Phyllocladus trichomanoides

Phyllocladus trichomanoides, commonly known as the tānekaha or celery pine, is a coniferous tree endemic to New Zealand.

Tanekaha
Conservation status
Least Concern  (IUCN 2.3)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Gymnospermae
Division:	Pinophyta
Class:	Pinopsida
Order:	Araucariales
Family:	Podocarpaceae
Genus:	Phyllocladus
Species:	P. trichomanoides
Binomial name
Phyllocladus trichomanoides D.Don

Description

Tānekaha is a medium-sized forest tree growing up to 25 metres (82 feet) in height and 1 m trunk diameter.^[2] The main structural shoots are green-skinned for 2–3 years, then turn brown as the bark thickens. The leaves are sparse, tiny, scale-like, 2–3 mm long, and only green (photosynthetic) for a short time, soon turning brown.

Most photosynthesis is performed by phylloclades, highly modified, leaf-like short shoots; these are arranged alternately, 10–15 on a shoot, the individual phylloclades rhombic, 1.5–2–5 cm long. The seed cones are berry-like, with a fleshy white aril surrounding but not fully enclosing the single seed.

Distribution

In the North Island, this species is found in lowland forests from Te Paki to 40°S.^[2] In the South Island, this species is found in northern Marlborough and Nelson to 41°30'S.^[2]

Pests and diseases

This species plays host to the New Zealand endemic beetle Agapanthida morosa.^[3]

Economic uses

Like the kauri, tānekaha shed their lower branches, producing smooth straight trunks and knot-free timber which is sought after for its strength.

The bark is rich in tannin, from which Māori extracted a red dye.^{[citation needed]}