Species

Leionema nudum

Etymology

nudum: bare

Common Name(s)

Mairehau

Current Conservation Status

2012 - Not Threatened

Conservation status of New Zealand indigenous vascular plants, 2012
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2012 using the New Zealand Threat Classification System (NZTCS). This report includes a statistical summary and brief notes on changes since 2009 and replaces all previous NZTCS lists for vascular plants. Authors: Peter J. de Lange, Jeremy R. Rolfe, Paul D. Champion, Shannel P. Courtney, Peter B. Heenan, John W. Barkla, Ewen K. Cameron, David A. Norton and Rodney A. Hitchmough. File size: 792KB

Previous Conservation Status

2009 - Not Threatened
2004 - Not Threatened

Authority

Leionema nudum (Hook.) Paul G. Wilson

Family

Rutaceae

Brief Description

Small bushy shrub with narrow finely notched leaves inhabiting the north of the North Island. Leaves 25-45mm long by 5-10mm wide, blunt, often brownish green, margins with many tiny nicks. Flowers white, with many projecting filaments. Fruit dry.

Flora Category

Vascular - Native

NVS Species Code

LEINUD

The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.

Structural Class

Dicotyledonous Trees & Shrubs

Synonyms

Phebalium nudum Hook.f.

Distribution

Endemic. Confined to the North Island where it is locally distributed from Te Paki south to Pukenui Hill, Kawhia in the west and the northern Kaima Range in the east. Rather uncommon south of Auckland and Thames

Flower Colours

White

Propagation Technique

Can be grown from semi-hardwood cuttings and seed. Cuttings are often hard to strike, and seed can be slow to germinate. Cold sensitive but once established quite hardy. A beautiful shrub which should be more widely grown

Threats

Not Threatened but it is heavily browsed by goats over some parts of its range

Chromosome No.

2n = 32

Endemic Taxon

Yes

Endemic Genus

No

Endemic Family

No

Life Cycle and Dispersal

Drupes are dispersed by ballistic projection and possibly ants (Thorsen et al., 2009).


Where To Buy

Occasionally sold by specialist native plant nurseries.

Cultural Use/Importance

The fragrant leaves when crushed exude an oil which in some people can cause severe burns if the affected skin is then exposed to strong sunlight. Leionema nudum is the only species of the genus found outside Australia.

References and further reading

Thorsen, M. J.; Dickinson, K. J. M.; Seddon, P. J. 2009. Seed dispersal systems in the New Zealand flora. Perspectives in Plant Ecology, Evolution and Systematics 11: 285-309

This page last updated on 31 May 2015