Zieria baeuerlenii

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Bomaderry zieria
Zieria baeuerlenii.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Zieria
Species:
Z. baeuerlenii
Binomial name
Zieria baeuerlenii
J.A.Armstr. [1]

Zieria baeuerlenii, commonly known as the Bomaderry zieria, is a plant in the citrus family Rutaceae and is endemic to a small area on the south coast of New South Wales. It is a sometimes straggly shrub with velvety leaves composed of three leaflets. In late autumn to spring there are clusters of small white to pinkish flowers with four petals and which appear to be unable to produce seeds.

Contents

Description

Zieria baeuerlenii is an open, spreading shrub which usually grows to a height of 0.8 m (3 ft) and has a velvety covering on its younger branches. The leaves are arranged in opposite pairs and are composed of three leaflets with the central one heart-shaped with the narrower end towards the base, 6–12 mm (0.2–0.5 in) long and 4–9 mm (0.2–0.4 in) wide with a stalk 1.5–2.5 mm (0.06–0.1 in) long. The other two leaflets are similar in shape but slightly smaller. Each leaflet has a velvety covering of hairs and has its edges rolled under. [2] [3] [4]

Masses of small pinkish-white flowers about 8 mm (0.3 in) in diameter are arranged in clusters of between three and seven in leaf axils. The clusters have a stalk up to 10 mm (0.4 in) and are longer than the leaves. Four large green, leaf-like bracts surround each flower cluster. The sepals are triangular, about 2 mm (0.08 in) long and covered with velvety hairs. The four petals are broad lance-shaped, about 3 mm (0.1 in) long, overlap each other and have a layer of hairs on the outside. Flowering occurs from September to October but fruit have never been observed and evidence suggests that the species has lost its ability to reproduce sexually. [2] [3] [4]

Taxonomy and naming

Bomaderry zieria was first formally described in 2002 by James Andrew Anderson from a specimen collected near Bomaderry Creek. The description was published in Australian Systematic Botany . [1] [5] The specific epithet (baeuerlenii) honours the German-born plant collector Wilhelm Baeuerlen who moved to Australia in about 1883, lived in the Shoalhaven area and collected for Ferdinand von Mueller and Joseph Maiden. [6] [7]

Distribution and habitat

Zieria baeuerlenii is only known from an area of 0.5 km2 (100 acres) near Bomaderry. In grows in soil derived from sandstone in forest, woodland and scrub. [2] [3] [4]

Ecology

Fruit or seed of Bomaderry Zieria has not been observed and it is thought that the species has lost the ability to reproduce sexually and probably reproduces from suckers. It has the ability to regenerate after bushfire. [3] [4]

Conservation

Bomaderry 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. Some of the threats to the species are habitat damage due to illegal activities, weed invasion, grazing by rabbits and frequent fires. [3] [4]

Related Research Articles

Zieria lasiocaulis, commonly known as Willi Willi zieria, is a rare species of flowering plant in the citrus family Rutaceae and is endemic to New South Wales. It is a tall shrub or small tree with three-part leaves and inconspicuous white flowers, found only at high altitudes in areas with a high rainfall.

<i>Zieria citriodora</i> Species of plant

Zieria citriodora, commonly known as lemon-scented zieria, is a species of flowering plant in the citrus family Rutaceae and is endemic to a small area near the border between New South Wales and Victoria. It is a small shrub with lemon-scented leaves and small, pale pink or white flowers which appear from late winter to summer.

<i>Zieria laevigata</i> Species of flowering plant

Zieria laevigata commonly known as smooth zieria, smooth-leaved zieria or twiggy midge bush is a species of flowering plant in the citrus family Rutaceae and is endemic to eastern Australia. It is an erect shrub with smooth, three-part leaves and pale pink or white flowers with four petals and four stamens. It grows in poor soil on rocky outcrops and flowers from late winter to spring.

<i>Zieria collina</i> Species of flowering plant

Zieria collina commonly known as hill zieria, is a plant in the citrus family, Rutaceae and is endemic to a small area in south-east Queensland. It is a large, spreading shrub with leaves composed of three leaflets, and small flowers with four white petals.

<i>Zieria adenodonta</i> Species of flowering plant

Zieria adenodonta, commonly known as the Wollumbin zieria, is a plant in the citrus family Rutaceae and is endemic to eastern Australia. It is a dense, bushy shrub with leaves composed of three leaflets which are warty on the upper surface. In winter and early spring it has groups of five to eight flowers, each with four white petals, the groups usually shorter than the leaves.

<i>Zieria tuberculata</i> Species of flowering plant

Zieria tuberculata, commonly known as warty zieria, is a plant in the citrus family Rutaceae and is endemic to a small area on the south coast of New South Wales. It is a shrub with warty, hairy branches and leaves and large groups of creamy-white, four-petalled flowers in late winter to spring.

<i>Zieria montana</i> Species of shrub

Zieria montana is a plant in the citrus family Rutaceae and is endemic to a small area in south-east Queensland. It is a shrub with rough, ridged branches, leaves composed of three leaflets and groups of white, four-petalled flowers in spring and early summer.

<i>Zieria minutiflora</i> Species of flowering plant

Zieria minutiflora, commonly known as twiggy zieria, is a plant in the citrus family Rutaceae and is endemic to eastern Australia. It is a small, erect, twiggy shrub with leaves composed of three leaflets, and clusters of small white flowers with four petals and four stamens. It usually grows as an understorey shrub in eucalypt woodland.

