Hibbertia decumbens

Hibbertia decumbens
	In the Blue Mountains National Park
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Dilleniales
Family:	Dilleniaceae
Genus:	Hibbertia
Species:	H. decumbens
Binomial name
	Hibbertia decumbens; Toelken

Last updated January 03, 2025

Hibbertia decumbens is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted area of New South Wales. It is a spreading, almost prostrate shrub with hairy foliage, egg-shaped to almost round leaves, and yellow flowers usually with nine to twelve stamens arranged in a group on one side of two carpels.

Description

Hibbertia decumbens is a spreading to almost prostrate shrub that typically grows to a height of up to 40 cm (16 in), the foliage covered with simple and star-like hairs. The leaves are egg-shaped with the narrower end towards the base to almost round, 4–8.5 mm (0.16–0.33 in) long and 2.5–6 mm (0.098–0.236 in) wide on a petiole 0.4–1.0 mm (0.016–0.039 in) long. The flowers are arranged on the ends of branchlets on a peduncle 5–10 mm (0.20–0.39 in) long, with linear bracts 1.1–1.5 mm (0.043–0.059 in) long. The five sepals are joined at the base, the sepal lobes 3.3–4.4 mm (0.13–0.17 in) long. The five petals are egg-shaped to wedge-shaped with the narrower end towards the base, bright yellow, 3.8–7.2 mm (0.15–0.28 in) long with a notch at the tip. There are usually nine to twelve stamens arranged in one group alongside the two woolly-hairy carpels, each carpel with two ovules. Flowering occurs from October to January.^[2]^[3]

Taxonomy

Hibbertia decumbens was first formally described in 1998 by Hellmut R. Toelken in the Journal of the Adelaide Botanic Gardens from specimens collected near Wentworth Falls in 1987.^[2]^[4] The specific epithet (decumbens) means prostrate, but with rising tips.^[5]

Distribution and habitat

This hibbertia grows on sandstone ledges in a few locations in the Blue Mountains.^[2]^[3]

Related Research Articles

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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 grows as 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 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.

Hibbertia eciliata is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted area of Queensland. It is a sparsely-branched shrub with densely hairy foliage, elliptic and yellow flowers arranged singly on the ends of branchlets, with between fifty and fifty-four stamens arranged in groups around the two carpels.

Hibbertia florida is a species of flowering plant in the family Dilleniaceae and is endemic to New South Wales. It is a small shrub with oblong to lance-shaped leaves and yellow flowers arranged on the ends of branchlets, with twelve to twenty-eight stamens arranged around three carpels.

Hibbertia hirta is a species of flowering plant in the family Dilleniaceae and is endemic to the Budawang Range in New South Wales. It is a shrub with hairy foliage, narrow elliptic to narrow lance-shaped leaves, and yellow flowers with eleven or twelve stamens arranged in a cluster on one side of the two carpels.

Hibbertia horricomis is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted area of New South Wales. It is a small, erect to spreading shrub with hairy foliage, linear to elliptic leaves, and yellow flowers with about twenty stamens arranged around the two hairy carpels.

Hibbertia incompta is a species of flowering plant in the family Dilleniaceae and is endemic to the Northern Territory. It is a weakly stemmed, often prostrate shrublet with hairy foliage, linear to elliptic leaves, and yellow flowers arranged in leaf axils with 45 to 60 stamens arranged in groups around the two or three carpels.

Hibbertia patens is a species of flowering plant in the family Dilleniaceae and is endemic to south-eastern Queensland. It is a much-branched shrub with hairy foliage, linear to oblong leaves, and yellow flowers arranged singly in leaf axils with 12 to 26 stamens arranged around two carpels.

Hibbertia persquamata is a species of flowering plant in the family Dilleniaceae and is endemic to the Northern Kimberley region of Western Australia. It is a spreading to prostrate shrub with flattened, scaly branches, narrow elliptic leaves and yellow flowers arranged singly in leaf axils with 20 to 26 stamens arranged around three scaly carpels.

Hibbertia porcata is a species of flowering plant in the family Dilleniaceae and is endemic to south-eastern continental Australia. It is a small, low-lying to prostrate shrub with linear leaves and yellow flowers with fifteen to twenty-five stamens arranged around three hairy carpels.

Hibbertia praemorsa is a species of flowering plant in the family Dilleniaceae and is endemic to southern New South Wales. It is a shrub with hairy foliage, oblong leaves and yellow flowers arranged singly on the ends of branches with seven to nine stamens on one side of two carpels.

Hibbertia puberula is a species of flowering plant in the family Dilleniaceae and is endemic to New South Wales. It is a small shrub with softly-hairy foliage, narrow egg-shaped to almost linear leaves, and yellow flowers usually arranged on singly short side shoots with ten to fourteen stamens on one side of two carpels.

Hibbertia samaria is a species of flowering plant in the family Dilleniaceae and is endemic to Victoria, Australia. It is a small, low-lying or mat-forming shrub with hairy foliage, linear leaves and yellow flowers with ten to fifteen stamens arranged around three hairy carpels.

Hibbertia simulans is a species of flowering plant in the family Dilleniaceae and is endemic to New South Wales. It is a much-branched shrub with softly-hairy foliage, linear leaves and yellow flowers with eight to ten stamens on one side of two hairy carpels.

References

↑ "Hibbertia decumbens". Australian Plant Census. Retrieved 11 May 2021.
1 2 3 Toelken, Hellmut R. (1998). "Notes on Hibbertia (Dilleniaceae) 2. The H. aspera – H. empetrifolia complex" (PDF). Journal of the Adelaide Botanic Gardens. 18 (2): 135–137. Retrieved 11 May 2021.
1 2 "Hibbertia decumbens". Royal Botanic Garden Sydney. Retrieved 11 May 2021.
↑ "Hibbertia decumbens". APNI. Retrieved 22 April 2021.
↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 179. ISBN 9780958034180.

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[APC-1] "Hibbertia decumbens". Australian Plant Census. Retrieved 11 May 2021.

[JABG-2] 1 2 3 Toelken, Hellmut R. (1998). "Notes on Hibbertia (Dilleniaceae) 2. The H. aspera – H. empetrifolia complex" (PDF). Journal of the Adelaide Botanic Gardens. 18 (2): 135–137. Retrieved 11 May 2021.

[RBGS-3] 1 2 "Hibbertia decumbens". Royal Botanic Garden Sydney. Retrieved 11 May 2021.

[APNI-4] "Hibbertia decumbens". APNI. Retrieved 22 April 2021.

[Sharr-5] Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 179. ISBN 9780958034180.

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