Sophora Molloyi
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''Sophora molloyi'', the Cook Strait kōwhai, Molloy's kōwhai or Stephen's Island kōwhai, one of 8 species of kōwhai native to New Zealand, grows naturally around the
Cook Strait Cook Strait () is a strait that separates the North Island, North and South Islands of New Zealand. The strait connects the Tasman Sea on the northwest with the South Pacific Ocean on the southeast. It is wide at its narrowest point,McLintock, ...
region. It was first described as a species in 2001 and named after Brian Molloy of Landcare Research, who was a researcher and scientist for more than 30 years.


Description

Cook Strait kōwhai forms a small compact bush and can become quite wide but only grows to about head height. It is an early flowering species, normally between April and October. Flowers are yellow and around 3 cm long. Unlike other kōwhai, ''S. molloyi'' retains its leaves all year round, and does not have a divaricating juvenile stage when grown from seed.


Conservation

Using the
New Zealand Threat Classification System The New Zealand Threat Classification System is used by the Department of Conservation to assess conservation priorities of species in New Zealand. The system was developed because the IUCN Red List, a similar conservation status system, had s ...
, ''S. molloyi'' was rated in 2012 as being "At Risk – Naturally Uncommon". Cook Strait kōwhai was previously rated in 2004 as being at risk due to its restricted range. This classification remains as of 2017.


Cultivation

In horticulture it is sold as the two varieties 'Dragons Gold' and 'Early Gold', which are popular garden plants. * The cultivar 'Dragons Gold' (or 'Dragon's Gold') was selected by Terry Hatch of Joy Plants and came from material sourced from Stephens Island in the 1950s. The original plant the cultivar was grown from eventually grew to 6 metres in height, although 2 m is more usual within the first 10 years. It is an excellent plant for covering difficult banks and places with poor soil and has clusters of bright yellow flowers. The naming of this cultivar commemorates Stephens Island's numerous
tuatara The tuatara (''Sphenodon punctatus'') is a species of reptile endemic to New Zealand. Despite its close resemblance to lizards, it is actually the only extant member of a distinct lineage, the previously highly diverse order Rhynchocephal ...
, likening it to an 'isle of dragons'. * The cultivar 'Early Gold' is an earlier selection made by the late John Goldie, and was also sourced from seedlings raised from Stephens Island. It is similar to 'Dragons Gold' but has paler, lemony yellow-coloured flowers. This cultivar was under Plant Variety Rights for some time, but these have now expired. ''Sophora molloyi'' makes a good container plant due to its smaller size, because it retains its leaves year-round and flowers over winter when few other plants are flowering.


References

{{Taxonbar, from=Q7563133 molloyi Trees of New Zealand Taxa named by Peter James de Lange Taxa named by Peter Brian Heenan