Hibbertia haplostemona

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Hibbertia haplostemona
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Dilleniales
Family: Dilleniaceae
Genus: Hibbertia
Species:
H. haplostemona
Binomial name
Hibbertia haplostemona

Hibbertia haplostemona is a species of flowering plant in the family Dilleniaceae and is endemic to the Northern Territory. It is a small, short-lived sub-shrub with wiry, prostrate or low-lying stems, elliptic to egg-shaped leaves that are soon lost, and small red flowers with five stamens .

Contents

Description

Hibbertia haplostemona is a short-lived sub-shrub that typically grows to a height of 30 cm (12 in) with wiry, prostrate to low-lying stems. The leaves are elliptic to egg-shaped, 20–50 mm (0.79–1.97 in) long, 8–23 mm (0.31–0.91 in) wide and serrated, on a petiole up to 25 mm (0.98 in) long, but are not persistent. The flowers are arranged singly on the ends of the main branches or on a peduncle 4–20 mm (0.16–0.79 in) long. The five sepals are oblong to elliptic and about the same size and shape as each other. The five petals are red, oblong to spatula-shaped, and about 3 mm (0.12 in) long. There are five stamens arranged around the carpels. [2]

Taxonomy

This species was first formally described in 1992 by Lyndley Craven and Clyde Robert Dunlop and given the name Pachynema diffusum in Australian Systematic Botany . [3] After genetic studies of plastid DNA, James W. Horn changed the name to Hibbertia haplostemona. [4] The name was chosen because Hibbertia diffusa had already been used for a different species. [5]

Distribution and habitat

This hibbertia grows on sandstone, often with Triodia species in the northern part of the Northern Territory. [2]

Conservation status

Hibbertia haplostemona is classified as of "least concern" under the Territory Parks and Wildlife Conservation Act 1976 and is conserved in Kakadu, Litchfield and Nitmiluk National Parks. [2]

See also

Related Research Articles

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<i>Hibbertia complanata</i>

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

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Hibbertia demissa is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted area of New South Wales. It is a low-lying shrublet with small elliptic leaves and single yellow flowers arranged on the ends of branchlets, with nine to twelve stamens arranged around three carpels.

<i>Hibbertia dilatata</i>

Hibbertia dilatata is a species of flowering plant in the family Dilleniaceae and is endemic to the Northern Territory. It is a sub-shrub with flattened stems and pale to bright pink, purplish or white flowers with seven to ten stamens.

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 fumana is a species of flowering plant in the family Dilleniaceae and is endemic to New South Wales. It is a low-lying to prostrate shrublet with narrow oblong leaves and yellow flowers with five to seven stamens arranged in a single cluster on one side of two hairy carpels. When first formally described in 2012 it was thought to be extinct, but small populations have since been found in the Sydney region.

Hibbertia hirsuta is a species of flowering plant in the family Dilleniaceae and is endemic to southern Australia. It is a small, slender, prostrate shrub with sparsely hairy foliage, narrow elliptic leaves and small yellow flowers with a single petal, usually only a single stamen and two 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 juncea is a species of flowering plant in the family Dilleniaceae and is endemic to the Northern Territory. It is a small shrub with leaves reduced to minute scales, and white to cream-coloured or pink flowers arranged in leaf axils with seven to ten stamens.

Hibbertia oblongata is a species of flowering plant in the family Dilleniaceae and is endemic to northern Australia. It is an erect to spreading shrub with scaly foliage, elliptic to oblong leaves, and yellow flowers usually arranged singly in leaf axils, with 16 to 36 stamens arranged in bundles around the 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 praestans is a species of flowering plant in the family Dilleniaceae and is endemic to northern parts of the Northern Territory. It is a small, broom-like shrub with red flowers arranged singly or in pairs in leaf axils with four stamens and a single carpel.

Hibbertia scabra is a species of flowering plant in the family Dilleniaceae and is endemic to the north of the Northern Territory. It is a small shrub with hairy foliage, linear to narrow elliptical leaves and yellow flowers arranged singly near the ends of branches with about fifty stamens arranged around two densely scaly carpels.

Hibbertia tricornis is a species of flowering plant in the family Dilleniaceae and is only known from a three specimens collected in Arnhem Land in the Northern Territory. It is a small, more or less prostrate shrublet with a few delicate, wiry branches, elliptic leaves and yellow flowers arranged singly in leaf axils with 19 to 24 stamens arranged in groups around two densely scaly carpels.

Hibbertia tridentata is a species of flowering plant in the family Dilleniaceae and is only known from a single population in Arnhem Land in the Northern Territory. It is a shrub with a few wiry branches, egg-shaped to triangular leaves with the narrower end towards the base, and yellow flowers usually arranged singly in leaf axils with eighteen to twenty stamens arranged around two densely scaly carpels.

References

  1. "Hibbertia haplostemona". Australian Plant Census. Retrieved 21 June 2021.
  2. 1 2 3 "Hibbertia haplostemona". Northern Territory Government. Retrieved 21 June 2021.
  3. "Pachynema diffusum". APNI. Retrieved 21 June 2021.
  4. Horn, James W. (July 2009). "Phylogenetics of Dilleniaceae Using Sequence Data from Four Plastid Loci (rbcL, infA, rps4, rpl16 Intron)". International Journal of Plant Sciences. 170 (6): 809. doi:10.1086/599239.
  5. "Hibbertia haplostemona". APNI. Retrieved 21 June 2021.