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| Araluen zieria | |
|---|---|
| |
| Zieria adenophora in the ANBG | |
| Conservation status | |
 Endangered (EPBC Act) | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Rosids |
| Order: | Sapindales |
| Family: | Rutaceae |
| Genus: | Zieria |
| Species: | Z. adenophora |
| Binomial name | |
| Zieria adenophora Blakely | |
Zieria adenophora, commonly known as the Araluen Zieria is a plant in the citrus family Rutaceae and is only found near Araluen in the Southern Tablelands of New South Wales. It is a spreading shrub with small glossy, warty leaves and white or pink four-petalled flowers in spring. It is a rare plant with fewer than one hundred plants known from only one site.
Description
Zieria adenophora is an openly-branched shrub which grows to a height of 0.5–1 m (2–3 ft) and has its branches covered with many small warty tubercles. The leaves are strongly aromatic and are composed of three leaflets, each leaflet wedge-shaped to egg-shaped, about 2.5–4 mm (0.1–0.2 in) long and 2–3 mm (0.08–0.1 in) wide with a stalk about 2 mm (0.08 in) long. Both surfaces of the leaves are warty and mostly glabrous.
The flowers are white or very pale pink and are arranged in leaf axils in groups of one to three. The groups are shorter than the leaves, each flower about 5 mm (0.2 in) in diameter with small, triangular sepals. There are four lance-shaped petals 2–3 mm (0.08–0.1 in) long, with the narrower end towards the base. Flowering occurs in spring and is followed by fruit which are warty capsules about 5 mm (0.2 in) in diameter and divided into four chambers, each containing one or two seeds.
Taxonomy and naming
Zieria adenophora was first formally described in 1941 by William Blakely from a specimen collected near Bells Creek Falls, Araluen. The description was published in Contributions from the New South Wales National Herbarium. The specific epithet (adenophora) is derived from the Ancient Greek word adenos meaning "gland" and the suffix -phor meaning "to bear", "to carry" or "to have".
Distribution and habitat
Araluen Zieria grows on rocky hillsides near granite boulders in shrubland. It is only known from the Araluen district.
Conservation
This zieria is listed as "Endangered" under the New South Wales Threatened Species Conservation Act and under the Commonwealth Government Environment Protection and Biodiversity Conservation Act 1999 (EPBC) Act. In 2001, this zieria was only known from a population of 56 mature plants. Trampling by feral goats causes a serious threat to the survival of this plant but a fence has been constructed to deter grazing animals.
References
- ^ "Zieria adenophora". APNI. Retrieved 6 December 2016.
- ^ Armstrong, James Andrew; Harden, Gwen. "Zieria adenophora". Royal Botanic Garden Sydney: plantnet. Retrieved 6 December 2016.
- ^ "Recovery plan for the Araleun Zieria (Zieria adenophora)" (PDF). New South Wales National Parks and Wildlife Service. Retrieved 6 December 2016.
- ^ "Conservation advice, Zieria adenophora, Araluen zieria" (PDF). Government of Australia, Department of the Environment. Retrieved 6 December 2016.
- ^ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.
- "Recovery Plan for the Araluen Zieria (Zieria adenophora)". New South Wales Government Office of Environment and Heritage. Retrieved 6 December 2016.