Bursaria occidentalis

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Bursaria occidentalis
Bursaria occidentalis - Flickr - Kevin Thiele.jpg
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Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Apiales
Family: Pittosporaceae
Genus: Bursaria
Species:
B. occidentalis
Binomial name
Bursaria occidentalis

Bursaria occidentalis is a species of flowering plant in the family Pittosporaceae and is endemic to Western Australia. It is a spiny tree or shrub with egg-shaped adult leaves, flowers with relatively small, hairy sepals and five spreading creamy-white petals, and inflated capsules.

Contents

Description

Bursaria occidentalis is a tree that typically grows to a height of 8 m (26 ft), sometimes a shrub to 1.2 m (3 ft 11 in), and usually only has spiny branches when young. The adult leaves are egg-shaped with the narrower end towards the base, hairy on the lower surface, 30–70 mm (1.2–2.8 in) long and 5–10 mm (0.20–0.39 in) wide on a petiole 3–8 mm (0.12–0.31 in) long. The plants have both andromonoecious and bisexual flowers borne in groups on the ends of branchlets, each flower on a pedicel 3–6 mm (0.12–0.24 in) long. The sepals are hairy, less than 2 mm (0.079 in) long and spread from their bases and the petals are creamy-white, 5–6 mm (0.20–0.24 in) long and also spread from their bases. Flowering occurs from August to December and the fruit is an inflated capsule 10–11 mm (0.39–0.43 in) long and wide containing winged, brown seeds. [3] [4]

Taxonomy

Bursaria occidentalis was first formally described in 1978 by Eleanor Marion Bennett in the journal Nuytsia from specimens she collected near Shark Bay in 1975. [5] [6]

Distribution and habitat

This bursaria grows in mallee woodland between Shark Bay, Dongara and Menzies in the Avon Wheatbelt, Coolgardie, Geraldton Sandplains, Murchison and Yalgoo biogeographic regions of Western Australia. In some places it may be the only tree species. [3] [4]

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<span class="mw-page-title-main">Pittosporaceae</span> Family of flowering plants

Pittosporaceae is a family of flowering plants that consists of 200–240 species of trees, shrubs, and lianas in 9 genera. Habitats range from tropical to temperate climates of the Afrotropical, Indomalayan, Oceanian, and Australasian realms. The type genus is Pittosporum Banks ex Gaertn.

<i>Bursaria</i> Genus of flowering plants

Bursaria is a genus of eight species of flowering plants in the family Pittosporaceae and is endemic to Australia. They are shrubs or slender trees, often with spiny branches and have simple leaves, relatively small flowers with five sepals, five petals and five stamens, and fruit that is a flattened, thin-walled capsule.

<i>Marianthus</i> Genus of flowering plants

Marianthus is a genus of flowering plants in the family Pittosporaceae and is endemic to Australia. Plants in the genus Marianthus are shrubs with twining branches, simple leaves arranged alternately along the stems. The flowers are pendent, arranged singly or in small groups in upper leaf axils or on the ends of branches with small bracts and bracteoles at the base, but that fall as the flowers open. The sepals are free from each other, and the petals are also sometimes free from each, otherwise joined at the base, forming a tube with spreading lobes. Plants in this genus were previously included in Billardiera, but have a stalked ovary and a long, usually curved style. The fruit is a dehiscent capsule containing many seeds.

<i>Commersonia borealis</i> Species of flowering plant

Commersonia borealis is a species of flowering plant in the family Malvaceae and is endemic to the southwest of Western Australia. It is a low growing, spreading shrub with egg-shaped to oblong leaves, and white, yellow and cream-coloured flowers.

<i>Beaufortia bracteosa</i> Species of flowering plant

Beaufortia bracteosa is a plant in the myrtle family, Myrtaceae and is endemic to the southwest of Western Australia. It is a shrub growing to a height of about 1 m (3 ft) with red to maroon flowers and woody fruit.

<i>Verticordia huegelii <span style="font-style:normal;">var.</span> huegelii</i> Variety of flowering plant

Verticordia huegelii var. huegelii, commonly known as variegated featherflower, is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is an upright, slender or bushy shrub, with creamish-white flowers turning pink or reddish maroon as they age, giving the plant a variegated appearance. It is similar to Verticordia huegelii var. decumbens but is more upright than that variety and lacks a lignotuber.

<i>Verticordia huegelii <span style="font-style:normal;">var.</span> decumbens</i> Variety of flowering plant

Verticordia huegelii var. decumbens, commonly known as variegated featherflower, is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is an almost prostrate shrub, with creamish-lemon coloured flowers turning pink then red as they age, giving the plant a variegated appearance. It is similar to Verticordia huegelii var. huegelii but has a lignotuber and a lower growth habit.

<i>Leptospermum spinescens</i> Species of shrub

Leptospermum spinescens, commonly known as the spiny tea tree, is a species of spiny shrub that is endemic to Western Australia. It has thick, egg-shaped to elliptical leaves on a short petiole, white or greenish cream flowers, and fruit that remain in the plant for years after reaching maturity.

