Phyllocladus aspleniifolius (Labill.) Hook.f.

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Phyllocladus aspleniifolius, commonly known as the celerytop pine, is an endemic gymnosperm of Tasmania, Australia. 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.

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.

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, Atherosperma moschatum, and Eucryphia lucida, 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.

Phyllocladus aspleniifolius - Wikipedia

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