Hibbertia auriculiflora

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Hibbertia auriculiflora
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Dilleniales
Family: Dilleniaceae
Genus: Hibbertia
Species:
H. auriculiflora
Binomial name
Hibbertia auriculiflora

Hibbertia auriculiflora is a species of flowering plant in the family Dilleniaceae and is endemic to northern parts of the Northern Territory. It is usually a short-lived perennial shrublet covered with hairs and scales and has mostly oblong to linear leaves. The flowers are usually arranged singly or in groups of two or three in leaf axils, with twenty-five to thirty-two stamens arranged in groups around the two carpels.

Contents

Description

Hibbertia auriculiflora is usually a short-lived perennial shrublet that typically grows to a height of up to 50 cm (20 in), its foliage more or less densely covered with hairs and scales. The leaves are oblong to linear, 8.3–61.3 mm (0.33–2.41 in) long and 2.3–10.1 mm (0.091–0.398 in) wide and sessile or on a petiole up to 4.6 mm (0.18 in) long. The flowers are arranged singly or in groups of two or three in leaf axils on a peduncle 2.3–8.5 mm (0.091–0.335 in) long, with elliptic bracts 3.1–4.5 mm (0.12–0.18 in) long. The five sepals are joined at the base, the two outer sepal lobes 5.2–8.2 mm (0.20–0.32 in) long and the inner lobes 3.9–6.1 mm (0.15–0.24 in) long. The five petals are egg-shaped with the narrower end towards the base, yellow, 3.4–9.6 mm (0.13–0.38 in) long with two lobes. There are twenty-five to thirty-two stamens arranged in groups around the two densely scaly carpels, each carpel with two ovules. Flowering occurs from April to May. [2] [3]

Taxonomy

Hibbertia auriculiflora was first formally described in 2010 by Hellmut R. Toelken in the Journal of the Adelaide Botanic Gardens from specimens he collected above the falls on Waterfall Creek in 2004. [2] [4] The specific epithet (auriculiflora) means "earlike-appendage flowered", referring to the spreading tips of the sepal lobes. [2]

In the same paper, Toelken described two subspecies, and the names are accepted by the Australian Plant Census:

Distribution and habitat

This hibbertia grows in sandy soil on sandstone in woodland on the Arnhem Land escarpment in the northern parts of the Northern Territory. [2]

Conservation status

Goodenia auriculiflora subsp. auriculiflora is classified as of "near threatened" but subsp. minor is listed as of "least concern" under the Northern Territory Government Territory Parks and Wildlife Conservation Act 1976. [3] [7]

See also

Related Research Articles

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Hibbertia aspera, commonly known as rough guinea flower, is a species of flowering plant in the family Dilleniaceae and is endemic to eastern Australia. It is an ascending or erect shrub with low-lying or scrambling branches, oblong to lance-shaped or egg-shaped leaves with the narrower end towards the base, and yellow flowers with four to six stamens in a single group, joined at the base.

<i>Hibbertia cistiflora</i> Species of flowering plant

Hibbertia cistiflora is a species of flowering plant in the family Dilleniaceae and is endemic to south-eastern continental Australia. It is a small, erect to low-lying shrub with linear to lance-shaped leaves and yellow flowers usually with four or six stamens arranged in a single cluster.

Hibbertia atrichosepala is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted area in the south-west of Western Australia. It is an upright shrub with crowded linear to tapering leaves and yellow flowers arranged singly in leaf axils with glabrous sepals and the five stamens all on one side of the two carpels.

Hibbertia acaulothrix is a species of flowering plant in the family Dilleniaceae and is endemic to New South Wales. It is an erect shrub with lance-shaped leaves and yellow flowers arranged singly, with nine to thirteen stamens arranged around the carpels.

Hibbertia alopecota is a species of flowering plant in the family Dilleniaceae and is endemic to the Northern Territory. It is a low shrub with elliptic to lance-shaped leaves and yellow flowers arranged singly in leaf axils, with sixteen to twenty-four stamens arranged in bundles around two carpels.

Hibbertia angulata is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted area in the Northern Territory. It is an erect sub-shrub with sessile, linear leaves and yellow flowers arranged singly in leaf axils, with seventeen to nineteen stamens arranged in bundles around the three carpels.

Hibbertia appressa, commonly known as trailing guinea flower, is a species of flowering plant in the family Dilleniaceae and is endemic to south-eastern Australia. It is a low-lying or scrambling shrub with lance-shaped to egg-shaped leaves and yellow flowers with nine to twelve stamens arranged in a single group.

Hibbertia araneolifera is a species of flowering plant in the family Dilleniaceae and is endemic to Queensland. It is a small shrub with wiry branches, narrow elliptic to lance-shaped leaves and yellow flowers arranged singly in leaf axils, with forty to forty-four stamens arranged around the three carpels.