<i>Billardiera fusiformis</i> Species of flowering plant

Billardiera fusiformis, commonly known as Australian bluebell, is a species of flowering plant in the family Pittosporaceae and is endemic to the south-west of Western Australia. It is a sturdy, shrubby climber that has linear to narrowly elliptic leaves and blue, white or pink, nodding flowers arranged singly or in groups of up to four.

Bursaria calcicola is a species of flowering plant in the family Pittosporaceae and is endemic to a restricted area near Wombeyan Caves in New South Wales. It is a spiny, hairy, erect or sprawling shrub with clustered, narrowly elliptic to egg-shaped leaves, white flowers with triangular sepals, cream-coloured petals and flattened fruit.

Bursaria cayzerae is a species of flowering plant in the family Pittosporaceae and is endemic to the North Coast of New South Wales. It is a sparsely-branched shrub with spiny branches, narrowly elliptic leaves, flowers with five glabrous sepals, spreading white petals and five stamens, and flattened fruit.

<i>Bursaria incana</i> Species of plant

Bursaria incana, commonly known as prickly pine, box thorn, native box, native olive and mock orange, is a species of flowering plant in the family Pittosporaceae and is endemic to northern Australia. It is a tall shrub or small, sparse tree with softly-hairy foliage, heart-shaped leaves with the narrower end towards the base, leafy groups of white flowers with five spreading sepals, five spreading petals, and flattened fruit.

<i>Bursaria longisepala</i> Species of plant

Bursaria longisepala is a species of flowering plant in the family Pittosporaceae and is endemic to New South Wales. It is a spiny, sprawling shrub with narrowly elliptic leaves clustered around spiny side-shoots, flowers with relatively large sepals, five spreading white petals and five stamens, and concave fruit.

<i>Bursaria reevesii</i> Species of plant

Bursaria reevesii is a species of flowering plant in the family Pittosporaceae and is endemic to a few places near Marlborough in Queensland. It is an erect or sprawling shrub with spiny side-shoots, egg-shaped adult leaves with the narrower end towards the base, flowers with five white petals, and rounded fruit.

<i>Bursaria tenuifolia</i> Species of plant

Bursaria tenuifolia is a species of flowering plant in the family Pittosporaceae and is endemic to north-eastern Queensland. It is a shrub or spindly tree with elliptic to rhombic adult leaves, spiny foliage when young, flowers with five whitish petals, and slightly flattened, papery fruit.

Cryptandra imbricata is a flowering plant in the family Rhamnaceae and is endemic to the southwest of Western Australia. It is a spreading shrub with spiny, interlaced branchlets, narrowly oblong to linear leaves and spike-like clusters of white, tube-shaped flowers.

Cryptandra inconspicua is a flowering plant in the family Rhamnaceae and is endemic to the southwest of Western Australia. It is a small, spreading shrub with narrowly elliptic to egg-shaped leaves and head-like clusters of white, tube-shaped flowers.

Stenanthemum divaricatum is a species of flowering plant in the family Rhamnaceae and is endemic to the southwest of Western Australia. It is a small, often spiny shrub with sparsely hairy young stems, fan-shaped to narrowly egg-shaped leaves and densely, softly-hairy heads of tube-shaped flowers.

Cryptandra monticola is a flowering plant in the family Rhamnaceae and is endemic to the south-west of Western Australia. It is an erect or spreading shrub with linear or narrowly oblong to elliptic leaves and head-like clusters of white, tube-shaped flowers.

<i>Marianthus mollis</i> Shrub of the pittosporum family

Marianthus mollis, commonly known as hairy-fruited billardiera, is a species of flowering plant in the family Pittosporaceae and is endemic to a small region in the southwest of Western Australia. It is an erect, spreading, silky-hairy shrub with sessile, egg-shaped leaves and purplish-blue flowers arranged singly in leaf axils.

References

  1. IUCN SSC Global Tree Specialist Group.; Botanic Gardens Conservation International (BGCI). (2020). "Bursaria occidentalis". IUCN Red List of Threatened Species . 2020: e.T172668775A172926369. doi: 10.2305/IUCN.UK.2020-2.RLTS.T172668775A172926369.en . Retrieved 1 April 2023.
  2. "Bursaria occidentalis". Australian Plant Census. Retrieved 6 November 2021.
  3. 1 2 "Bursaria occidentalis E.M.Benn". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions . Retrieved 1 December 2020.
  4. 1 2 Cayzer, Lindy W. "Bursaria occidentalis E.M.Benn". Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 6 November 2021.
  5. "Bursaria occidentalis". APNI. Retrieved 5 November 2020.
  6. Bennett, Eleanor M. (1978). "New taxa and new combinations in Australian Pittosporaceae". Nuytsia. 2 (4): 194. Retrieved 6 November 2021.