<i>Zieria buxijugum</i> Species of flowering plant

Zieria buxijugum, commonly known as the Box Range zieria, is a plant in the citrus family Rutaceae and is endemic to a small area on the south coast of New South Wales. It is a dense, rounded shrub with strongly scented, velvety, clover-like leaves composed of three leaflets. In early spring there are large clusters of small white flowers with four petals near the ends of the branches.

<i>Zieria caducibracteata</i> Species of shrub

Zieria caducibracteata is a plant in the citrus family Rutaceae and is endemic to New South Wales. It is a tall shrub or small tree with leaves composed of three lance-shaped leaflets. In early spring there are clusters of small white flowers with four petals near the ends of the branches.

<i>Zieria covenyi</i> Species of flowering plant

Zieria covenyi, commonly known as the Coveny's zieria, is a plant in the citrus family Rutaceae and is endemic to a small area in the Blue Mountains of New South Wales. It is an erect shrub which multiples asexually from root suckers and has three-part, clover-like leaves and clusters of white to pink flowers with four petals and four stamens.

<i>Zieria cytisoides</i> Species of flowering plant

Zieria cytisoides, commonly known as the downy zieria, is a plant in the citrus family Rutaceae and is endemic to eastern Australia. It is a bushy shrub with three-part, clover-like leaves and small clusters of pale to deep pink flowers with four petals and four stamens.

<i>Zieria floydii</i> Species of flowering plant

Zieria floydii, commonly known as the Floyd's zieria, is a plant in the citrus family Rutaceae and is endemic to the New England Tableland in New South Wales. It is an erect shrub with warty, hairy branches, three-part, clover-like leaves and clusters of creamy-white flowers with four petals and four stamens.

<i>Zieria formosa</i> Species of flowering plant

Zieria formosa, commonly known as the shapely zieria, is a plant in the citrus family Rutaceae and is endemic to a small area on the south coast of New South Wales. It is a dense, rounded shrub with velvety, clover-like leaves composed of three leaflets. In spring there are clusters of small, pale pink flowers with four petals near the ends of the branches. It is similar to the Box Range zieria which has a similar distribution, but has wider leaflets and an appendage on its anthers.

Zieria hindii, commonly known as the Hind's zieria, is a plant in the citrus family Rutaceae and is endemic to a small area in north-eastern New South Wales. It is an erect, slender shrub with warty branches, three-part, clover-like leaves, and clusters of small white flowers with four petals and four stamens. It is only known from the Nightcap Range.

<i>Zieria ingramii</i> Species of flowering plant

Zieria ingramii, commonly known as Keith's zieria, is a plant in the citrus family Rutaceae and is endemic to a small area in central New South Wales. It is a slender, spindly, aromatic shrub with three-part, clover-like leaves and clusters of about seven white to pale pink flowers with four petals and four stamens. The species is only known from two state forests near Dubbo.

<i>Zieria littoralis</i> Species of flowering plant

Zieria littoralis, commonly known as dwarf zieria is a plant in the citrus family Rutaceae and is endemic to south-eastern Australia. It is an erect or spreading shrub with velvety, three-part, clover-like leaves and clusters of up to thirty white or pale pink flowers with four petals and four stamens. It grows on exposed, rocky coastal headlands.

<i>Zieria murphyi</i> Species of shrub

Zieria murphyi, commonly known as Murphy's zieria, is a plant in the citrus family Rutaceae and endemic to New South Wales. It is a slender shrub with simple, or three-part leaves and between three and nine white to pale pink flowers with four petals and four stamens arranged in the leaf axils. It usually grows in sheltered places in open forest, often at the base of cliffs.

<i>Zieria parrisiae</i> Species of plant

Zieria parrisiae, commonly known as Parris' zieria, is a plant in the citrus family Rutaceae and is endemic to a small area near Pambula on the south coast of New South Wales. It is a bushy shrub with warty, clover-like leaves composed of three leaflets and in spring there are clusters of up to 24 white to pale yellow flowers with four petals, near the ends of the branches.

Zieria tenuis is a plant in the citrus family Rutaceae and endemic to the northern inland of Queensland. It is an open, straggly shrub with wiry branches, three-part leaves and groups of nine to twelve flowers with four white or pinkish petals and four stamens. It is similar to Z. collina but has larger petals, and to Z. cytisoides which has different leaf venation and differently shaped leaflets.

References

  1. 1 2 "Zieria baeuerlenii". APNI. Retrieved 22 December 2016.
  2. 1 2 3 Armstrong, James Andrew; Harden, Gwen. "Zieria baeuerlenii". Royal Botanic Garden Sydney: plantnet. Retrieved 22 December 2016.
  3. 1 2 3 4 5 "Bombaderry Zieria - profile". Government of New South Wales Department of the Environment and Heritage. Retrieved 6 November 2016.
  4. 1 2 3 4 5 "National recovery plan for the Bombaderry Zieria Zieria baeuerlenii" (PDF). Department of Environment, Climate Change and Water (NSW), 2010. Retrieved 22 December 2016.
  5. ↑ Armstrong, Jim A. (2002). "The genus Zieria (Rutaceae): a systematic and evolutionary study". Australian Systematic Botany. 15 (3): 277–463. doi:10.1071/SB00040.
  6. ↑ Quattrocchi, Umberto (1999). CRC world dictionary of plant names : common names, scientific names, eponyms, synonyms, and etymology. Boca Raton, Florida: CRC Press. p. 619. ISBN   0849326737.
  7. ↑ "Baeuerlen, William (1840 - 1917)". Australian National Botanic Garden. Retrieved 22 December 2016.
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