Zieria involucrata

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Zieria involucrata
Zieria involucrata 2.jpg
Zieria involucrata in Yengo National Park
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Zieria
Species:
Z. involucrata
Binomial name
Zieria involucrata
Synonyms

Zieria cytisoides var. involucrata(R.Br. ex Benth.) C.Moore & Betche

Contents

Zieria involucrata is a plant in the citrus family Rutaceae and is endemic to New South Wales. It is a sparse, erect shrub with mostly three-part leaves and groups of up to 21 small white flowers, the groups shorter than the leaves. It mostly occurs in the lower Blue Mountains, but is also known from other areas around Sydney.

Description

Zieria involucrata is a sparse, erect shrub that grows to a height of 1–2 m (3–7 ft) with its branches and leaves densely covered with soft, velvety leaves. The leaves have a petiole 3–10 mm (0.1–0.4 in) long and are mostly composed of three elliptic to lance-shaped leaflets 30–55 mm (1–2 in) long and 6–15 mm (0.2–0.6 in) wide, although some leaves may have only one leaflet. The leaflets are more or less flat, dark green on the upper surface and light greyish-green below. The flowers are white, sometimes with a pink tinge and arranged in groups of between three and 21, the groups mostly shorter than the leaves. Hairy, leaf-like bracts surround the flowers and usually remain on the plant during flowering and are 7–12 mm (0.3–0.5 in) long. The sepals are triangular, 3–4.5 mm (0.1–0.2 in) long and the four petals are about 3–5 mm (0.1–0.2 in) long and slightly hairy. There are four stamens. Flowering occurs from August to October and is followed by fruits that are hairy follicles. [2] [3] [4] [5]

Taxonomy and naming

Zieria involucrata was first formally described in 1863 by George Bentham from an unpublished description by Robert Brown. Bentham's description was published in Flora Australiensis . [1] [3] The specific epithet (involucrata) is derived from the Latin word involucrum meaning "wrapper", "case" or "envelope", [6] referring to the persistent bracts. [5]

Distribution and habitat

This zieria grows in wet forest, mainly in the lower Blue Mountains but has also been recorded from north and west of Sydney. [2] [5] [7]

Conservation

Zieria involucrata is classified as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and as "endangered" under the New South Wales Government Threatened Species Conservation Act 1995. The main threat to the species is inappropriate fire regimes, especially frequent fires. [5] [7]

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 granulata</i> Species of flowering plant

Zieria granulata, commonly known as the Illawarra zieria, hill zieria or hilly zieria, is a plant in the citrus family Rutaceae and is endemic to the Illawarra region of New South Wales. It is a tall, bushy shrub distinguished by the wart-like tubercles that cover the entire plant, its linear leaflets and small white, four-petalled flowers.

<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 aspalathoides</i> Species of flowering plant

Zieria aspalathoides, commonly known as the whorled zieria, heath zieria, hairy zieria or heathy zieria, is a plant in the citrus family Rutaceae and is endemic to eastern Australia. It is a heath-like shrub with leaves that appear to be whorled and with pink flowers in groups of three, each with four petals and four stamens.

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

Zieria adenophora, commonly known as the Araluen Zieria is a plant in the 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.

<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 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 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 furfuracea is a plant in the citrus family Rutaceae and is endemic to eastern Australia. It is a shrub with three-part leaves and groups of large numbers of small white flowers, the groups shorter than the leaves. It grows on the coast and tablelands north from Wyong.

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.

Zieria laxiflora, commonly known as wallum zieria, is a plant in the citrus family Rutaceae and is endemic to eastern Australia. It is an erect shrub with leaves composed of three leaflets, and clusters of about nine white or pale pink flowers with four petals and four stamens. It usually grows is coastal heathland.

<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 obcordata</i> Species of flowering plant

Zieria obcordata, commonly known as obcordate-leafed zieria, is a plant in the citrus family Rutaceae and endemic to New South Wales. It is an aromatic, densely branched, rounded shrub with small, hairy, three-part leaves and up to three white to pale pink flowers with four petals and four stamens arranged in the leaf axils. It occurs in two disjunct populations in the central-west of the state.

<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.

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

Zieria pilosa, commonly known as hairy zieria, is a plant in the citrus family Rutaceae and is endemic to coastal New South Wales. It is a shrub with hairy branches, leaves composed of three leaflets and usually only single white to pale pink flowers in the leaf axils.

Philotheca ericifolia is a species of flowering plant in the family Rutaceae and is endemic to New South Wales. It is a much-branched shrub with glandular-warty branchlets, needle-shaped leaves and white to pink flowers arranged singly or in groups of up to six on the ends of the branchlets.

References

  1. 1 2 "Zieria involucrata". APNI. Retrieved 4 August 2017.
  2. 1 2 Armstrong, James Andrew; Harden, Gwen. "Zieria involucrata". Royal Botanic Gardens, Sydney:plantnet. Retrieved 1 August 2017.
  3. 1 2 Bentham, George (1863). Flora Australiensis (Volume 1). London: Lovell, Reeve & Co. p. 306. Retrieved 4 August 2017.
  4. ↑ Harden, Gwen J., ed. (2002). Flora of New South Wales. Volume 2 (Rev. ed.). Sydney: New South Wales University Press. p. 287. ISBN   0868406090.
  5. 1 2 3 4 "Zieria involucrata R.Br. ex Benth. Recovery Plan" (PDF). Department of Environment and Conservation (NSW). Retrieved 4 August 2017.
  6. ↑ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 703.
  7. 1 2 "Zieria involucrata - profile". New South Wales Government Office of Environment and Heritage. Retrieved 4 August 2017.
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