Ricinocarpos undulatus

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Ricinocarpos undulatus
Ricinocarpos undulatus.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Euphorbiaceae
Genus: Ricinocarpos
Species:
R. undulatus
Binomial name
Ricinocarpos undulatus
Synonyms [1]
  • Ricinocarpos glaucus var. undulatus(Lehm.) Baill. isonym
  • Ricinocarpos glaucus var. undulatus(Lehm.) Müll.Arg.
  • Ricinocarpus glaucus var. undulatusMüll.Arg. orth. var.
  • Ricinocarpus undulatusLehm. orth. var.

Ricinocarpos undulatus, commonly known as wedding bush, [2] is a species of flowering plant in the family Euphorbiaceae and is endemic to the south-west of Western Australia. It is an erect, monoecious or dioecious shrub with linear leaves, and white flowers in a umbel with either a single male or female flower, 2 to 5 male flowers, or a single female flower surrounded by up to 3 male flowers.

Contents

Description

Ricinocarpos undulatus is an erect, monoecious or dioecious spindly shrub that typically grows to a height of up to 1.5 m (4 ft 11 in), its young branchlets hairy. The leaves are linear, 13–35 mm (0.51–1.38 in) long and 1.3–3 mm (0.051–0.118 in) wide with the edges curved under, on a petiole 0.5–2 mm (0.020–0.079 in) long. The upper surface of the leaves is glabrous and the lower surface is silky-hairy. The flowers are usually arranged on the ends of branchlets with either a single male or female flower, 2 to 5 male flowers, or a single female flower surrounded by up to 3 male flowers. Each flower has 5 sepals joined at the base and usually 5 white petals about 5 times as long as the sepals. Male flowers are on a slender pedicel 10–25 mm (0.39–0.98 in) long, the sepal lobes 2–3 mm (0.079–0.118 in) long and 1.3–1.6 mm (0.051–0.063 in) wide. The petals of male flowers are 7–15 mm (0.28–0.59 in) long and 2.2–4.5 mm (0.087–0.177 in) wide and there are 15 to 25 stamens in a central column. Female flowers are on a slender pedicel 15–25 mm (0.59–0.98 in) long, the sepal lobes 2.3–3.2 mm (0.091–0.126 in) long and 1.5–1.7 mm (0.059–0.067 in) wide, the petals 8–12 mm (0.31–0.47 in) long and 2.7–3.8 mm (0.11–0.15 in) wide. Flowering occurs in September and October and the fruit is an elliptic capsule, 8–10 mm (0.31–0.39 in) long and 6.0–7.5 mm (0.24–0.30 in) wide. [3]

Taxonomy and naming

Ricinocarpos undulatus was first formally described in 1848 by Johann Georg Christian Lehmann in his Plantae Preissianae . [4] [5] The specific epithet (undulatus) means "wavy". [6]

Distribution and habitat

This species grows in heath, shrubland, mallee and open woodland between Green Head, Wubin, Freemantle and Merredin in the Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest, Mallee and Swan Coastal Plain bioregions of south-western Western Australia. [3] [2]

Conservation status

Ricinocarpos undulatus is listed as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions. [2]

Related Research Articles

Ricinocarpos crispatus is a species of flowering plant in the family Euphorbiaceae and is endemic to south-western Queensland. It is a monoecious or dioecious shrub with linear leaves and white flowers, arranged either singly, with two to four male flowers, or a single female flower surrounded by one or two male flowers.

<i>Ricinocarpos glaucus</i> Species of shrub

Ricinocarpos glaucus is a species of flowering plant in the family Euphorbiaceae and is endemic to the south-west of Western Australia. It is an erect, monoecious or dioecious shrub with linear or narrowly oblong leaves and male and female flowers arranged singly or in small groups.

<i>Ricinocarpos gloria-medii</i> Species of shrub

Ricinocarpos gloria-medii is a species of flowering plant in the family Euphorbiaceae and is endemic to the Northern Territory of Australia. It is a spreading, monoecious or dioecious shrub with linear leaves and male and female flowers arranged singly or in small groups.

Ricinocarpos graniticus is a species of flowering plant in the family Euphorbiaceae and is endemic to the southwest of Western Australia. It is a monoecious shrub with linear leaves and creamy white flowers, arranged either singly, or with a single female flower surrounded by one or two male flowers.

<i>Ricinocarpos ledifolius</i> Species of shrub

Ricinocarpos ledifolius is a species of flowering plant in the family Euphorbiaceae and is endemic to eastern Queensland. It is a monoecious or dioecious shrub or small tree with linear leaves and white flowers, arranged either singly, or with two or three female or two to six male flowers, or a single female flower surrounded by two male flowers.

<i>Ricinocarpos linearifolius</i> Species of shrub

Ricinocarpos linearifolius is a species of flowering plant in the family Euphorbiaceae and is endemic to eastern Australia. It is a monoecious or dioecious shrub with hairy young branchlets, linear leaves and white flowers, arranged either singly, with two to four male flowers, or a single female flower surrounded by up to three male flowers.

<i>Ricinocarpos megalocarpus</i> Species of shrub

Ricinocarpos megalocarpus is a species of flowering plant in the family Euphorbiaceae and is endemic to the south coast of Western Australia. It is a compact, rounded, usually monoecious shrub with linear leaves and white flowers, arranged either singly, or male flowers in groups, or with a single female flower surrounded by up to six male flowers.