Hibbertia argyrochiton is a species of flowering plant in the family Dilleniaceae and is endemic to northern parts of the Northern Territory. It is a shrub densely covered with scales and has elliptic to lance-shaped leaves, and yellow flowers usually arranged singly in leaf axils, with twenty to twenty-four stamens arranged in groups around the two carpels.

Hibbertia axillaris is a species of flowering plant in the family Dilleniaceae and is endemic to northern Western Australia. It is usually a multi-stemmed shrublet with ridged branchlets, foliage covered with scales and rosette-like hairs and mostly elliptic to lance-shaped leaves. The flowers are arranged singly in leaf axils, with forty-two to fifty stamens arranged around the three carpels.

Hibbertia basaltica, commonly known as basalt guinea flower, is a species of flowering plant in the family Dilleniaceae and is endemic to Tasmania. It is a prostrate or low-lying subshrub with linear to oblong leaves and yellow flowers with five or six stamens arranged in a two groups on either side of the two carpels.

Hibbertia bicarpellata is a species of flowering plant in the family Dilleniaceae and is endemic to northern Queensland. It is a shrub with hairy, ridged branches, elliptic leaves and yellow flowers arranged singly in leaf axils, with twenty to twenty-six stamens arranged in groups around the two carpels.

Hibbertia brennanii is a species of flowering plant in the family Dilleniaceae and is endemic to the Arnhem Land escarpment. It is a low, spreading sub-shrub with hairy foliage, elliptic to lance-shaped leaves and pale yellow flowers arranged singly in leaf axils, with ten to twelve stamens arranged in groups around the two carpels.

Hibbertia brevipedunculata is a species of flowering plant in the family Dilleniaceae and is endemic to northern Australia. It is a sub-shrub with hairy foliage, linear to lance-shaped leaves with the narrow end towards the base, and yellow flowers arranged singly on the ends of branches or short side shoots, with thirty to forty-four stamens arranged in bundles around the two carpels.

Hibbertia cactifolia is a species of flowering plant in the family Dilleniaceae and is endemic to the Arnhem Land escarpment. It is a multi-stemmed shrublet with hairy foliage, oblong to elliptic leaves and yellow flowers arranged singly in leaf axils, with twenty-six to twenty-eight stamens arranged in groups around the two carpels.

Hibbertia caudice is a species of flowering plant in the family Dilleniaceae and is endemic to northern Australia. It is a shrub with wiry stems, hairy foliage, elliptic to lance-shaped leaves with the narrower end towards the base, and yellow flowers arranged in leaf axils, mostly with twenty-four to twenty-six stamens arranged in groups around the two carpels.

Hibbertia ciliolata is a species of flowering plant in the family Dilleniaceae and is endemic to the northern part of the Northern Territory. It is a shrub with a single stem, hairy foliage, linear to elliptic leaves, and yellow flowers arranged in leaf axils, mostly with eighteen to twenty-six stamens arranged in groups around the two carpels.

Hibbertia cinerea is a species of flowering plant in the family Dilleniaceae and is endemic to the southern part of the Eyre Peninsula in South Australia. It is a densely-branched, hairy shrub with narrow elliptic to lance-shaped leaves, and yellow flowers arranged on the ends of branchlet, with nine to twelve stamens arranged in a group on one side of the two carpels.

Hibbertia circularis is a species of flowering plant in the family Dilleniaceae and is endemic to the northern part of the Northern Territory. It is a perennial herb with prostrate, trailing branches, elliptic to more or less round leaves, and yellow flowers arranged in leaf axils, with thirty stamens arranged in groups around the two carpels.

Hibbertia cistifolia is a species of flowering plant in the family Dilleniaceae and is endemic to northern Australia. It is a prostrate to low-lying sub-shrub with trailing, wiry stems, hairy foliage, oblong to elliptic leaves and yellow flowers arranged in leaf axils, with forty to fifty-eight stamens arranged around the two carpels.

References

  1. ↑ "Hibbertia auriculiflora". Australian Plant Census. Retrieved 4 April 2021.
  2. 1 2 3 4 5 Toelken, Hellmut R. (2010). "Notes on Hibbertia (Dilleniaceae) 5. H. melhanioides and H. tomentosa groups from tropical Australia" (PDF). Journal of the Adelaide Botanic Gardens. 23: 98–101. Retrieved 4 April 2021.
  3. 1 2 "Hibbertia auriculiflora subsp. auriculiflora". Northern Territory Government. Retrieved 4 April 2021.
  4. ↑ "Hibbertia auriculiflora". APNI. Retrieved 4 April 2021.
  5. ↑ "Hibbertia auriculiflora subsp. auriculiflora". Australian Plant Census. Retrieved 4 April 2021.
  6. ↑ "Hibbertia auriculiflora subsp. minor". Australian Plant Census. Retrieved 4 April 2021.
  7. ↑ "Hibbertia auriculiflora subsp. minor". Northern Territory Government. Retrieved 4 April 2021.
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