Coprosma rhamnoides A.Cunn.

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Coprosma rhamnoides (also known as twiggy coprosma or red-currant coprosma) is an endemic shrub in New Zealand. It forms a small shrub up to 2 m tall. The leaves are very small, simple and variable in shape. The inconspicuous flowers are unisexual and believed to be wind pollinated.It is widespread in occurrence and can be the dominant small leaved divaricating shrub in some locations

Description

It is a dense shrub. which can sprawl over rocks. It is typically less than 1 metre tall. with thin, divaricating branches. This gives a distinct twiggy appearance which accounts for the common name ‘twiggy coprosma’.

The leaves are leathery and matte with a glabrous lamina which appears reticulate on the underside where it may also be pubescent.

The opposite leaves are often in bundles with very short petioles and are 7 – 12 mm long.

The leaves are variable in size and shape. This can depend on maturity. The common broad shape leaves are orbicular. The leaves narrow quickly into the pubescent petiole.  The hairs continue onto the lower area of the leaf ).

The almost microscopic stipules at the base of the leaves are also pubescent with a sharp denticle at their apices.

The branches are small, about 10mm in diameter  and numerous, which makes the shrub dense. The branches are rigid and growing in many directions which creates the twiggy appearance.  The bark is a reddish brown colour, and when scratched, it exposes a yellow/green colour.

The flowers are small and borne in the axils. Both male and female corollas comprise four lobed petals. The male petal is 2.7mm, whereas the female is 1.3mm long  and are more narrow and funnel shaped. The male has four stamens.

The fruit are fleshy, globose berries, of a crimson or ruby red colour distributed solitarily along the branchlets.

Coprosma rhamnoides - Wikipedia

 

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