Hibbertia marginata

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

Hibbertia marginata, commonly known as bordered guinea flower, [2] is a species of flowering plant in the family Dilleniaceae and is endemic to the North Coast of New South Wales. It is a spreading shrub with hairy young branches, oblong to lance-shaped leaves and yellow flowers with thirty to forty stamens and many staminodes arranged around three hairy carpels.

Contents

Description

Hibbertia marginata is a spreading shrub that typically grows to a height of 50–70 cm (20–28 in) with finely hairy, wiry young branches and that forms suckers. The leaves are more or less oblong to lance-shaped, sometimes with the narrower end towards the base, 10–40 mm (0.39–1.57 in) long, 3–8 mm (0.12–0.31 in) wide on a petiole 1–2 mm (0.039–0.079 in) long. The flowers are arranged on the ends of branchlets, 20–30 mm (0.79–1.18 in) in diameter, and sessile with leaf-like bracts about 10 mm (0.39 in) long. The sepals are hairy, 15–20 mm (0.59–0.79 in) long, the outer sepals usually longer than the inner ones. The petals are yellow, egg-shaped with the narrower end towards the base, 10–15 mm (0.39–0.59 in) long with thirty to fifty stamens and many staminodes arranged around three hairy carpels, each carpel with six ovules. Flowering occurs in September and October. [2] [3] [4] [5]

Taxonomy

Hibbertia marginata was first formally described in 1990 by Barry Conn in the journal Muelleria from specimens collected in 1987. [4] [6]

Distribution and habitat

Bordered guinea flower grows in the grassy understorey of forest in the Richmond Range of north-eastern New South Wales. [3] [4]

Conservation

This hibbertia is classified as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and the New South Wales Government Biodiversity Conservation Act 2016 . The main threats to the species are land clearing, road maintenance and inappropriate fire regimes. [2] This was one of eleven species selected for the Save a Species Walk campaign in April 2016; scientists walked 300 km to raise money for collection of seeds to be prepared and stored at the Australian PlantBank at the Australian Botanic Garden, Mount Annan. [7]

Related Research Articles

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

Hibbertia empetrifolia, 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 to spreading shrub with wiry stems, oblong to lance-shaped leaves with the narrower end towards the base, and pale to bright yellow flowers arranged on the ends of branchlets, with five to nine stamens arranged on one side of the two carpels.

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

Hibbertia hermanniifolia is a species of flowering plant in the family Dilleniaceae and is endemic to eastern Australia. It is an erect shrub with spatula-shaped to wedge-shaped leaves and yellow flowers arranged singly in leaf axils, with ten to fifteen stamens arranged around two hairy carpels.

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

Hibbertia bracteata is a species of flowering plant, in the family Dilleniaceae, and is endemic to eastern New South Wales. It is a shrub with lance-shaped to oblong leaves and yellow flowers with about sixteen stamens arranged on one side of the two carpels.

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

Hibbertia acuminata is a species of flowering plant in the family Dilleniaceae and is endemic to eastern Australia. It is an erect shrub with lance-shaped to egg-shaped, stem-clasping leaves and yellow flowers arranged singly in leaf axils with about forty stamens surrounding the 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 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 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 circumdans is a species of flowering plant in the family Dilleniaceae and is endemic to New South Wales. It is an erect shrub with hairy branches, linear to wedge-shaped or spatula-shaped leaves, and yellow flowers arranged on short side shoots, with fifteen to thirty stamens arranged in groups around the three carpels.

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

Hibbertia covenyana is a species of flowering plant in the family Dilleniaceae and is endemic to New South Wales. It is an erect or semi-prostrate shrub with hairy foliage, oblong leaves and yellow flowers with seven to ten stamens arranged on one side of the two carpels.

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.

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.

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

Hibbertia fasciculiflora is a species of flowering plant in the family Dilleniaceae and is endemic to the south-west of Western Australia. It is an erect to spreading shrub with linear to narrow oblong leaves arranged in dense bunches near the ends of branchlets, and yellow flowers borne among the leaf bundles with eight to ten stamens all on one side of 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 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 hexandra, commonly known as tree guinea flower, is a species of flowering plant in the family Dilleniaceae and is endemic to eastern Australia. It is a tall shrub or small tree with mostly lance-shaped leaves with the narrower end towards the base and yellow flowers arranged singly in leaf axils, with six stamens arranged around two hairy carpels.

<i>Hibbertia horricomis</i>

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 intermedia is a species of flowering plant in the family Dilleniaceae and is endemic to New South Wales. It is a small shrublet with linear to narrow oblong leaves and yellow flowers usually with seven to nine stamens arranged in a single cluster.

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

Hibbertia kaputarensis is a species of flowering plant in the family Dilleniaceae and is endemic to the Mount Kaputar area of New South Wales. It is a shrub with low-lying branches, oblong to lance-shaped leaves and yellow flowers with forty to about one hundred stamens arranged around three carpels.

Hibbertia ligulata is a species of flowering plant in the family Dilleniaceae and is endemic to the Northern Territory. It is a shrublet with hairy, wiry branches, linear leaves, and single yellow flowers arranged in leaf axils with twelve stamens arranged in bundles around the two 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.

References

  1. ↑ "Hibbertia marginata". Australian Plant Census. Retrieved 15 July 2021.
  2. 1 2 3 "Bordered guinea flower". New South Wales Government Office of Environment and Heritage. Retrieved 16 July 2021.
  3. 1 2 Harden, Gwen J. (1990). "Hibbertia marginata B.J.Conn". Plantnet - New South Wales Flora Online. Royal Botanic Gardens, Sydney. Retrieved 25 April 2016.
  4. 1 2 3 Conn, Barry J. (1990). "New species of Hibbertia Andr. (Dilleniaceae) in New South Wales". Muelleria. 7 (2): 294. Retrieved 15 July 2021.
  5. ↑ Toelken, Hellmut R. (2013). "Notes on Hibbertia subg. Hemistemma (Dilleniaceae) 9. The eastern Australian H. vestita group, including H. pedunculata and H. serpyllifolia" (PDF). Journal of the Adelaide Botanic Gardens. 9: 53–54. Retrieved 15 July 2021.
  6. ↑ "Hibbertia marginata". APNI. Retrieved 15 July 2021.
  7. ↑ Barlass, Tim (10 April 2016). "Scientists race to save 11 endangered plants in NSW". Sydney Morning Herald.
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