Ricinocarpos velutinus

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Ricinocarpos velutinus
Ricinocarpos velutinus.jpg
Near Bulfinch
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. velutinus
Binomial name
Ricinocarpos velutinus
Synonyms [1]
  • Plagianthera monoicusA.D.Chapm. nom. inval., nom. nud.
  • Plagianthus monoica Ewart
  • Plagianthus monoicus Helms ex Ewart
  • Ricinocarpus velutinusF.Muell.
  • Roeperia velutina(F.Muell.) Kuntze
Habit near Mullewa Ricinocarpos velutinus habit.jpg
Habit near Mullewa

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.

Contents

Description

Ricinocarpos velutinus is an erect, rounded, usually monoecious shrub that typically grows to a height of up to 2.0 m (6 ft 7 in), its young branchlets densely covered with white, star-shaped hairs. The leaves are linear, 25–55 mm (0.98–2.17 in) long and 1.5–4 mm (0.059–0.157 in) wide and sessile or on a short petiole. Both surfaces of the leaves are covered with soft, white, star-shaped hairs, and the edges of the leaves are curved downwards. The flowers are usually arranged on the ends of branchlets in a raceme with either all female or all male flowers, or one or two female flowers with up to 13 male flowers below them. Each flower has 5 sepals joined at the base and usually 5 yellow petals, slightly longer than the sepals. Male flowers are on a slender pedicel 4–11 mm (0.16–0.43 in) long, the sepal lobes 4–7 mm (0.16–0.28 in) long and 2–3 mm (0.079–0.118 in) wide. The petals of male flowers are 6.5–8.5 mm (0.26–0.33 in) long and 3–4 mm (0.12–0.16 in) wide and there are 40 to 70 stamens in a central column. Female flowers are on a stout pedicel 5–15 mm (0.20–0.59 in) long, the sepal lobes 8–10 mm (0.31–0.39 in) long and 4–5 mm (0.16–0.20 in) wide, the petals about 7 mm (0.28 in) long and 2 mm (0.079 in) wide. Flowering mainly occurs from August to October and the fruit is an elliptic capsule, 9–10 mm (0.35–0.39 in) long and 9–12 mm (0.35–0.47 in) wide. [2]

Taxonomy and naming

Ricinocarpos velutinus was first formally described in 1875 by Ferdinand von Mueller in his Fragmenta Phytographiae Australiae . [3] [4] The specific epithet (velutinus) means "velvety". [5]

Distribution and habitat

This species grows in shrubland or open woodland between Mullewa, Merredin and Coolgardie in the Avon Wheatbelt, Coolgardie, Geraldton Sandplains and Yalgoo bioregions of south-western Western Australia. [2] [6]

Conservation status

Ricinocarpos velutinus is listed as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions. [6]

Related Research Articles

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

Ricinocarpos bowmanii, commonly known as western wedding bush or Bowman jasmine, is a species of flowering plant in the family Euphorbiaceae and is endemic to New South Wales. It is usually a monoecious shrub with linear to oblong leaves and three to six male flowers around each female flower.

Ricinocarpos brevis is a species of flowering plant in the family Euphorbiaceae and is endemic to inland Western Australia. It is a monoecious, densely-branched shrub with narrowly oblong leaves and male and female flowers arranged singly or in small groups.

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

Ricinocarpos caniana is a species of flowering plant in the family Euphorbiaceae and is endemic to a restricted area of south-eastern Queensland. It is an erect monoecious or dioecious shrub with linear leaves and white flowers, arranged either singly, with two to five male flowers, or a single female flower surrounded by up to four male flowers.

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 cyanescens</i> Species of shrub

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

<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.

Ricinocarpos marginatus is a species of flowering plant in the family Euphorbiaceae and is endemic to the north-west of Western Australia. It is an erect, monoecious shrub with narrowly elliptic leaves and white flowers arranged in groups of male flowers, or up to three female flowers surrounded by many 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 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.

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 undulatus</i> Species of shrub

Ricinocarpos undulatus, commonly known as wedding bush, 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.

References

  1. 1 2 "Ricinocarpos velutinus". Australian Plant Census. Retrieved 15 November 2023.
  2. 1 2 Halford, David A.; Henderson, Rodney J.F. (2007). "A taxonomic revision of Ricinocarpos Desf. (Euphorbiaceae: Ricinocarpeae, Ricinocarpinae)". Austrobaileya. 7 (3): 437–438. Retrieved 15 November 2023.
  3. ↑ "Ricinocarpos velutinus". Australian Plant Name Index. Retrieved 15 November 2023.
  4. ↑ von Mueller, Ferdinand (1875). Fragmenta Phytographiae Australiae. Vol. 9. Melbourne: Victorian Government Printer. p. 2. Retrieved 15 November 2023.
  5. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 334. ISBN   9780958034180.
  6. 1 2 "Ricinocarpos velutinus". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
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