Ricinocarpos crispatus

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Ricinocarpos crispatus
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. crispatus
Binomial name
Ricinocarpos crispatus

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.

Contents

Description

Ricinocarpos crispatus is a monoecious or dioecious shrub that typically grows to a height of up to 2 m (6 ft 7 in), its young branchlets densely covered with greyish-white, star-shaped hairs. The leaves are linear, 15–25 mm (0.59–0.98 in) long and 1–2 mm (0.039–0.079 in) wide on a densely hairy petiole 1.2–3 mm (0.047–0.118 in) long. The upper surface of the leaves becomes glabrous and the lower surface is woolly-hairy. The flowers are arranged either as a single male or female flower, or as clusters of two to four male flowers, or with a single female flower surrounded by one or two male flowers. Male flowers are on a slender, densely hairy pedicel 3–14 mm (0.12–0.55 in) long, the sepals joined at the base and densely hairy, the sepal lobes egg-shaped, 3–4 mm (0.12–0.16 in) long, the petals white and egg-shaped with the narrower end towards the base, 4–5 mm (0.16–0.20 in) long and 2.3–2.6 mm (0.091–0.102 in) wide with wavy or curly edges. Each male flower has 20 to 30 stamens. Female flowers are on a stout, hairy pedicel 3–12 mm (0.12–0.47 in) long, the sepal lobes 3.4–4.0 mm (0.13–0.16 in) long and 1.8–2.1 mm (0.071–0.083 in) wide and the petals white and egg-shaped with the narrower end towards the base and 3.8–4.1 mm (0.15–0.16 in) long with wavy or curly edges. Flowering has been observed in August and December, and the fruit is a flattened spherical capsule about 5 mm (0.20 in) in diameter and covered with star-shaped hairs. [2]

Taxonomy and naming

Ricinocarpos crispatus was first formally described in 2007 by David Halford and Rodney Henderson in the journal Austrobaileya from specimens collected in Mariala National Park in 1991. [2] [3] The specific epithet (crispatus) means irregularly waved and twisted, referring to the edges of the petals of this species. [2]

Distribution and habitat

This species grows in shrubland on the slopes and crests of low tablelands, approximately in the area between Blackall, Quilpie and Charleville in south-western Queensland. [2]

Related Research Articles

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

Ricinocarpos is a genus of evergreen flowering plants in the family Euphorbiaceae and is endemic to Australia. Plants in the genus Ricinocarpos are monoecious shrubs with leaves arranged alternately along the branches, the edges curved downwards or rolled under. Male flowers are arranged singly or in racemes at the ends of branchlets, with four to six sepals that are fused at the base. There are four to six petals that are longer than the sepals, with many stamens fused to form a central column. Female flowers are arranged singly and are similar to male flowers but with three styles fused at the base and with a deeply branched tip. The fruit is a capsule containing seeds with an elaiosome.

<i>Beyeria lechenaultii</i> Species of plant

Beyeria lechenaultii is a species of dioecious flowering plant in the spurge family, Euphorbiaceae, that is endemic to Australia.

Eremophila woodiae is a flowering plant in the figwort family, Scrophulariaceae and is endemic to western central Queensland. It is a small shrub with linear to lance-shaped leaves crowded near the ends of the branches, hairy sepals and violet to light purple petals.

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

Commersonia amystia is a species of flowering plant in the family Malvaceae and endemic to eastern Australia. It is a dwarf shrub with narrow egg-shaped leaves that are densely covered with star-like hairs on the lower surface, and has flowers with five white sepals that turn pink as they age, and five smaller white petals.

Pimelea rupestris is a species of flowering plant in the family Thymelaeaceae and is endemic to eastern Australia. It is a shrub with hairy young stems, elliptic to egg-shaped leaves with the narrower end towards the base, and heads of white flowers that are either all male or all female.

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

Commersonia macrostipulata is a species of flowering plant in the family Malvaceae and is endemic to Queensland. It is a shrub or tree with egg-shaped leaves that are slightly serrated on the edges, flowers with five cream-coloured to white sepals and bristly fruit.

Androcalva argentea is a species of flowering plant in the family Malvaceae and is endemic to Queensland. It is a tall shrub that forms suckers from rhizomes and has silvery branchlets and leaves, the leaves egg-shaped with wavy edges and serrated, and dense clusters of 10 to 30 white to cream-coloured flowers.

Androcalva beeronensis is a species of flowering plant in the family Malvaceae and is endemic to Queensland. It is a shrub that forms suckers from rhizomes and has branchlets and leaves covered with soft, golden hairs, the leaves egg-shaped to lance-shaped with toothed edges, and clusters of 9 to 24 cream-coloured to white flowers.

Androcalva inglewoodensis is a species of flowering plant in the family Malvaceae and is endemic to south-eastern Queensland. It is a spreading, prostrate shrub that has hairy young branchlets, egg-shaped to elliptic leaves with irregularly serrated edges, and small groups of white to cream-coloured flowers.

<i>Androcalva johnsonii</i> Species of shrub

Androcalva johnsonii is a species of flowering plant in the family Malvaceae and is endemic to central Queensland. It is a low, spreading shrub that has hairy young branches, narrowly egg-shaped or oblong leaves with rounded teeth, and small groups of white to pale pink flowers.

Androcalva pearnii is a species of flowering plant in the family Malvaceae and is endemic to the Blackdown Tableland National Park in eastern Queensland. It is shrub that forms suckers and has hairy new growth, wavy, oblong to elliptic leaves with rounded lobes on the edges, and groups of 3 to 8 white and cream-coloured to pale green flowers.

<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.

<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.

<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.

References

  1. "Ricinocarpos crispatus". Australian Plant Census. Retrieved 18 August 2023.
  2. 1 2 3 4 Halford, David A.; Henderson, Rodney J.F. (2007). "A taxonomic revision of Ricinocarpos Desf. (Euphorbiaceae: Ricinocarpeae, Ricinocarpinae)". Austrobaileya. 7 (3): 402–406. Retrieved 18 August 2023.
  3. "Ricinocarpos crispatus". Australian Plant Name Index. Retrieved 18 August 2023.