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Zieria oreocena facts for kids

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Grampians zieria
Zieria oreocena.jpg
Zieria oreocena growing at the northern end of the Grampians National Park
Scientific classification

Zieria oreocena, commonly known as Grampians zieria, is a plant in the citrus family Rutaceae and is endemic to Victoria. It is a spindly shrub with glabrous, three-part, clover-like leaves and clusters of up to thirty white flowers with four petals and four stamens. It is a rare species, only found in the northern Grampians.


Zieria oreocena is a spindly shrub which grows to a height of 3.5 m (10 ft). Its branches are glabrous, dotted with translucent glands and have distinct ridges. The leaves are more or less glabrous and are composed of three lance-shaped leaflets with a petiole 11–36 mm (0.4–1 in) long. The central leaflet is 23–82 mm (0.9–3 in) long, 4–16 mm (0.2–0.6 in) wide. The flowers are arranged in clusters of between 7 and 29 in leaf axils, the clusters shorter than the leaves. The sepals are triangular, 1–2 mm (0.04–0.08 in) long and covered with woolly hairs. The four petals are white, 3.5–6 mm (0.1–0.2 in) long and covered with soft hairs. There are four stamens. Flowering occurs in spring and is followed by fruit which are glabrous capsules containing striped reddish-brown seeds.

Taxonomy and naming

Zieria oreocena was first formally described in 2002 by James Armstrong from a specimen collected near Mount Zero in the Grampians and the description was published in Australian Systematic Botany. The specific epithet is said to be derived from the Greek oreo, 'a mountain' and kenos, 'empty', referring to the area near Mount Zero, where the type specimen was collected. The proper word for 'mountain' in ancient Greek is however oros (ὄρος).

Distribution and habitat

Grampians zieria grows in woodland and shrubland in the northern Grampians.

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