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''Phyllocladus aspleniifolius'', commonly known as the celerytop pine, is an endemic gymnosperm of 
''Phyllocladus aspeniifolius'' is endemic to Tasmania and is the most widespread and abundant conifer in Tasmania. Commonly found in wet sclerophyll forest and rainforest, from sea level to 1200m in the west and south west of the state. It will grow in all suitable habitat in Tasmania, and can also be found in smaller populations in the north and east, and as a stunted shrub in the higher altitude areas.
''Phyllocladus aspleniifolius'' is a common constituent of cool temperate rainforest vegetation types in Tasmania. When found with other rainforest species such as ''
It makes an attractive container plant, but is slow growing, and prefers cool, moist, acidic soil indicating it needs constant moisture in containers. Therefore, this species is rare in cultivation, and is limited to botanic gardens and arboreta and a few private gardens.
It has also been used to investigate climate change. ''Phyllocladus aspleniifolius'' grows on a wide range of sites and appears sensitive to climate conditions, therefore its pattern of ring width and wood density are used to research past climate.
Gymnosperm Database: ''Phyllocladus aspleniifolius''
*Photos o
foliagecones
''Phyllocladus aspleniifolius'', commonly known as the celerytop pine, is an endemic gymnosperm of Tasmania
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, image_map = Tasmania in Australia.svg
, map_caption = Location of Tasmania in AustraliaCoordinates:
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, Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
. It is widespread and common in Tasmania, with the most abundance in the western highlands. Its ‘leaves’ appear similar to those of a celery plant, hence the common name.
Description
''Phyllocladus aspeniifolius'' is a large, conical conifer in the family Podocarpaceae. The trunk is erect with horizontal branches. True leaves appear at the seedling stage and are fine and needle-like. Mature leaves are reduced to minute, brown scales. The function of the leaf is taken over by cladodes that look like green diamond shaped leaves, similar to the leaves of a celery plant, hence the common name “celery-top pine”. The cladodes are thick and flattened, 3–8 cm long borne spirally on green stems. The plant may bear male and female cones on the same tree or separate trees in summer. The male cones are cylindrical, 3–5 mm long, with 2-3 together at the end of side branches. Female cones occur in groups of 3-4 in short, stalked clusters at the axils or margins of the cladodes. Mature cones are a distinct fleshy pink to red, with a white aril holding a hard, black, exposed seed.Habitat and distribution
''Phyllocladus aspeniifolius'' is endemic to Tasmania and is the most widespread and abundant conifer in Tasmania. Commonly found in wet sclerophyll forest and rainforest, from sea level to 1200m in the west and south west of the state. It will grow in all suitable habitat in Tasmania, and can also be found in smaller populations in the north and east, and as a stunted shrub in the higher altitude areas.
''Phyllocladus aspleniifolius'' is a common constituent of cool temperate rainforest vegetation types in Tasmania. When found with other rainforest species such as ''Nothofagus cunninghamii
''Nothofagus cunninghamii,'' commonly known as myrtle beech or Tasmanian myrtle, is the dominant species of cool temperate rainforests in Tasmania and Southern Victoria. It has low fire resistance and grows best in partial shade conditions.
It ...
'', ''Atherosperma moschatum'', and ''Eucryphia lucida
''Eucryphia lucida'', the leatherwood, is a species of tree or large shrub endemic to forests of western Tasmania, Australia. An attractive plant used in both horticulture and apiculture, it was promoted by the Tasmanian Branch of the then SGA ...
'', the vegetation type can be defined as rainforest. ''Phyllocladus aspleniifolius'' dominates in rainforests with poorer soils, whereas ''Nothofagus cunninghamii'' dominates rainforests on good soil types.
The largest ''Phyllocladus aspeniifolius'' are found in wet sclerophyll forests with a canopy of ''Eucalyptus spp'', and can be up to 800 years old. They grow on acidic soils derived from dolerite, granite or quartzite, that is well drained and may be on boulder or scree slopes, in high rainfall areas with no marked periods of drought. They are less shade tolerant than their fellow rainforest species, relying on a higher fire frequency for regeneration in these areas and regenerate freely in burnt forests.
Uses
The wood of this species is highly prized by fine furniture makers and wooden boat builders. It grows to form a medium size tree in the forests at middle altitudes. The wood of good sized trees is straight grained and dense, golden brown, and not dissimilar to yew (Taxus). It is considered a high value and speciality species by the timber industry. The wood is hard and strong with little shrinkage, bends and works well, and is very durable. The wood is used for railway sleepers, flooring, ship masts, furniture, and cabinet work.
It makes an attractive container plant, but is slow growing, and prefers cool, moist, acidic soil indicating it needs constant moisture in containers. Therefore, this species is rare in cultivation, and is limited to botanic gardens and arboreta and a few private gardens.
It has also been used to investigate climate change. ''Phyllocladus aspleniifolius'' grows on a wide range of sites and appears sensitive to climate conditions, therefore its pattern of ring width and wood density are used to research past climate.
Threats and conservation
The largest threat to ''Phyllocladus aspleniifolius'' is logging for its high value timber and presence in the wet sclerophyll forests that are subject to clearfell harvesting practices. A large portion of the species is located in protected forests in Tasmania or in forests open to logging with management that allows for the persistence of native trees. The IUCN Red List, therefore lists the species as “Least Concern”, indicating its persistent abundance in Tasmania.References
Gymnosperm Database: ''Phyllocladus aspleniifolius''
*Photos o
foliage
External links
* {{Taxonbar, from=Q4484237 Podocarpaceae Flora of Tasmania Endemic flora of Tasmania Trees of Australia Pinales of Australia Trees of mild maritime climate Least concern flora of Australia Taxa named by Joseph Dalton Hooker