Hibbertia porongurupensis

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Hibbertia porongurupensis
Hibbertia porongurupensis.jpg
Status DECF P4.svg
Priority Four — Rare Taxa (DEC)
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Dilleniales
Family: Dilleniaceae
Genus: Hibbertia
Species:
H. porongurupensis
Binomial name
Hibbertia porongurupensis

Hibbertia porongurupensis is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted area of the south-west of Western Australia. It is a glabrous shrub with broadly elliptic to more or less round leaves and yellow flowers arranged singly in leaf axils with large numbers of stamens arranged around five carpels.

Contents

Description

Hibbertia porongurupensis is an erect, glabrous shrub that typically grows to a height of up to 2 m (6 ft 7 in) with flattened, slightly winged stems. Its leaves are arranged alternately along the branches, broadly elliptic to more or less round, 12–55 mm (0.47–2.17 in) long, wide and sessile, with the base wrapped around the stem. The flowers are arranged singly in leaf axils on a peduncle 15–30 mm (0.59–1.18 in) long with a single oblong bract 7–10 mm (0.28–0.39 in) long at the base. The five sepals are 10–15 mm (0.39–0.59 in) long and joined at the base, the inner sepals narrower than the outer ones. The five petals are yellow, broadly egg-shaped with the narrower end towards the base and 10–20 mm (0.39–0.79 in) long with a notch at the tip. There are many stamens and sometimes a few staminodes arranged in a ring around the five glabrous carpels, each with three to five ovules. Flowering occurs from September to October. [2] [3]

Taxonomy

Hibbertia porongurupensis was first formally described in 2000 by Judith R. Wheeler and Ruurd Dirk Hoogland in the journal Nuytsia from specimens collected by Hoogland at the base of the Devil's Slide in the Porongurup Range in 1971. [2] [4] The specific epithet (porongurupensis) refers to the type location. [2]

Distribution and habitat

The hibbertia grows in rock crevices and on rock outcrops, restricted to the upper slopes of the Porongurup Range. [3] [2]

Conservation status

Hibbertia porongurupensis is classified as "Priority Four" by the Government of Western Australia Department of Parks and Wildlife, [3] meaning that is rare or near threatened. [5]

See also

Related Research Articles

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

Hibbertia glabrisepala 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 sprawling shrub with linear to narrow oblong leaves and bright yellow flowers borne on the ends of short side shoots, with fifteen stamens in groups surrounding the five carpels.

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

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Hibbertia hooglandii is a species of flowering plant in the family Dilleniaceae and is endemic to the Kimberley region of Western Australia. It is a small, erect or spreading, multi-stemmed shrub with linear leaves and golden yellow flowers arranged singly in leaf axils, with seventeen to twenty-five stamens, all on one side of two densely hairy carpels.

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

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Hibbertia lividula is a species of flowering plant in the family Dilleniaceae and is endemic to the south-west of Western Australia. It is an erect or sprawling shrub with thin branchlets, bluish-grey, narrow elliptic to narrow oblong leaves and yellow flowers, with thirty to forty stamens arranged around the five glabrous carpels.

Hibbertia notibractea is a species of flowering plant in the family Dilleniaceae and is endemic to the south-west of Western Australia. It is an erect, sprawling or prostrate shrub with linear to narrow elliptic leaves and yellow flowers with eleven stamens, nine in groups of three, arranged around three glabrous carpels.

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

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Hibbertia psilocarpa is a species of flowering plant in the family Dilleniaceae and is endemic to the south-west of Western Australia. It is a shrub with spirally arranged, narrow oblong to linear leaves and yellow flowers usually with four to eight stamens, all on one side two glabrous carpels.

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

Hibbertia squarrosa is a species of flowering plant in the family Dilleniaceae and is endemic to the west of Western Australia. It is an erect shrub with linear leaves and yellow flowers with twenty stamens arranged around five glabrous carpels.

Hibbertia stenophylla is a species of flowering plant in the family Dilleniaceae and is endemic to Western Australia. It is a shrub with thick, linear to cylindrical leaves and yellow flowers with ten stamens in a single group on one side of two densely hairy carpels.

Hibbertia trichocalyx is a species of flowering plant in the family Dilleniaceae and is endemic to the south coast of Western Australia. It is an erect, spreading shrub with oblong to elliptic leaves and yellow flowers with eleven stamens arranged around three glabrous carpels.

Hibbertia turleyana is a species of flowering plant in the family Dilleniaceae and is endemic to a small area in the south of Western Australia. It is a low-lying shrub with more or less glabrous, linear leaves and bright yellow flowers with eight or nine stamens in a single group on one side of two densely hairy carpels.

References

  1. ↑ "Hibbertia porongurupensis". Australian Plant Census. Retrieved 24 August 2021.
  2. 1 2 3 4 Wheeler, Judith R.; Hoogland, Ruurd D. (2000). "Hibbertia porongurupensis, a new name for a species of Dilleniaceae endemic to the Porongurup Range". Nuytsia. 13 (2): 395–398. Retrieved 24 August 2021.
  3. 1 2 3 "Hibbertia porongurupensis". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ↑ "Hibbertia porongurupensis". APNI. Retrieved 24 August 2021.
  5. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 24 August 2015.
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