Hibbertia sessiliflora

Hibbertia sessiliflora
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Dilleniales
Family:	Dilleniaceae
Genus:	Hibbertia
Species:	H. sessiliflora
Binomial name
	Hibbertia sessiliflora; Toelken

Last updated May 07, 2023

Hibbertia sessiliflora is a species of flowering plant in the family Dilleniaceae and is endemic to south-eastern continental Australia. It is a small, sparsely hairy shrub with thin, low-lying branches, elliptic to lance-shaped leaves and yellow flowers with four to six stamens in a single cluster on one side of two hairy carpels.

Description

Hibbertia sessiliflora is sparsely hairy shrublet that typically grows to a height of up to 20 cm (7.9 in) and has wiry, spreading to low-lying branches. The leaves are elliptic to lance-shaped, 3.6–9.6 mm (0.14–0.38 in) long, 1.2–3.2 mm (0.047–0.126 in) wide on a petiole 0.3–0.6 mm (0.012–0.024 in) long, and with the edges rolled downwards. The flowers are arranged singly on the ends of short side shoots and are sessile with three or four densely hairy triangular bracts 1.2–1.5 mm (0.047–0.059 in) long at the base. The five sepal are 5.4–6.3 mm (0.21–0.25 in) long and joined at the base, the outer lobes slightly longer but narrower than the inner ones. The petals are yellow, egg-shaped with the narrower end towards the base, 3.8–9.6 mm (0.15–0.38 in) long with four to six stamens in a single cluster on one side of the two hairy carpels, each carpel with four ovules. Flowering mostly occurs from September to November.^[2]^[3]^[4]

Taxonomy

Hibbertia sessiliflora was first formally described in 1995 by Hellmut R. Toelken in the Journal of the Adelaide Botanic Gardens from specimens he collected near Dergholm.^[4]^[5]

Distribution and habitat

This hibbertia grows in heath and woodland in a restricted area near the border between South Australia and Victoria.^[2]^[3]^[4]

Related Research Articles

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 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 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 coloensis is a species of flowering plant in the family Dilleniaceae and is endemic to the Wollemi National Park of New South Wales. It is a shrub with linear to lance-shaped leaves, and yellow flowers arranged in leaf axils, with twenty-four to twenty-six stamens arranged around three carpels.

Hibbertia crinita is a species of flowering plant in the family Dilleniaceae and is endemic to south-eastern continental Australia. It is a spreading to low-lying shrub with hairy foliage, linear to lance-shaped or elliptic leaves and yellow flowers with ten to fifteen stamens arranged on one side of 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 extrorsa is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted part of the Northern Territory. It is a small, spreading shrub with hairy foliage, linear to elliptic leaves, and yellow flowers arranged in leaf axils with about thirty 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 hirticalyx is a species of flowering plant in the family Dilleniaceae and is endemic to south-eastern Australia. It is an erect, spreading or low-lying shrub with hairy foliage, elliptic leaves, and yellow flowers with eight to 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 the 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 malacophylla is a species of flowering plant in the family Dilleniaceae and is endemic to Queensland. It is a spreading shrub with densely hairy foliage, elliptic leaves, and single yellow flowers arranged in leaf axils with 50 to 55 stamens arranged around the two carpels.

Hibbertia pallidiflora is a species of flowering plant in the family Dilleniaceae and is endemic to south-eastern continental Australia. It is usually a small, dense shrub with hairy branches, egg-shaped to lance-shaped leaves with the narrower end towards the base, and cream-coloured to pale yellow flowers with eight to thirteen stamens joined at the base on one side of two carpels.

Hibbertia pancerea is a species of flowering plant in the family Dilleniaceae and is endemic to Kakadu National Park. It is a spreading shrub foliage densely covered with shield-like scales, that has elliptic leaves and yellow flowers arranged singly in leaf axils with 26 to 30 stamens arranged in bundles around two carpels.

Hibbertia rufociliata is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted area of north Queensland. It is a shrub with hairy foliage, elliptic to lance-shaped leaves with the narrower end towards the base, and yellow flowers usually arranged singly in leaf axils with 36 to 44 stamens arranged in bundles around two densely scaly carpels.

Hibbertia torulosa is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted area of Victoria, Australia. It is a shrublet with hairy foliage, linear leaves and yellow flowers with six stamens on one side of two hairy carpels.

Hibbertia villifera is a species of flowering plant in the family Dilleniaceae and is endemic to South Australia. It is a shrub with rigid, woody branches, hairy foliage, linear to elliptic leaves and yellow flowers with seven to eleven stamens on one side of two hairy carpels.

References

↑ "Hibbertia sessiliflora". Australian Plant Census. Retrieved 29 September 2021.
1 2 Toelken, Hellmut. "Hibbertia sessiliflora". Royal Botanic Gardens Victoria. Retrieved 29 September 2021.
1 2 Toelken, Hellmut R. (2000). "Notes on Hibbertia (Dilleniaceae) 3. H. sericea and associated species" (PDF). Journal of the Adelaide Botanic Gardens. 19: 40–42. Retrieved 29 September 2021.
1 2 3 Toelken, Hellmut R. (1995). "Notes on Hibbertia I. New taxa from south-eastern Australia" (PDF). Journal of the Adelaide Botanic Gardens. 16: 69–71. Retrieved 29 September 2021.
↑ "Hibbertia sessiliflora". APNI. Retrieved 29 September 2021.

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[APC-1] "Hibbertia sessiliflora". Australian Plant Census. Retrieved 29 September 2021.

[RBGV-2] 1 2 Toelken, Hellmut. "Hibbertia sessiliflora". Royal Botanic Gardens Victoria. Retrieved 29 September 2021.

[JABG1-3] 1 2 Toelken, Hellmut R. (2000). "Notes on Hibbertia (Dilleniaceae) 3. H. sericea and associated species" (PDF). Journal of the Adelaide Botanic Gardens. 19: 40–42. Retrieved 29 September 2021.

[JABG2-4] 1 2 3 Toelken, Hellmut R. (1995). "Notes on Hibbertia I. New taxa from south-eastern Australia" (PDF). Journal of the Adelaide Botanic Gardens. 16: 69–71. Retrieved 29 September 2021.

[APNI-5] "Hibbertia sessiliflora". APNI. Retrieved 29 September 2021.

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