution mirrors very closely that of other endemic Tasmanian conifers Microcachrys tetragona and Pherosphaera hookeriana.

<i>Callitris pancheri</i> Species of conifer

Callitris pancheri is a plant species of the family Cupressaceae. It is endemic to New Caledonia, where it occurs in small, scattered population along rivers. It used to be placed in its own genus Neocallitropsis but molecular phylogenetic analysis indicated that it was nested within Callitris.

<i>Callitris columellaris</i> Species of conifer

Callitris columellaris is a species of coniferous tree in the family Cupressaceae, native to most of Australia. Common names include white cypress, white cypress-pine, Murray River cypress-pine, and northern cypress-pine. Callitris columellaris has become naturalised in Hawaii and in southern Florida.

Actinostrobus acuminatus, commonly known as dwarf cypress, creeping pine or Moore cypress pine, is a species of coniferous tree in the Cupressaceae. Like the other species in the genus Actinostrobus, it is endemic to southwestern Western Australia, where it can be found along the shorelines of rivers. The Mount Henry Peninsula is an example of the environment in which this cypress is found. It shares the common name dwarf cypress with several other plants, and shares the name creeping pine with others.

<i>Cupressus macnabiana</i> Species of conifer

Cupressus macnabiana is a species of cypress in western North America.

<i>Actinostrobus arenarius</i> Species of conifer

Actinostrobus arenarius is a species of conifer in the cypress family, Cupressaceae. Its common names include sandplain cypress, Bruce cypress, Bruce cypress-pine, and tamin. It is endemic to Western Australia.

<i>Callitris baileyi</i> Species of conifer

Callitris baileyi is a species of conifer in the family Cupressaceae. It is found only in Australia, more specifically Southeast Queensland. Its common English name is Bailey's cypress-pine. The name is dedicated to Australian botanist Frederick Manson Bailey, who was the first to collect specimens of this tree. Bailey's name is closely associated with much of the flora of Queensland and their elucidation in Southeastern Queensland. Over the past few decades the conifer has been severely threatened by habitat loss Fruiting for the species has been recorded year-round.

<i>Callitris endlicheri</i> Species of conifer

Callitris endlicheri, commonly known as the black cypress pine, is a species of conifer in the family Cupressaceae. It is found only in Australia, occurring in Queensland, New South Wales, the Australian Capital Territory, and Victoria.

<i>Callitris monticola</i> Species of conifer

Callitris monticola, commonly known as the steelhead or dwarf cypress, is a species of conifer in the family Cupressaceae. It is found only in Australia, occurring in the states of Queensland and New South Wales and is considered vulnerable due to its restricted distribution.

<i>Callitris oblonga</i> Species of conifer

Callitris oblonga, also known as the South Esk pine, pygmy cypress pine, pigmy cypress pine, river pine, or Tasmanian cypress pine, is a species of conifer in the family Cupressaceae. It is endemic to Australia, where it is native to New South Wales and Tasmania, with one subspecies introduced in Victoria. It is considered vulnerable and faces a number of threats including land clearing, habitat degradation, and damage from or competition with invasive species.

<i>Callitris preissii</i> Species of plant

Callitris preissii is a species of conifer in the family Cupressaceae, endemic to Rottnest Island, Australia. Common names include Rottnest Island pine, Murray pine, maroong, southern cypress pine, or slender cypress pine. The Noongar peoples know the tree as marro.

<i>Callitris rhomboidea</i> Species of plant

Callitris rhomboidea, commonly known as the Oyster Bay pine, Tasmanian cypress pine, Port Jackson pine, Illawarra mountain pine, or dune cypress pine, is a species of conifer in the family Cupressaceae. It is native to Australia, occurring in South Australia, Queensland, New South Wales, Victoria and Tasmania. It has become naturalized near Auckland, New Zealand and can be found on the island of Taillefer Rocks in Tasmania.

Callitris roei, or Roe's cypress-pine, is a species of Callitris native to Australia, where it is endemic to southwestern Western Australia from Moora south to Albany and east to Cape Arid National Park.

<i>Callitris verrucosa</i> Species of plant

Callitris verrucosa, also known as the mallee pine, is a species of conifer in the family Cupressaceae. It is found only in Australia. The plant has a green/grey colour, rigid branches and can reach a height of 8 metres (26 ft). It has a slow grow rate.

References

  1. Thomas, P. (2013). "Actinostrobus pyramidalis". IUCN Red List of Threatened Species . 2013: e.T34071A2842866. doi: 10.2305/IUCN.UK.2013-1.RLTS.T34071A2842866.en .
  2. The Plant List: A Working List of All Plant Species , retrieved 8 December 2015
  3. Eckenwalder, J.E. 2009. Conifers of the World: The Complete Reference. Timber Press. p. 124
  4. Piggin, J., and Bruhl, J.J. (2010). Phylogeny reconstruction of Callitris Vent. (Cupressaceae) and its allies leads to inclusion of Actinostrobus within Callitris. Australian Systematic Botany 23: 69-93.