<i>Ricinocarpos muricatus</i> Species of shrub

Ricinocarpos muricatus is a species of flowering plant in the family Euphorbiaceae and is endemic to the south-west of Western Australia. It is an erect to spreading, sticky, monoecious shrub with linear leaves and yellow flowers arranged in a raceme, with one or two female flowers surrounded by 8 to 12 male flowers.

Ricinocarpos oliganthus is a species of flowering plant in the family Euphorbiaceae and is endemic to a small area in the south-west of Western Australia. It is a monoecious shrub with linear to narrowly oblong leaves and white to creamy white flowers arranged singly on the ends of branchlets.

Ricinocarpos pilifer is a species of flowering plant in the family Euphorbiaceae and is endemic to a small area in the south-west of Western Australia. It is a compact monoecious shrub with narrowly oblong leaves and creamy white flowers arranged singly, or with two to four male flowers, or a single female flower with one or two male flowers.

<i>Ricinocarpos psilocladus</i> Species of shrub

Ricinocarpos psilocladus is a species of flowering plant in the family Euphorbiaceae and is endemic to the west coast of Western Australia. It is an erect, open, monoecious or dioecious shrub with linear to narrowly oblong or narrowly egg-shaped leaves, and white or yellow flowers arranged singly, or with two to five male flowers, or a single female flower surrounded by up to three male flowers.

Ricinocarpos rosmarinifolius is a species of flowering plant in the family Euphorbiaceae and is endemic to the Kimberley of northern Western Australia. It is an erect, slender monoecious shrub with linear leaves and inconspicuous white flowers arranged singly, or with two to four male flowers, or a single female flower surrounded by up to four male flowers.

Ricinocarpos ruminatus is a species of flowering plant in the family Euphorbiaceae and is endemic to the Expedition Range in central Queensland. It is an erect, monoecious shrub with linear leaves and white flowers, arranged on the ends of branches with 2 to 5 male flowers, or a female flower surrounded by up to 4 male flowers.

Ricinocarpos speciosus is a species of flowering plant in the family Euphorbiaceae and is endemic to eastern Australia. It is a slender, erect, open monoecious or dioeciuos shrub with narrowly elliptic or narrowly oblong leaves and white flowers arranged with two or more male flowers, or with one to four female flowers surrounded by up to four male flowers.

Ricinocarpos stylosus is a species of flowering plant in the family Euphorbiaceae and is endemic to the Norseman district of Western Australia. It is an spreading, rounded, monoecious or dioeceous shrub or small tree, with linear to narrowly oblong leaves and female flowers arranged singly, or with two to five male flowers, or a single female flower surrounded by up to four male flowers.

<i>Ricinocarpos trachyphyllus</i> Species of shrub

Ricinocarpos trachyphyllus is a species of flowering plant in the family Euphorbiaceae and is endemic to eastern Australia. It is an monoecious or dioecious shrub with linear leaves and white flowers, arranged either singly, or with 3 male flowers, or one female flower surrounded by three male flowers.

Ricinocarpos trichophorus is a species of flowering plant in the family Euphorbiaceae and is endemic to the south coast of Western Australia. It is an erect, openly branched, monoecious shrub with linear to narrowly oblong leaves, and white flowers in a raceme with two female flowers and up to five male flowers.

Ricinocarpos trichophyllus is a species of flowering plant in the family Euphorbiaceae and is endemic to north-western Australia. It is an open, slender, monoecious shrub with linear to narrowly oblong leaves, and flowers in a raceme with one female flower surrounded by two or three male flowers.

<i>Ricinocarpos tuberculatus</i> Species of shrub

Ricinocarpos tuberculatus is a species of flowering plant in the family Euphorbiaceae and is endemic to the south-west of Western Australia. It is an erect, monoecious or dioecious shrub or small tree with linear leaves, and white flowers in a umbel with either 2 to 7 male flowers or a single female flower surrounded by up to 5 male flowers.

<i>Ricinocarpos velutinus</i> Species of shrub

Ricinocarpos velutinus is a species of flowering plant in the family Euphorbiaceae and is endemic to the south-west of Western Australia. It is an erect, rounded, usually monoecious shrub with linear leaves, and yellow flowers with either all female or all male flowers, or one or two female flowers with up to 13 male flowers below them.

References

  1. 1 2 "Ricinocarpos undulatus". Australian Plant Census. Retrieved 12 November 2023.
  2. 1 2 3 "Ricinocarpos undulatus". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. 1 2 Halford, David A.; Henderson, Rodney J.F. (2007). "A taxonomic revision of Ricinocarpos Desf. (Euphorbiaceae: Ricinocarpeae, Ricinocarpinae)". Austrobaileya. 7 (3): 435–437. Retrieved 12 November 2023.
  4. ↑ "Ricinocarpos undulatus". Australian Plant Name Index. Retrieved 12 November 2023.
  5. ↑ Lehmann, Johann G.C. (1848). Plantae Preissianae. Vol. 2. Hamburg. Retrieved 12 November 2023.
  6. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 331. ISBN   9780958034180.
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