Halocarpus kirkii, or monoao, is a species of conifer in the family Podocarpaceae. It is native and endemic to New Zealand. It was formerly known as Dacrydium kirkii.

Quick Facts Halocarpus kirkii, Conservation status ...

Halocarpus kirkii
Juvenile foliage
Conservation status
Near Threatened  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Gymnospermae
Division:	Pinophyta
Class:	Pinopsida
Order:	Araucariales
Family:	Podocarpaceae
Genus:	Halocarpus
Species:	H. kirkii
Binomial name
Halocarpus kirkii (F.Muell. ex Parl.) Quinn
Synonyms
Dacrydium kirkii Parl.

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This species is named in honour of the botanist Thomas Kirk.^[2][3]

When seen at a distance, it resembles a small kauri in its overall appearance. It can be usually distinguished by its juvenile foliage, which often remains on the lower branches until the tree grows to approximately 10 metres tall. The tree ultimately reaches a height of about 25 metres, with a trunk up to 1 metre thick and grey-brown bark that has a rough, pustular texture. The pale reddish-brown wood is strong and durable.

The leaves of the younger trees and on the lower branches of the adults are narrow and to some extent leathery, up to 4 cm long and 3 mm wide. The adult leaves are thick, scale-like and much smaller; the leaves overlap and lie appressed to the branchlets in 4 rows.

It is not a common tree, sometimes being found in lowland forests to an altitude of 700 metres in the north of the North Island and on Great Barrier Island.^[4]